| Count | LOCID | Facility Name | City | State | Ownership | AWOS Type |
|---|---|---|---|---|---|---|
| 1 | 05U | Eureka | Eureka | NV | Non-Federal | AWOS-3 |
| 2 | 0O5 | University | Davis | CA | Non-Federal | AWOS-3 |
| 3 | 10G | Holmes County | Millersburg | OH | Non-Federal | AWOS-3 |
| 4 | 11A | Clayton Muni | Clayton | AL | Non-Federal | AWOS-3P/T |
| 5 | 11R | Brenham Muni | Brenham | TX | Non-Federal | AWOS-3 |
| 6 | 12J | Brewton Muni | Brewton | AL | Non-Federal | AWOS-3P/T |
| 7 | 1A5 | Macon County | Franklin | NC | Non-Federal | AWOS-3P |
| 8 | 1A6 | Middlesboro-Bell County | Middlesboro | KY | Non-Federal | AWOS-3 |
| 9 | 1B1 | Columbia County | Hudson | NY | Non-Federal | AWOS-3 |
| 10 | 1F0 | Ardmore Downtown Executive | Ardmore | OK | Non-Federal | AWOS-3 |
| 11 | 1G0 | Wood County | Bowling Green | OH | Non-Federal | AWOS-3P/T |
| 12 | 1H2 | Effingham County Memorial | Effingham | IL | Non-Federal | AWOS-3 |
| 13 | 1M9 | Lake Barkley State Park | Cadiz | KY | Non-Federal | AWOS-3 |
| 14 | 1O2 | Lampson Field Airport | Lakeport | CA | Non-Federal | AWOS-2 |
| 15 | 1P1 | Plymouth Muni | Plymouth | NH | Non-Federal | AWOS-3P/T |
| 16 | 1V5 | Boulder Muni | Boulder | CO | Non-Federal | AWOS-3P/T |
| 17 | 1V6 | Fremont County | Canon City | CO | Non-Federal | AWOS-3 |
| 18 | 20V | Mc Elroy Airfield | Kremmling | CO | Non-Federal | AWOS-3P/T |
| 19 | 22N | Jack Arner Memorial | Lehighton | PA | Non-Federal | AWOS-3P/T |
| 20 | 24J | Suwannee County | Live Oak | FL | Non-Federal | AWOS-3T |
| 21 | 27A | Elbert County-Patz Field | Elberton | GA | Non-Federal | AWOS-3P/T |
| 22 | 27K | Georgetown Scott County-Marshall Field | Georgetown | KY | Non-Federal | AWOS-3 |
| 23 | 2G4 | Garrett County | Oakland | MD | Non-Federal | AWOS-3 |
| 24 | 2I0 | Madisonville Muni | Madisonville | KY | Non-Federal | AWOS-3 |
| 25 | 2IS | Airglades | Clewiston | FL | Non-Federal | AWOS-3 |
| 26 | 2K3 | Stanton County Muni | Johnson | KS | Non-Federal | AWOS-3 |
| 27 | 2Q3 | Yolo County-Davis/Woodland/Winters | Davis/Woodland/Winters | CA | Non-Federal | AWOS-3P |
| 28 | 2V2 | Vance Brand | Longmont | CO | Non-Federal | AWOS-3P/T |
| 29 | 2W6 | Capt Walter Francis Duke Rgnl at St. Mary's | Leonardtown | MD | Non-Federal | AWOS-3 |
| 30 | 36U | Heber City Muni-Russ McDonald Field | Heber | UT | Non-Federal | AWOS-3P/T |
| 31 | 3A1 | Folsom Field | Cullman | AL | Non-Federal | AWOS-3 |
| 32 | 3B1 | Greenville Muni | Greenville | ME | Non-Federal | AWOS-A |
| 33 | 3I2 | Mason County | Point Pleasant | WV | Non-Federal | AWOS-1 |
| 34 | 3J7 | Greene County Regional | Greensboro | GA | Non-Federal | AWOS-A |
| 35 | 3LF | Litchfield Muni | Litchfield | IL | Non-Federal | AWOS-3P/T |
| 36 | 3O7 | Hollister Muni | Hollister | CA | Non-Federal | AWOS-3 |
| 37 | 3T5 | Fayette Regional Air Center | La Grange | TX | Non-Federal | AWOS-3 |
| 38 | 40J | Perry-Foley | Perry | FL | Non-Federal | AWOS-1 |
| 39 | 40N | Chester County G O Carlson | Coatesville | PA | Non-Federal | AWOS-3 |
| 40 | 42J | Keystone Airpark | Keystone Heights | FL | Non-Federal | AWOS-3T |
| 41 | 48I | Braxton County | Sutton | WV | Non-Federal | AWOS-3P |
| 42 | 4A7 | Clayton County-Tara Field | Hampton | GA | Non-Federal | AWOS-3P/T |
| 43 | 4A9 | Isbell Field | Fort Payne | AL | Non-Federal | AWOS-3 |
| 44 | 4I3 | Knox County | Mount Vernon | OH | Non-Federal | AWOS-3 |
| 45 | 4I7 | Putnam County | Greencastle | IN | Non-Federal | AWOS-3 |
| 46 | 4O4 | Mc Curtain County Regional | Idabel | OK | Non-Federal | AWOS-3P/T |
| 47 | 4S2 | Hood River | Hood River | OR | Non-Federal | AWOS-3P |
| 48 | 4SD | Reno/Stead | Reno | NV | Non-Federal | AWOS-3 |
| 49 | 55J | Fernandina Beach Muni | Fernandina Beach | FL | Non-Federal | AWOS-3 |
| 50 | 5B2 | Saratoga County | Saratoga Springs | NY | Non-Federal | AWOS-3 |
| 51 | 5J0 | Grant Count Regional/Ogilvie Field | John Day | OR | Non-Federal | AWOS-3 |
| 52 | 6A2 | Griffin-Spalding County | Griffin | GA | Non-Federal | AWOS-3 |
| 53 | 6S2 | Florence Muni | Florence | OR | Non-Federal | AWOS-3P |
| 54 | 74D | Marshall County | Moundsville | WV | Non-Federal | AWOS-3P |
| 55 | 74V | Roosevelt Muni | Roosevelt | UT | Non-Federal | AWOS-3P/T |
| 56 | 7N0 | New Orleans Downtown Heliport | New Orleans | LA | Federal | AWOS-3 |
| 57 | 82V | Pine Bluffs Muni | Pine Bluffs | WY | Non-Federal | AWOS-3 |
| 58 | 8A0 | The Albertville Muni-Thomas J Brumlik Field | Albertville | AL | Non-Federal | AWOS-3P/T |
| 59 | 8A4 | Indianapolis Downtown Heliport | Indianapolis | IN | Non-Federal | AWOS-3 |
| 60 | 8B0 | Steven A Bean Muni | Rangeley | ME | Non-Federal | AWOS-3P/T |
| 61 | 8G7 | Zelienople Muni | Zelienople | PA | Non-Federal | AWOS-3 |
| 62 | 9A1 | Covington Muni | Covington | GA | Non-Federal | AWOS-A |
| 63 | 9S9 | Lexington | Lexington | OR | Non-Federal | AWOS-3P |
| 64 | AAA | Logan County | Lincoln | IL | Non-Federal | AWOS-3 |
| 65 | AAS | Taylor County | Campbellsville | KY | Non-Federal | AWOS-3 |
| 66 | ACB | Antrim County | Bellaire | MI | Non-Federal | AWOS-3 |
| 67 | ACJ | Souther Field | Americus | GA | Non-Federal | AWOS-3 |
| 68 | ACP | Allen Parish | Oakdale | LA | Non-Federal | AWOS-3P/T |
| 69 | ACQ | Waseca Muni | Waseca | MN | Non-Federal | AWOS-3 |
| 70 | ADC | Wadena Muni | Wadena | MN | Non-Federal | AWOS-3 |
| 71 | ADH | Ada Muni | Ada | OK | Non-Federal | AWOS-3 |
| 72 | ADM | Ardmore Muni | Ardmore | OK | Non-Federal | AWOS-3P/T |
| 73 | ADU | Audubon County | Audubon | IA | Non-Federal | AWOS-3 |
| 74 | AEG | Double Eagle II | Albuquerque | NM | Non-Federal | AWOS-3 |
| 75 | AEL | Albert Lea Muni | Albert Lea | MN | Non-Federal | AWOS-3 |
| 76 | AFE | Kake | Kake | AK | Federal | AWOS-3 |
| 77 | AFJ | Washington County | Washington | PA | Federal | AWOS-3 |
| 78 | AFK | Nebraska City Muni | Nebraska City | NE | Non-Federal | AWOS-3P/T |
| 79 | AFM | Ambler | Ambler | AK | Federal | AWOS-3 |
| 80 | AFO | Afton Muni | Afton | WY | Non-Federal | AWOS-3 |
| 81 | AID | Anderson Muni-Darlington Field | Anderson | IN | Non-Federal | AWOS-3 |
| 82 | AIG | Langlade County | Antigo | WI | Non-Federal | AWOS-3 |
| 83 | AIK | Aiken Muni | Aiken | SC | Non-Federal | AWOS-3 |
| 84 | AIO | Atlantic Muni | Atlantic | IA | Non-Federal | AWOS-3 |
| 85 | AIT | Aitkin Muni-Steve Kurtz Field | Aitkin | MN | Non-Federal | AWOS-3 |
| 86 | AIZ | Lee C Fine Memorial | Kaiser Lake Ozark | MO | Federal | AWOS-3 |
| 87 | AJC | Chignik | Chignik | AK | Federal | AWOS-3 |
| 88 | AJG | Mount Carmel Muni | Mount Carmel | IL | Non-Federal | AWOS-3P/T |
| 89 | AKA | Atka | Atka | AK | Federal | AWOS-3 |
| 90 | AKP | Anaktuvuk Pass | Anaktuvuk Pass | AK | Federal | AWOS-3 |
| 91 | ALM | Alamogordo-White Sands Regional | Alamogordo | NM | Non-Federal | AWOS-3 |
| 92 | ALN | St Louis Regional | Alton/St Louis | IL | Non-Federal | AWOS-3P/T |
| 93 | ALX | Thomas C Russell Field | Alexander City | AL | Non-Federal | AWOS-3 |
| 94 | AMN | Gratiot Community | Alma | MI | Non-Federal | AWOS-3 |
| 95 | ANE | Anoka County-Blaine (Janes Field) | Minneapolis | MN | Non-Federal | AWOS-3 |
| 96 | ANI | Aniak | Aniak | AK | Federal | AWOS-3 |
| 97 | ANK | Harriet Alexander Field | Salida | CO | Non-Federal | AWOS-3 |
| 98 | ANV | Anvik | Anvik | AK | Federal | AWOS-3 |
| 99 | ANW | Ainsworth Muni | Ainsworth | NE | Non-Federal | AWOS-3 |
| 100 | AQO | Llano Muni | Llano | TX | Non-Federal | AWOS-3P/T |
| 101 | AQP | Appleton Muni | Appleton | MN | Non-Federal | AWOS-3 |
| 102 | AQR | Atoka Muni | Atoka | OK | Non-Federal | AWOS-3P/T |
| 103 | ARC | Arctic Village | Arctic Village | AK | Federal | AWOS-3 |
| 104 | ARG | Walnut Ridge Regional | Walnut Ridge | AR | Federal | AWOS-3 |
| 105 | ARM | Wharton Regional | Wharton | TX | Non-Federal | AWOS-3P/T |
| 106 | ARV | Lakeland/Noble F. Lee Memorial Field | Minocqua/Woodruff | WI | Non-Federal | AWOS-3 |
| 107 | ASG | Springdale Muni | Springdale | AR | Non-Federal | AWOS-3 |
| 108 | ASJ | Tri-County | Ahoskie | NC | Non-Federal | AWOS-3 |
| 109 | ASL | Harrison County | Marshall | TX | Non-Federal | AWOS-3 |
| 110 | ASN | Talladega Muni | Talladega | AL | Non-Federal | AWOS-3P/T |
| 111 | ASW | Warsaw Muni | Warsaw | IN | Non-Federal | AWOS-3 |
| 112 | ATS | Artesia Muni | Artesia | NM | Non-Federal | AWOS-3 |
| 113 | ATW | Outagamie County Regional | Appleton | WI | Non-Federal | AWOS-3 |
| 114 | AUH | Aurora Muni | Aurora | NE | Non-Federal | AWOS-3 |
| 115 | AUM | Austin Muni | Austin | MN | Non-Federal | AWOS-3 |
| 116 | AUN | Auburn Muni | Auburn | CA | Non-Federal | AWOS-3 |
| 117 | AUO | Auburn-Opelika Robert G. Pitts | Auburn | AL | Federal | AWOS-3 |
| 118 | AVC | Mecklenburg-Brunswick Regional | South Hill | VA | Non-Federal | AWOS-3 |
| 119 | AVK | Alva Regional | Alva | OK | Non-Federal | AWOS-3P/T |
| 120 | AVQ | Marana Northwest Regional | Marana | AZ | Non-Federal | III |
| 121 | AWG | Washington Muni | Washington | IA | Non-Federal | AWOS-3 |
| 122 | AWO | Arlington Muni | Arlington | WA | Federal | AWOS-3 |
| 123 | AXA | Algona Muni | Algona | IA | Non-Federal | AWOS-3 |
| 124 | AXQ | Clarion County | Clarion | PA | Non-Federal | AWOS-3P |
| 125 | AXS | Altus/Quartz Mountain Regional | Altus | OK | Non-Federal | AWOS-3P/T |
| 126 | AXV | Neil Armstrong | Wapakoneta | OH | Non-Federal | AWOS-3 |
| 127 | AXX | Angel Fire | Angel Fire | NM | Non-Federal | AWOS-3P |
| 128 | AYS | Waycross-Ware County | Waycross | GA | Non-Federal | AWOS-3 |
| 129 | AZC | Colorado City Muni | Colorado City | AZ | Non-Federal | AWOS-3 |
| 130 | AZK | Skelton | Eureka | AK | Federal | AWOS-3 |
| 131 | BAK | Columbus Muni | Columbus | IN | Non-Federal | AWOS-3 |
| 132 | BAM | Battle Mountain | Battle Mountain | NV | Non-Federal | AWOS-3 |
| 133 | BAX | Huron County Memorial | Bad Axe | MI | Non-Federal | AWOS-3 |
| 134 | BBB | Benson Muni | Benson | MN | Non-Federal | AWOS-3 |
| 135 | BBP | Marlboro County Jetport - H E Avent Field | Bennettsville | SC | Non-Federal | AWOS-3P/T |
| 136 | BCB | Virginia Tech | Blacksburg | VA | Non-Federal | AWOS-3 |
| 137 | BCV | Birchwood | Birchwood | AK | Federal | AWOS-3 |
| 138 | BFR | Virgil I Grissom Muni | Bedford | IN | Non-Federal | AWOS-3P/T |
| 139 | BFW | Silver Bay Muni | Silver Bay | MN | Non-Federal | AWOS-3 |
| 140 | BGE | Decatur Country Industrial Air Park | Bainbridge | GA | Non-Federal | AWOS-3 |
| 141 | BHB | Hancock County-Bar Harbor | Bar Harbor | ME | Federal | AWOS-3 |
| 142 | BID | Block Island State | Block Island | RI | Federal | AWOS-3 |
| 143 | BIE | Beatrice Muni | Beatrice | NE | Non-Federal | AWOS-3 |
| 144 | BIH | Bishop | Bishop | CA | Non-Federal | AWOS-3 |
| 145 | BIJ | Early County | Blakely | GA | Non-Federal | AWOS-3P/T |
| 146 | BJC | Jeffco | Denver | CO | Non-Federal | AWOS-3P/T |
| 147 | BJI | Bemidji-Beltrami County | Bemidji | MN | Federal | AWOS-3 |
| 148 | BKS | Brooks County | Falfurrias | TX | Non-Federal | AWOS-3 |
| 149 | BKX | Brookings Muni | Brookings | SD | Federal | AWOS-3 |
| 150 | BLM | Allaire | Belmar/Farmingdale | NJ | Federal | AWOS-3 |
| 151 | BNL | Barnwell County | Barnwell | SC | Non-Federal | AWOS-3 |
| 152 | BNW | Boone Muni | Boone | IA | Non-Federal | AWOS-3 |
| 153 | BOW | Bartow Muni | Bartow | FL | Non-Federal | AWOS-3 |
| 154 | BPG | Big Spring Mc Mahon-Wrinkle | Big Spring | TX | Non-Federal | AWOS-3 |
| 155 | BPP | Bowman Muni | Bowman | ND | Non-Federal | AWOS-3 |
| 156 | BQK | Brunswick Golden Isles | Brunswick | GA | Non-Federal | AWOS-3 |
| 157 | BRY | Samuels Field | Bardstown | KY | Non-Federal | AWOS-3 |
| 158 | BTP | Butler County/K W Scholter Field | Butler | PA | Federal | AWOS-3 |
| 159 | BUU | Burlington Muni | Burlington | WI | Non-Federal | AWOS-3 |
| 160 | BVK | Buckland | Buckland | AK | Federal | AWOS-3 |
| 161 | BVN | Albion Muni | Albion | NE | Non-Federal | AWOS-3P/T |
| 162 | BVS | Skagit Regional | Burlington/Mount Vernon | WA | Non-Federal | AWOS-3 |
| 163 | BVX | Batesville Regional | Batesville | AR | Federal | AWOS-3 |
| 164 | BWP | Harry Stern | Wahpeton | ND | Non-Federal | AWOS-3 |
| 165 | BXA | George R Carr Memorial Air Field | Bogalusa | LA | Non-Federal | AWOS-1 |
| 166 | BYY | Bay City Muni | Bay City | TX | Non-Federal | AWOS-3P |
| 167 | C09 | Morris Muni-James R Washburn Field | Morris | IL | Non-Federal | AWOS-3 |
| 168 | C62 | Kendallville Muni | Kendallville | IN | Non-Federal | AWOS-3P |
| 169 | C75 | Marshall County | Lacon | IL | Non-Federal | AWOS-3 |
| 170 | C80 | New Coalinga Muni | Coalinga | CA | Non-Federal | AWOS-3 |
| 171 | C83 | Byron | Byron | CA | Non-Federal | AWOS-3 |
| 172 | CAD | Wexford County | Cadillac | MI | Non-Federal | AWOS-3 |
| 173 | CAV | Clarion Muni | Clarion | IA | Non-Federal | AWOS-3 |
| 174 | CBE | Greater Cumberland Regional | Cumberland | MD | Non-Federal | AWOS-3 |
| 175 | CBF | Council Bluffs Muni | Council Bluffs | IA | Non-Federal | AWOS-3 |
| 176 | CBG | Cambridge Muni | Cambridge | MN | Non-Federal | AWOS-3 |
| 177 | CBK | Shaltz Field | Colby | KS | Non-Federal | AWOS-3 |
| 178 | CCO | Newnan Coweta County | Newnan | GA | Non-Federal | AWOS-3 |
| 179 | CCY | Charles City Muni | Charles City | IA | Non-Federal | AWOS-3 |
| 180 | CDD | Scotts SPB | Crane Lake | MN | Non-Federal | AWOS-3 |
| 181 | CDI | Cambridge Muni | Cambridge | OH | Non-Federal | AWOS-3 |
| 182 | CDN | Woodward Field | Camden | SC | Non-Federal | AWOS-3 |
| 183 | CEV | Mettel Field | Connersville | IN | Non-Federal | AWOS-3 |
| 184 | CEY | Kyle-Oakley Field | Murray | KY | Non-Federal | AWOS-3 |
| 185 | CFE | Buffalo Muni | Buffalo | MN | Non-Federal | AWOS-3P/T |
| 186 | CFS | Tuscola Area | Caro | MI | Non-Federal | AWOS-3P/T |
| 187 | CGE | Cambridge-Dorchester | Cambridge | MD | Non-Federal | AWOS-3 |
| 188 | CGF | Cuyahoga County | Cleveland | OH | Non-Federal | AWOS-3P/T |
| 189 | CGS | College Park | College Park | MD | Non-Federal | AWOS-3 |
| 190 | CGZ | Casa Grande Muni | Casa Grande | AZ | Federal | AWOS-3 |
| 191 | CHD | Chandler Muni | Chandler | AZ | Non-Federal | AWOS-3 |
| 192 | CHK | Chickasha Muni | Chickasha | OK | Non-Federal | AWOS-3 |
| 193 | CIC | Chico Muni | Chico | CA | Non-Federal | AWOS-3 |
| 194 | CIN | Arthur N Neu | Carroll | IA | Non-Federal | AWOS-3 |
| 195 | CIR | Cairo Regional | Cairo | IL | Non-Federal | AWOS-3P/T |
| 196 | CIU | Chippewa County Intl | Sault Ste. Marie | MI | Federal | AWOS-3 |
| 197 | CJR | Culpeper Regional | Culpeper | VA | Non-Federal | AWOS-3 |
| 198 | CKC | Grand Marais/Cook County | Grand Marais | MN | Non-Federal | AWOS-3 |
| 199 | CKF | Crisp County-Cordele | Cordele | GA | Non-Federal | AWOS-3 |
| 200 | CKM | Fletcher Field | Clarksdale | MS | Non-Federal | AWOS-3 |
| 201 | CKN | Crookston Muni Kirkwood Field | Crookston | MN | Non-Federal | AWOS-3 |
| 202 | CKP | Cherokee Muni | Cherokee | IA | Non-Federal | AWOS-3P/T |
| 203 | CLI | Clintonville Muni | Clintonville | WI | Non-Federal | AWOS-3 |
| 204 | CLK | Clinton Muni | Clinton | OK | Non-Federal | AWOS-3P/T |
| 205 | CMR | H A Clark Memorial Field | Williams | AZ | Non-Federal | AWOS-3 |
| 206 | CMY | Sparta/Fort Mc Coy | Sparta | WI | Non-Federal | AWOS-3 |
| 207 | CNC | Chariton Muni | Chariton | IA | Non-Federal | AWOS-3 |
| 208 | CNW | TSTC Waco | Waco | TX | Non-Federal | AWOS-3 |
| 209 | COD | Yellowstone Regional | Cody | WY | Federal | AWOS-3 |
| 210 | COE | Coeur D'Alene Air Terminal | Coeur D'Alene | ID | Federal | AWOS-3 |
| 211 | COI | Merritt Island | Merritt Island | FL | Non-Federal | AWOS-3P/T |
| 212 | COQ | Cloquet Carlton County | Cloquet | MN | Non-Federal | AWOS-3 |
| 213 | CPC | Columbus County Muni | Whiteville | NC | Non-Federal | AWOS-3 |
| 214 | CPK | Chesapeake Regional | Norfolk | VA | Non-Federal | AWOS-3 |
| 215 | CPT | Cleburne Muni | Cleburne | TX | Non-Federal | AWOS-3P/T |
| 216 | CPU | Calaveras County-Maury Rasmussen Field | San Andreas | CA | Non-Federal | AWOS-3 |
| 217 | CQB | Chandler Muni | Chandler | OK | Non-Federal | AWOS-3P/T |
| 218 | CQM | Cook Muni | Cook | MN | Non-Federal | AWOS-3 |
| 219 | CQW | Cheraw Muni/Lynch Bellinger Field | Cheraw | SC | Non-Federal | AWOS-3P/T |
| 220 | CSQ | Creston Muni | Creston | IA | Non-Federal | AWOS-3 |
| 221 | CTJ | West Georgia Regional-O V Gray Field | Carrollton | GA | Non-Federal | AWOS-3 |
| 222 | CTZ | Sampson County | Clinton | NC | Non-Federal | AWOS-3 |
| 223 | CUH | Cushing Muni | Cushing | OK | Non-Federal | AWOS-3P/T |
| 224 | CUL | Carmi Muni | Carmi | IL | Non-Federal | AWOS-3P/T |
| 225 | CVN | Clovis Muni | Clovis | NM | Federal | AWOS-3 |
| 226 | CVO | Corvallis Muni | Corvallis | OR | Federal | AWOS-3 |
| 227 | CVX | Charlevoix Muni | Charlevoix | MI | Non-Federal | AWOS-3 |
| 228 | CWA | Central Wisconsin | Mosinee | WI | Non-Federal | AWOS-3 |
| 229 | CWF | Chennault Intl | Lake Charles | LA | Non-Federal | AWOS-3 |
| 230 | CWI | Clinton Muni | Clinton | IA | Federal | AWOS-3 |
| 231 | CXU | Camilla-Mitchell County | Camilla | GA | Non-Federal | AWOS-A |
| 232 | CZG | Tri-Cities | Endicott | NY | Non-Federal | AWOS-3 |
| 233 | D38 | Canandaigua | Canandaigua | NY | Non-Federal | AWOS-3P |
| 234 | DBN | W H 'Bud' Barron | Dublin | GA | Non-Federal | AWOS-3 |
| 235 | DED | Deland Muni-Sidney H Taylor Field | Deland | FL | Non-Federal | AWOS-3 |
| 236 | DEH | Decorah Muni | Decorah | IA | Non-Federal | AWOS-3 |
| 237 | DKB | De Kalb Taylor Muni | De Kalb | IL | Non-Federal | AWOS-3 |
| 238 | DKR | Houston County | Crockett | TX | Non-Federal | AWOS-2P/T |
| 239 | DLG | Dillingham | Dillingham | AK | Federal | AWOS-3 |
| 240 | DLL | Baraboo Wisconsin Dells | Baraboo | WI | Non-Federal | AWOS-3 |
| 241 | DLO | Delano Muni | Delano | CA | Non-Federal | AWOS-3 |
| 242 | DLZ | Delaware Muni | Delaware | OH | Non-Federal | AWOS-3P/T |
| 243 | DMW | Carroll County Regional/Jack B Poage Field | Westminster | MD | Non-Federal | AWOS-3 |
| 244 | DNN | Dalton Muni | Dalton | GA | Non-Federal | AWOS-3 |
| 245 | DNS | Denison Muni | Denison | IA | Non-Federal | AWOS-3 |
| 246 | DNV | Vermilion County | Danville | IL | Non-Federal | AWOS-3 |
| 247 | DPL | Duplin County | Kenansville | NC | Non-Federal | AWOS-3 |
| 248 | DQH | Douglas Muni | Douglas | GA | Non-Federal | AWOS-3 |
| 249 | DRI | Beauregard Parish | De Ridder | LA | Non-Federal | AWOS-3P/T |
| 250 | DRI | De Ridder | LA | Non-Federal | AWOS-3P/T | |
| 251 | DTA | Delta Muni | Delta | UT | Non-Federal | AWOS-3 |
| 252 | DTL | Detroit Lakes-Wething Field | Detroit Lakes | MN | Non-Federal | AWOS-3 |
| 253 | DUA | Eaker Field | Durant | OK | Non-Federal | AWOS-3 |
| 254 | DUC | Halliburton Field | Duncan | OK | Non-Federal | AWOS-3 |
| 255 | DUH | Toledo Suburban | Lambertville | MI | Non-Federal | AWOS-3 |
| 256 | DUT | Unalaska | Unalaska | AK | Federal | AWOS-3 |
| 257 | DUX | Moore County | Dumas | TX | Non-Federal | AWOS-3P |
| 258 | DVK | Stuart Powell Field | Danville | KY | Non-Federal | AWOS-3 |
| 259 | DVL | Devils Lake Muni | Devils Lake | ND | Federal | AWOS-3 |
| 260 | DVO | Gnoss Field | Novato | CA | Non-Federal | AWOS-3P |
| 261 | DWU | Ashland-Boyd County | Ashland | KY | Federal | AWOS-3 |
| 262 | DYB | Summerville | Summerville | SC | Non-Federal | AWOS-3 |
| 263 | DYR | Dyersburg Muni | Dyersburg | TN | Federal | AWOS-3 |
| 264 | DYT | Sky Harbor | Duluth | MN | Non-Federal | AWOS-3 |
| 265 | E38 | Alpine-Casparis Muni | Alpine | TX | Non-Federal | AWOS-3 |
| 266 | EAR | Kearney Muni | Kearney | NE | Federal | AWOS-3 |
| 267 | EBG | Edinburg Intl | Edinburg | TX | Non-Federal | AWOS-3P/T |
| 268 | EBS | Webster City Muni | Webster City | IA | Non-Federal | AWOS-3 |
| 269 | ECS | Mondell Field | Newcastle | WY | Non-Federal | AWOS-3 |
| 270 | EDE | Northeastern Regional | Edenton | NC | Non-Federal | AWOS-3 |
| 271 | EEN | Dillant-Hopkins | Keene | NH | Federal | AWOS-3 |
| 272 | EFK | Newport State | Newport | VT | Non-Federal | AWOS-3P |
| 273 | EFT | Monroe Muni | Monroe | WI | Non-Federal | AWOS-3 |
| 274 | EGE | Eagle County Regional | Eagle | CO | Federal | AWOS-3 |
| 275 | EGT | Wellington Muni | Wellington | KS | Non-Federal | AWOS-3P |
| 276 | EGV | Eagle River Union | Eagle River | WI | Non-Federal | AWOS-3 |
| 277 | EHA | Elkhart-Morton County | Elkhart | KS | Non-Federal | AWOS-3 |
| 278 | EHO | Shelby Muni | Shelby | NC | Non-Federal | AWOS-3P |
| 279 | EHR | Henderson City-County | Henderson | KY | Federal | AWOS-3 |
| 280 | EII | Egegik | Egegik | AK | Federal | AWOS-3 |
| 281 | EKM | Elkhart Muni | Elkhart | IN | Non-Federal | AWOS-3 |
| 282 | EKY | Bessemer | Bessemer | AL | Federal | AWOS-3 |
| 283 | ELK | Elk City Muni | Elk City | OK | Non-Federal | AWOS-3P/T |
| 284 | ELO | Ely Muni | Ely | MN | Non-Federal | AWOS-3 |
| 285 | EMM | Kemmerer Muni | Kemmerer | WY | Non-Federal | AWOS-3 |
| 286 | EMV | Emporia-Greensville Regional | Emporia | VA | Non-Federal | AWOS-3 |
| 287 | ENL | Centralia Muni | Centralia | IL | Non-Federal | AWOS-3 |
| 288 | ENM | Emmonak | Emmonak | AK | Federal | AWOS-3 |
| 289 | ENV | Wendover | Wendover | UT | Federal | AWOS-3 |
| 290 | EOK | Keokuk Muni | Keokuk | IA | Non-Federal | AWOS-3 |
| 291 | EPM | Eastport Muni | Eastport | ME | Non-Federal | AWOS-A |
| 292 | ERV | Kerrville Muni/Louis Schreiner Field | Kerrville | TX | Non-Federal | AWOS-3 |
| 293 | ERY | Luce County | Newberry | MI | Non-Federal | AWOS-3 |
| 294 | ESC | Delta County | Escanaba | MI | Federal | AWOS-3 |
| 295 | ESN | Easton/Newnam Field | Easton | MD | Non-Federal | AWOS-3 |
| 296 | ETB | West Bend Muni | West Bend | WI | Non-Federal | AWOS-3 |
| 297 | ETH | Wheaton Muni | Wheaton | MN | Non-Federal | AWOS-3 |
| 298 | EUL | Caldwell Industrial | Caldwell | ID | Federal | AWOS-3 |
| 299 | EVM | Eveleth-Virginia Muni | Eveleth | MN | Non-Federal | AWOS-3 |
| 300 | EVU | Maryville Memorial | Maryville | MO | Non-Federal | AWOS-3P/T |
| 301 | EWK | Newton-City-County | Newton | KS | Federal | AWOS-3 |
| 302 | EXX | Davidson County | Lexington | NC | Non-Federal | AWOS-3 |
| 303 | EYF | Elizabethtown | Elizabethtown | NC | Non-Federal | AWOS-3P |
| 304 | EZF | Shannon | Fredericksburg | VA | Non-Federal | AWOS-3 |
| 305 | EZM | Heart of Georgia Regional | Eastman | GA | Non-Federal | AWOS-3 |
| 306 | F05 | Wilbarger County | Vernon | TX | Non-Federal | AWOS-3 |
| 307 | F70 | French Valley | Murietta/Temecula | CA | Non-Federal | AWOS-3 |
| 308 | FAM | Farmington Regional | Farmington | MO | Federal | AWOS-3 |
| 309 | FBL | Faribault Muni | Faribault | MN | Non-Federal | AWOS-3 |
| 310 | FBR | Fort Bridger | Fort Bridger | WY | Non-Federal | AWOS-2 |
| 311 | FCH | Fresno-Chandler Downtown | Fresno | CA | Non-Federal | AWOS-3 |
| 312 | FCI | Chesterfield County | Richmond | VA | Federal | AWOS-3 |
| 313 | FDK | Frederick Muni | Frederick | MD | Non-Federal | AWOS-3 |
| 314 | FDW | Fairfield County | Winnsboro | SC | Non-Federal | AWOS-3 |
| 315 | FEP | Albertus | Freeport | IL | Non-Federal | AWOS-3 |
| 316 | FET | Fremont Muni | Fremont | NE | Non-Federal | AWOS-3 |
| 317 | FFA | First Flight | Kill Devil Hills | NC | Non-Federal | AWOS-3P |
| 318 | FFL | Fairfield Muni | Fairfield | IA | Non-Federal | AWOS-3 |
| 319 | FFM | Fergus Falls Muni-Einar Mickelson Field | Fergus Falls | MN | Non-Federal | AWOS-3 |
| 320 | FGN | Non-airport -- AWOS | Flag Island | MN | Non-Federal | AWOS-3 |
| 321 | FKA | Fillmore County | Preston | MN | Non-Federal | AWOS-3 |
| 322 | FKL | Venango Regional | Franklin | PA | Federal | AWOS-3 |
| 323 | FKN | Franklin Muni-John Beverly Rose | Franklin | VA | Non-Federal | AWOS-3 |
| 324 | FKR | Frankfort Muni | Frankfort | IN | Non-Federal | AWOS-3 |
| 325 | FKS | Frankfort Dow Memorial Field | Frankfort | MI | Non-Federal | AWOS-3P |
| 326 | FLP | Marion County Regional | Flippin | AR | Federal | AWOS-3 |
| 327 | FME | Tipton | Fort Meade (Odenton) | MD | Non-Federal | AWOS-3 |
| 328 | FMM | Fort Morgan Muni | Fort Morgan | CO | Non-Federal | AWOS-3P/T |
| 329 | FNL | Fort Collins-Loveland Muni | Fort Collins/Loveland | CO | Federal | AWOS-3 |
| 330 | FOA | Flora Muni | Flora | IL | Non-Federal | AWOS-3 |
| 331 | FOD | Fort Dodge Regional | Fort Dodge | IA | Federal | AWOS-3 |
| 332 | FOZ | Bigfork Muni | Bigfork | MN | Non-Federal | AWOS-3 |
| 333 | FPK | Fitch H Beach | Charlotte | MI | Non-Federal | AWOS-3 |
| 334 | FQD | Rutherford County-Marchman Field | Rutherforton | NC | Non-Federal | AWOS-3 |
| 335 | FRH | French Lick Muni | French Lick | IN | Non-Federal | AWOS-3 |
| 336 | FRM | Fairmont Muni | Fairmont | MN | Federal | AWOS-3 |
| 337 | FSE | Fosston Muni | Fosston | MN | Non-Federal | AWOS-3 |
| 338 | FSO | Franklin County State | Highgate | VT | Non-Federal | AWOS-3P |
| 339 | FSW | Fort Madison Muni | Fort Madison | IA | Non-Federal | AWOS-3 |
| 340 | FTG | Front Range | Denver | CO | Non-Federal | AWOS-3 |
| 341 | FVX | Farmville Regional | Farmville | VA | Non-Federal | AWOS-3 |
| 342 | FWC | Fairfield Muni | Fairfield | IL | Non-Federal | AWOS-3 |
| 343 | FWS | Fort Worth Spinks | Fort Worth | TX | Non-Federal | AWOS-3P/T |
| 344 | FYJ | Middle Peninsula Regional | West Point | VA | Non-Federal | AWOS-3 |
| 345 | FYU | Fort Yukon | Fort Yukon | AK | Federal | AWOS-3 |
| 346 | FZG | Fitzgerald Muni | Fitzgerald | GA | Non-Federal | AWOS-3 |
| 347 | FZI | Fostoria Metropolitan | Fostoria | OH | Non-Federal | AWOS-3P/T |
| 348 | GAD | Gadsden Muni | Gadsden | AL | Federal | AWOS-3 |
| 349 | GAI | Montgomery County Airpark | Gaithersburg | MD | Federal | AWOS-3 |
| 350 | GAM | Gambell | Gambell | AK | Federal | AWOS-3 |
| 351 | GAO | South Lafourche | Galliano | LA | Non-Federal | AWOS-3P |
| 352 | GBD | Great Bend Muni | Great Bend | KS | Federal | AWOS-3 |
| 353 | GBG | Galesburg Muni | Galesburg | IL | Non-Federal | AWOS-3 |
| 354 | GCM | Claremore Regional | Claremore | OK | Non-Federal | AWOS-3P/T |
| 355 | GDJ | Granbury Muni | Granbury | TX | Non-Federal | AWOS-3P/T |
| 356 | GDV | Dawson Community | Glendive | MT | Federal | AWOS-3 |
| 357 | GEU | Glendale Muni | Glendale | AZ | Non-Federal | AWOS-3 |
| 358 | GEV | Ashe County | Jefferson | NC | Non-Federal | AWOS-3 |
| 359 | GGE | Georgetown County | Georgetown | SC | Non-Federal | AWOS-3 |
| 360 | GHW | Glenwood Muni | Glenwood | MN | Non-Federal | AWOS-3 |
| 361 | GLE | Gainesville Muni | Gainesville | TX | Non-Federal | AWOS-3 |
| 362 | GLW | Glasgow Muni | Glasgow | KY | Non-Federal | AWOS-3 |
| 363 | GMJ | Grove Muni | Grove | OK | Non-Federal | AWOS-3P/T |
| 364 | GNB | Granby-Grand County | Granby | CO | Non-Federal | AWOS-1 |
| 365 | GNC | Gaines County | Seminole | TX | Non-Federal | AWOS-3P/T |
| 366 | GNF | Grenada Muni | Grenada | MS | Non-Federal | AWOS-3 |
| 367 | GOP | City-County | Gatesville | TX | Non-Federal | AWOS-3P/T |
| 368 | GOV | Grayling AAF | Grayling | MI | Non-Federal | AWOS-3 |
| 369 | GPM | Grand Prairie Muni | Grand Prairie | TX | Non-Federal | AWOS-3 |
| 370 | GPZ | Grand Rapids/Itasca County-Gordon Newstrom Field | Grand Rapids | MN | Federal | AWOS-3 |
| 371 | GST | Gustavus | Gustavus | AK | Federal | AWOS-3 |
| 372 | GTR | Golden Triangle Regional | Columbus/W Point/Starkville | MS | Federal | AWOS-3 |
| 373 | GTU | Georgetown Muni | Georgetown | TX | Federal | AWOS-3 |
| 374 | GUC | Gunnison County | Gunnison | CO | Federal | AWOS-3 |
| 375 | GVQ | Genesee County | Batavia | NY | Federal | AWOS-3 |
| 376 | GVT | Majors | Greenville | TX | Non-Federal | AWOS-3P/T |
| 377 | GWB | De Kalb County | Auburn | IN | Non-Federal | AWOS-3P/T |
| 378 | GWR | Gwinner-Roger Melroe Field | Gwinner | ND | Non-Federal | AWOS-3 |
| 379 | GWW | Goldsboro-Wayne Muni | Goldsboro | NC | Non-Federal | AWOS-3 |
| 380 | GXY | Greeley-Weld County | Greeley | CO | Federal | AWOS-3 |
| 381 | GYB | Giddings-Lee County | Giddings | TX | Non-Federal | AWOS-3P |
| 382 | GYH | Donaldson Center | Greenville | SC | Non-Federal | AWOS-3 |
| 383 | GYI | Grayson County | Sherman/Denison | TX | Non-Federal | AWOS-3P/T |
| 384 | GYL | Glencoe Muni | Glencoe | MN | Non-Federal | AWOS-3 |
| 385 | GYY | Gary/Chicago | Gary | IN | Non-Federal | AWOS-3 |
| 386 | HAE | Hannibal Muni | Hannibal | MO | Non-Federal | AWOS-3P/T |
| 387 | HAI | Three Rivers Muni Dr Haines | Three Rivers | MI | Non-Federal | AWOS-3P |
| 388 | HBI | Asheboro Muni | Asheboro | NC | Non-Federal | AWOS-3P |
| 389 | HBV | Jim Hogg County | Hebbronville | TX | Non-Federal | AWOS-3P/T |
| 390 | HCD | Hutchinson Munil-Butler Field | Hutchinson | MN | Non-Federal | AWOS-3 |
| 391 | HCO | Hallock Muni | Hallock | MN | Non-Federal | AWOS-3 |
| 392 | HDC | Hammond Muni | Hammond | LA | Non-Federal | AWOS-1 |
| 393 | HDE | Brewster Field | Holdrege | NE | Non-Federal | AWOS-3 |
| 394 | HDN | Yampa Valley | Hayden | CO | Federal | AWOS-3 |
| 395 | HEF | Manassas Regional/Harry P Davis Field | Manassas | VA | Federal | AWOS-3 |
| 396 | HEG | Herlong | Jacksonville | FL | Non-Federal | AWOS-3 |
| 397 | HEQ | Holyoke | Holyoke | CO | Non-Federal | AWOS-3 |
| 398 | HEZ | Hardy-Anders Field Natchez-Adams County | Natchez | MS | Federal | AWOS-3 |
| 399 | HFY | Greenwood Muni | Indianapolis | IN | Non-Federal | AWOS-3 |
| 400 | HHF | Hemphill County | Canadian | TX | Non-Federal | AWOS-3 |
| 401 | HHW | Stan Stamper Muni | Hugo | OK | Non-Federal | AWOS-3 |
| 402 | HII | Lake Havasu City | Lake Havasu City | AZ | Non-Federal | AWOS-3 |
| 403 | HJH | Hebron Muni | Hebron | NE | Non-Federal | AWOS-3P/T |
| 404 | HLA | Huslia | Huslia | AK | Federal | AWOS-3 |
| 405 | HLX | Twin County | Galax Hillsville | VA | Non-Federal | AWOS-3 |
| 406 | HMT | Hemet-Ryan | Hemet | CA | Non-Federal | AWOS-3 |
| 407 | HMZ | Bedford County | Bedford | PA | Non-Federal | AWOS-3 |
| 408 | HNB | Huntingburg | Huntingburg | IN | Federal | AWOS-3 |
| 409 | HNH | Hoonah | Hoonah | AK | Non-Federal | AWOS-3 |
| 410 | HNM | Hana | Hana | HI | Non-Federal | AWOS-3 |
| 411 | HNR | Harlan Muni | Harlan | IA | Non-Federal | AWOS-3 |
| 412 | HNZ | Henderson-Oxford | Oxford | NC | Non-Federal | AWOS-3 |
| 413 | HOC | Highland County | Hillsboro | OH | Non-Federal | AWOS-3 |
| 414 | HPB | Hooper Bay | Hooper Bay | AK | Federal | AWOS-3 |
| 415 | HQG | Hugoton Muni | Hugoton | KS | Non-Federal | AWOS-3 |
| 416 | HQU | Thomson-McDuffie County | Thomson | GA | Non-Federal | AWOS-3 |
| 417 | HQZ | Mesquite Metro | Mesquite | TX | Non-Federal | AWOS-3 |
| 418 | HRJ | Harnett County | Erwin | NC | Non-Federal | AWOS-3P |
| 419 | HSB | Harrisburg-Raleigh | Harrisburg | IL | Non-Federal | AWOS-3 |
| 420 | HSP | Ingalls Field | Hot Springs | VA | Non-Federal | AWOS-3 |
| 421 | HVC | Hopkinsville-Christian County | Hopkinsville | KY | Non-Federal | AWOS-3 |
| 422 | HVS | Hartsville Regional | Hartsville | SC | Non-Federal | AWOS-3 |
| 423 | HXD | Hilton Head | Hilton Head Island | SC | Non-Federal | AWOS-3P |
| 424 | HYG | Hydaburg SPB | Hydaburg | AK | Federal | AWOS-3 |
| 425 | HYI | San Marcos Muni | San Marcos | TX | Federal | AWOS-3 |
| 426 | HYS | Hays Regional | Hays | KS | Federal | AWOS-3 |
| 427 | HYX | Saginaw County H W Browne | Saginaw | MI | Non-Federal | AWOS-3 |
| 428 | HZL | Hazleton Muni | Hazleton | PA | Non-Federal | AWOS-3 |
| 429 | I12 | Sidney Muni | Sidney | OH | Non-Federal | AWOS-3P |
| 430 | I16 | Kee Field | Pineville | WV | Non-Federal | AWOS-3P |
| 431 | I18 | Jackson County | Ravenswood | WV | Non-Federal | AWOS-2 |
| 432 | I19 | Greene County-Lewis A Jackson Regional | Dayton | OH | Non-Federal | AWOS-A |
| 433 | I23 | Fayette County | Washington Court House | OH | Non-Federal | AWOS-3 |
| 434 | I40 | Richard Downing | Coshocton | OH | Non-Federal | AWOS-3P/T |
| 435 | I66 | Clinton Field | Wilmington | OH | Non-Federal | AWOS-3 |
| 436 | I68 | Lebanon-Warren County | Lebanon | OH | Non-Federal | AWOS-3P |
| 437 | I74 | Grimes Field | Urbana | OH | Non-Federal | AWOS-3 |
| 438 | IBM | Kimball Muni/Robert E Arraj Field | Kimball | NE | Non-Federal | AWOS-3P/T |
| 439 | ICL | Schenck Field | Clarinda | IA | Non-Federal | AWOS-3 |
| 440 | IDI | Indiana County/Jimmy Stewart Field | Indiana | PA | Non-Federal | AWOS-3 |
| 441 | IDP | Independence Muni | Independence | KS | Non-Federal | AWOS-3 |
| 442 | IER | Natchitoches Regional | Natchitoches | LA | Non-Federal | AWOS-3 |
| 443 | IGQ | Lansing Muni | Chicago | IL | Non-Federal | AWOS-3 |
| 444 | IIB | Independence Muni | Independence | IA | Non-Federal | AWOS-3 |
| 445 | IIY | Washington-Wilkes County | Washington | GA | Non-Federal | AWOS-3 |
| 446 | IJX | Jacksonville Muni | Jacksonville | IL | Non-Federal | AWOS-3 |
| 447 | IKG | Kleberg County | Kingsville | TX | Non-Federal | AWOS-3P |
| 448 | IKK | Greater Kankakee | Kankakee | IL | Non-Federal | AWOS-3 |
| 449 | IKV | Ankeny Regional | Ankeny | IA | Non-Federal | AWOS-3 |
| 450 | ILE | Killeen Muni | Killeen | TX | Federal | AWOS-3 |
| 451 | ILL | Willmar Muni-John L Rice Field | Willmar | MN | Non-Federal | AWOS-3 |
| 452 | IMM | Immokalee | Immokalee | FL | Non-Federal | AWOS-3 |
| 453 | IMS | Madison Muni | Madison | IN | Non-Federal | AWOS-3 |
| 454 | INJ | Hillsboro Muni | Hillsboro | TX | Non-Federal | AWOS-3P/T |
| 455 | INR | Mc Kinley National Park | Mc Kinley Park | AK | Federal | AWOS-3 |
| 456 | IOB | Mount Sterling-Montgomery County | Mount Sterling | KY | Non-Federal | AWOS-3 |
| 457 | IPJ | Lincolnton-Lincoln County Regional | Lincolnton | NC | Non-Federal | AWOS-3 |
| 458 | IRS | Kirsch Muni | Sturgis | MI | Non-Federal | AWOS-3 |
| 459 | ISM | Kissimmee Muni | Orlando | FL | Federal | AWOS-3 |
| 460 | ISO | Kinston Regional Jetport At Stallings Field | Kinston | NC | Non-Federal | AWOS-3P |
| 461 | ISQ | Schoolcraft County | Manistique | MI | Non-Federal | AWOS-3 |
| 462 | ISZ | Cincinnati-Blue Ash | Cincinnati | OH | Non-Federal | AWOS-A |
| 463 | IWA | Williams Gateway | Phoenix | AZ | Non-Federal | AWOS-3 |
| 464 | IWD | Gogebic-Iron County | Ironwood | MI | Federal | AWOS-3 |
| 465 | IYS | Wasilla | Wasilla | AK | Federal | AWOS-3 |
| 466 | IZA | Santa Ynez | Santa Ynez | CA | Non-Federal | AWOS-3P/T |
| 467 | JAC | Jackson Hole | Jackson | WY | Federal | AWOS-3 |
| 468 | JAS | Jasper County-Bell Field | Jasper | TX | Non-Federal | AWOS-3 |
| 469 | JFX | Walker County-Bevill Field | Jasper | AL | Non-Federal | AWOS-3P/T |
| 470 | JHM | Kapalua | Lahaina | HI | Non-Federal | AWOS-3 |
| 471 | JHW | Chautauqua County/Jamestown | Jamestown | NY | Federal | AWOS-3 |
| 472 | JKA | Jack Edwards | Gulf Shores | AL | Non-Federal | AWOS-3 |
| 473 | JKJ | Moorhead Muni | Moorhead | MN | Non-Federal | AWOS-3 |
| 474 | JMR | Mora Muni | Mora | MN | Non-Federal | AWOS-3 |
| 475 | JNX | Johnston County | Smithfield | NC | Non-Federal | AWOS-3 |
| 476 | JOT | Joliet Regional | Joliet | IL | Non-Federal | AWOS-3 |
| 477 | JRB | Port Authority-Downtown-Manhattan/Wall Street Heliport | New York | NY | Federal | AWOS-3 |
| 478 | JSV | Sallisaw Muni | Sallisaw | OK | Non-Federal | AWOS-3P/T |
| 479 | JVL | Rock County | Janesville | WI | Non-Federal | AWOS-3 |
| 480 | JVY | Clark County | Jeffersonville | IN | Non-Federal | AWOS-3 |
| 481 | JWG | Watonga | Watonga | OK | Non-Federal | AWOS-1 |
| 482 | JWN | John C Tune | Nashville | TN | Non-Federal | AWOS-3 |
| 483 | JWY | Mid-Way Regional | Midlothian/Waxahachie | TX | Non-Federal | AWOS-3P |
| 484 | JXI | Fox Stephens Field-Gilmer Muni | Gilmer | TX | Non-Federal | AWOS-3P/T |
| 485 | JYG | St James Muni | St James | MN | Non-Federal | AWOS-3 |
| 486 | JYL | Plantation Airpark | Sylvania | GA | Non-Federal | AWOS-3P/T |
| 487 | JYM | Hillsdale Muni | Hillsdale | MI | Non-Federal | AWOS-3 |
| 488 | JYO | Leesburg Executive | Leesburg | VA | Non-Federal | AWOS-3 |
| 489 | JYR | York Muni | York | NE | Non-Federal | AWOS-3 |
| 490 | JZI | Charleston Executive | Charleston | SC | Non-Federal | AWOS-3 |
| 491 | JZZ | Koliganek | Koliganek | AK | Non-Federal | AWOS-3 |
| 492 | K20 | Wendell H Ford | Hazard | KY | Non-Federal | AWOS-3 |
| 493 | K22 | Big Sandy Regional | Prestonburg | KY | Non-Federal | AWOS-3 |
| 494 | K82 | Smith Center Muni | Smith Center | KS | Non-Federal | AWOS-3P/T |
| 495 | K88 | Allen County | Iola | KS | Non-Federal | AWOS-3 |
| 496 | KKA | Koyuk | Koyuk | AK | Federal | AWOS-3 |
| 497 | KLS | Kelso-Longview | Kelso | WA | Federal | AWOS-3 |
| 498 | KNB | Kanab Muni | Kanab | UT | Non-Federal | AWOS-3 |
| 499 | KSM | St Mary's | St Mary's | AK | Federal | AWOS-3 |
| 500 | L08 | Borrego Valley | Borrego Springs | CA | Non-Federal | AWOS-1 |
| 501 | L35 | Big Bear City | Big Bear | CA | Non-Federal | AWOS-3 |
| 502 | L71 | California City Muni | California City | CA | Non-Federal | AWOS-3 |
| 503 | LAM | Los Alamos | Los Alamos | NM | Non-Federal | AWOS-3 |
| 504 | LBE | Arnold Palmer Regional | Latrobe | PA | Non-Federal | AWOS-3 |
| 505 | LBL | Liberal Muni | Liberal | KS | Federal | AWOS-3 |
| 506 | LBO | Floyd W. Jones Lebanon | Lebanon | MO | Non-Federal | AWOS-3P/T |
| 507 | LBR | Clarksville-Red River County | Clarksville | TX | Non-Federal | AWOS-3 |
| 508 | LCG | Wayne Muni | Wayne | NE | Non-Federal | AWOS-3P/T |
| 509 | LCI | Laconia Muni | Laconia | NH | Federal | AWOS-3 |
| 510 | LCK | Rickenbacker Intl | Columbus | OH | Non-Federal | AWOS-3 |
| 511 | LDM | Mason County | Ludington | MI | Non-Federal | AWOS-3 |
| 512 | LEW | Auburn/Lewiston Muni | Auburn/Lewiston | ME | Federal | AWOS-3 |
| 513 | LGC | Lagrange-Callaway | Lagrange | GA | Non-Federal | AWOS-3 |
| 514 | LGD | La Grande/Union County | La Grande | OR | Federal | AWOS-3 |
| 515 | LHB | Hearne Muni | Hearne | TX | Non-Federal | AWOS-3P/T |
| 516 | LHM | Lincoln Regional/Karl Harder Field | Lincoln | CA | Non-Federal | AWOS-3 |
| 517 | LJF | Litchfield Muni | Litchfield | MN | Non-Federal | AWOS-3 |
| 518 | LKU | Louisa County/Freeman Field | Louisa | VA | Non-Federal | AWOS-3 |
| 519 | LKV | Lake County | Lakeview | OR | Federal | AWOS-3 |
| 520 | LNC | Lancaster | Lancaster | TX | Non-Federal | AWOS-3P/T |
| 521 | LNL | Kings Land O' Lakes | Land O' Lakes | WI | Non-Federal | AWOS-3P/T |
| 522 | LNP | Lonesome Pine | Wise | VA | Non-Federal | AWOS-3 |
| 523 | LOM | Wings Field | Philadelphia | PA | Non-Federal | AWOS-3 |
| 524 | LOT | Lewis University | Chicago/Romeoville | IL | Non-Federal | AWOS-3 |
| 525 | LPC | Lompoc | Lompoc | CA | Federal | AWOS-3 |
| 526 | LQK | Pickens County | Pickens | SC | Non-Federal | AWOS-3 |
| 527 | LRJ | Le Mars Muni | Le Mars | IA | Non-Federal | AWOS-3 |
| 528 | LRU | Las Cruces Intl | Las Cruces | NM | Non-Federal | AWOS-3 |
| 529 | LRY | Lawrence Smith Memorial | Harrisonville | MO | Non-Federal | AWOS-3P/T |
| 530 | LUD | Decatur Muni | Decatur | TX | Non-Federal | AWOS-3P |
| 531 | LUL | Hesler-Noble Field | Laurel | MS | Non-Federal | AWOS-3 |
| 532 | LUM | Menomonie Muni-Score Field | Menomonie | WI | Non-Federal | AWOS-3P/T |
| 533 | LVN | Airlake | Minneapolis | MN | Non-Federal | AWOS-3 |
| 534 | LWA | South Haven Area Regional | South Haven | MI | Non-Federal | AWOS-3P |
| 535 | LWB | Greenbrier Valley | Lewisburg | WV | Non-Federal | AWOS-3 |
| 536 | LXL | Little Falls-Morrison County-Lindbergh Field | Little Falls | MN | Non-Federal | AWOS-3 |
| 537 | LXN | Jim Kelly Field | Lexington | NE | Non-Federal | AWOS-3 |
| 538 | LYV | Quentin Aanenson Field | Luverne | MN | Non-Federal | AWOS-3P/T |
| 539 | LZU | Gwinnett County-Briscoe Field | Lawrenceville | GA | Federal | AWOS-3 |
| 540 | LZZ | Lampasas | Lampasas | TX | Non-Federal | AWOS-3 |
| 541 | M25 | Mayfield Graves County | Mayfield | KY | Non-Federal | AWOS-3 |
| 542 | M30 | Metropolis Muni | Metropolis | IL | Non-Federal | AWOS-3P/T |
| 543 | M34 | Kentucky Dam State Park | Gilbertsville | KY | Non-Federal | AWOS-3 |
| 544 | M40 | Monroe County | Aberdeen/Amory | MS | Non-Federal | AWOS-3P |
| 545 | M58 | Monett Muni | Monett | MO | Non-Federal | AWOS-3 |
| 546 | MAW | Malden Muni | Malden | MO | Non-Federal | AWOS-3P/T |
| 547 | MBL | Manistee County-Blacker | Manistee | MI | Federal | AWOS-3 |
| 548 | MBO | Bruce Campbell Field | Madison | MS | Non-Federal | AWOS-3P/T |
| 549 | MBY | Omar N Bradley | Moberly | MO | Non-Federal | AWOS-3P/T |
| 550 | MCC | Mc Clellan Airfield | Sacramento | CA | Non-Federal | AWOS-3 |
| 551 | MCD | Mackinac Island | Mackinac Island | MI | Non-Federal | AWOS-3 |
| 552 | MDD | Midland Airpark | Midland | TX | Non-Federal | AWOS-3P/T |
| 553 | MDO | Middleton Island | Middleton Island | AK | Federal | AWOS-3 |
| 554 | MDQ | Madison County Executive | Huntsville | AL | Non-Federal | AWOS-3P/T |
| 555 | MDZ | Taylor County | Medford | WI | Non-Federal | AWOS-3 |
| 556 | MER | Castle | Atwater | CA | Non-Federal | AWOS-3 |
| 557 | MEV | Minden-Tahoe | Minden | NV | Non-Federal | AWOS-3 |
| 558 | MEZ | Mena Intermountain Muni | Mena | AR | Non-Federal | AWOS-3 |
| 559 | MFV | Accomack County | Melfa | VA | Non-Federal | AWOS-3 |
| 560 | MGG | Maple Lake Muni | Maple Lake | MN | Non-Federal | AWOS-3 |
| 561 | MGN | Harbor Springs | Harbor Springs | MI | Non-Federal | AWOS-3 |
| 562 | MGR | Moultrie Muni | Moultrie | GA | Non-Federal | AWOS-3P/T |
| 563 | MHL | Marshall Memorial Muni | Marshall | MO | Non-Federal | AWOS-A |
| 564 | MHM | Minchumina | Minchumina | AK | Federal | AWOS-3 |
| 565 | MHR | Sacramento Mather | Sacramento | CA | Non-Federal | AWOS-3 |
| 566 | MJD | Picayune Muni | Picayune | MS | Non-Federal | AWOS-3P/T |
| 567 | MJQ | Jackson Muni | Jackson | MN | Non-Federal | AWOS-3 |
| 568 | MJX | Robert J. Miller Airpark | Toms River | NJ | Federal | AWOS-3 |
| 569 | MKJ | Mountain Empire | Marion/Wytheville | VA | Non-Federal | AWOS-3 |
| 570 | MKN | Comanche County-City | Comanche | TX | Non-Federal | AWOS-3P/T |
| 571 | MKT | Mankato Regional | Mankato | MN | Federal | AWOS-3 |
| 572 | MKY | Marco Island | Marco Island | FL | Federal | AWOS-3 |
| 573 | MLE | Millard | Omaha | NE | Non-Federal | AWOS-3 |
| 574 | MLJ | Baldwin County | Milledgeville | GA | Non-Federal | AWOS-A |
| 575 | MMH | Mammoth Yosemite | Mammoth Lakes | CA | Non-Federal | AWOS-3 |
| 576 | MML | Marshall Muni-Ryan Field | Marshall | MN | Federal | AWOS-3 |
| 577 | MNM | Menominee-Marinette Twin County | Menominee | MI | Federal | AWOS-3 |
| 578 | MOP | Mount Pleasant Muni | Mount Pleasant | MI | Non-Federal | AWOS-3 |
| 579 | MOX | Morris Muni | Morris | MN | Non-Federal | AWOS-3 |
| 580 | MPE | Philadelphia Muni | Philadelphia | MS | Non-Federal | AWOS-3P/T |
| 581 | MPI | Mariposa-Yosemite | Mariposa | CA | Non-Federal | AWOS-3 |
| 582 | MPR | Mc Pherson | Mc Pherson | KS | Non-Federal | AWOS-3 |
| 583 | MPZ | Mount Pleasant Muni | Mount Pleasant | IA | Non-Federal | AWOS-3 |
| 584 | MQB | Macomb Muni | Macomb | IL | Non-Federal | AWOS-3 |
| 585 | MQI | Dare County Regional | Manteo | NC | Non-Federal | AWOS-3 |
| 586 | MQJ | Mount Comfort | Indianapolis | IN | Non-Federal | AWOS-3 |
| 587 | MRF | Marfa Muni | Marfa | TX | Federal | AWOS-3 |
| 588 | MRJ | Iowa County | Mineral Point | WI | Non-Federal | AWOS-3 |
| 589 | MRN | Morganton-Lenoir | Morganton | NC | Non-Federal | AWOS-3 |
| 590 | MRT | Union County | Marysville | OH | Non-Federal | AWOS-3 |
| 591 | MSV | Sullivan County Intl | Monticello | NY | Federal | AWOS-3 |
| 592 | MTM | Metlakatla SPB | Metlakatla | AK | Federal | AWOS-3 |
| 593 | MTN | Martin State | Baltimore | MD | Non-Federal | AWOS-3 |
| 594 | MTV | Blue Ridge | Martinsville | VA | Non-Federal | AWOS-3 |
| 595 | MTW | Manitowoc County | Manitowoc | WI | Federal | AWOS-3 |
| 596 | MUE | Waimea-Kohala | Kamuela | HI | Non-Federal | AWOS-3 |
| 597 | MUT | Muscatine Muni | Muscatine | IA | Non-Federal | AWOS-3 |
| 598 | MVE | Montevideo-Chippewa County | Montevideo | MN | Non-Federal | AWOS-3 |
| 599 | MVN | Mount Vernon | Mount Vernon | IL | Federal | AWOS-3 |
| 600 | MWA | Williamson County Regional | Marion | IL | Non-Federal | AWOS-3 |
| 601 | MWC | Lawrence J Timmerman | Milwaukee | WI | Non-Federal | AWOS-3P/T |
| 602 | MWK | Mount Airy/Surry County | Mount Airy | NC | Non-Federal | AWOS-3 |
| 603 | MWM | Windom Muni | Windom | MN | Non-Federal | AWOS-3 |
| 604 | MWO | Hook Field Muni | Middletown | OH | Non-Federal | AWOS-3 |
| 605 | MXO | Monticello Regional | Monticello | IA | Non-Federal | AWOS-3 |
| 606 | MYJ | Mexico Memorial | Mexico | MO | Non-Federal | AWOS-3P/T |
| 607 | MYR | Myrtle Beach Intl | Myrtle Beach | SC | Federal | AWOS-3 |
| 608 | MYU | Mekoryuk | Mekoryuk | AK | Federal | AWOS-3 |
| 609 | MZH | Moose Lake Carlton County | Moose Lake | MN | Non-Federal | AWOS-3 |
| 610 | MZZ | Marion Muni | Marion | IN | Non-Federal | AWOS-3 |
| 611 | N03 | Cortland County-Chase Field | Cortland | NY | Non-Federal | AWOS-3 |
| 612 | N23 | Sidney Muni | Sidney | NY | Non-Federal | AWOS-3P |
| 613 | N66 | Oneonta Muni | Oneonta | NY | Non-Federal | AWOS-3P |
| 614 | N70 | Pennridge | Perkasie | PA | Non-Federal | AWOS-3 |
| 615 | N93 | New Golovin | Golovin | AK | Federal | AWOS-3 |
| 616 | NRN | Norton Muni | Norton | KS | Non-Federal | AWOS-3P/T |
| 617 | NVD | Nevada Muni | Nevada | MO | Non-Federal | AWOS-3P/T |
| 618 | O22 | Columbia | Columbia | CA | Non-Federal | AWOS-3 |
| 619 | O26 | Lone Pine | Lone Pine | CA | Non-Federal | AWOS-3 |
| 620 | O70 | Westover Field Amador County | Jackson | CA | Non-Federal | AWOS-3 |
| 621 | OAJ | Albert J Ellis | Jacksonville | NC | Federal | AWOS-3 |
| 622 | OBE | Okeechobee County | Okeechobee | FL | Non-Federal | AWOS-3P/T |
| 623 | OCF | Ocala Regional/Jim Taylor Field | Ocala | FL | Federal | AWOS-3 |
| 624 | OCH | A L Mangham Jr Regional | Nacogdoches | TX | Federal | AWOS-3 |
| 625 | OCW | Warren Field | Washington | NC | Non-Federal | AWOS-3 |
| 626 | OEB | Branch County Memorial | Coldwater | MI | Non-Federal | AWOS-3 |
| 627 | OEL | Oakley Muni | Oakley | KS | Non-Federal | AWOS-3 |
| 628 | OEO | L O Simenstad Muni | Osceola | WI | Non-Federal | AWOS-3 |
| 629 | OGA | Searle Field | Ogallala | NE | Non-Federal | AWOS-3 |
| 630 | OGS | Ogdensburg Intl | Ogdensburg | NY | Non-Federal | AWOS-3P/T |
| 631 | OIC | Lt Warren Eaton | Norwich | NY | Non-Federal | AWOS-3 |
| 632 | OKK | Kokomo Muni | Kokomo | IN | Federal | AWOS-3 |
| 633 | OKM | Okmulgee Regional | Okmulgee | OK | Non-Federal | AWOS-3 |
| 634 | OKV | Winchester Regional | Winchester | VA | Non-Federal | AWOS-3 |
| 635 | OLE | Cattaraugus County-Olean | Olean | NY | Non-Federal | AWOS-3 |
| 636 | OLU | Columbus Muni | Columbus | NE | Federal | AWOS-3 |
| 637 | OLV | Olive Branch | Olive Branch | MS | Non-Federal | AWOS-3 |
| 638 | OLY | Olney-Noble | Olney-Noble | IL | Non-Federal | AWOS-3 |
| 639 | OLZ | Oelwein Muni | Oelwein | IA | Non-Federal | AWOS-3 |
| 640 | OMH | Orange County | Orange | VA | Non-Federal | AWOS-3 |
| 641 | OMN | Ormond Beach Muni | Ormond Beach | FL | Non-Federal | AWOS-3 |
| 642 | ONA | Winona Muni-Max Conrad Field | Winona | MN | Non-Federal | AWOS-3 |
| 643 | ONL | The O'Neill Muni-John L Baker Field | O'Neill | NE | Non-Federal | AWOS-3 |
| 644 | ONP | Newport Muni | Newport | OR | Non-Federal | AWOS-3 |
| 645 | ONX | Currituck County | Currituck | NC | Non-Federal | AWOS-3P |
| 646 | ONZ | Grosse Ile Muni | Detroit/Grosse Ile | MI | Non-Federal | AWOS-3 |
| 647 | OOA | Oskaloosa Muni | Oskaloosa | IA | Non-Federal | AWOS-3P |
| 648 | OPN | Thomaston-Upson County | Thomaston | GA | Non-Federal | AWOS-3 |
| 649 | ORB | Orr Regional | Orr | MN | Non-Federal | AWOS-3 |
| 650 | ORC | Orange City Muni | Orange City | IA | Non-Federal | AWOS-3 |
| 651 | ORG | Orange County | Orange | TX | Non-Federal | AWOS-3P/T |
| 652 | ORS | Orcas Island | Eastsound | WA | Non-Federal | AWOS-3 |
| 653 | OSC | Oscoda-Wurtsmith | Oscoda | MI | Non-Federal | AWOS-3 |
| 654 | OTG | Worthington Muni | Worthington | MN | Federal | AWOS-3 |
| 655 | OTH | North Bend Muni | North Bend | OR | Federal | AWOS-3 |
| 656 | OUN | University Of Oklahoma Westheimer | Norman | OK | Non-Federal | AWOS-3 |
| 657 | OVL | Olivia Regional | Olivia | MN | Non-Federal | AWOS-3 |
| 658 | OVO | North Vernon | North Vernon | IN | Non-Federal | AWOS-3P |
| 659 | OWA | Owatonna Degner Regional | Owatonna | MN | Non-Federal | AWOS-3 |
| 660 | OWX | Putnam County | Ottawa | OH | Non-Federal | AWOS-3P |
| 661 | OXC | Waterbury-Oxford | Oxford | CT | Federal | AWOS-3 |
| 662 | OXV | Knoxville Muni | Knoxville | IA | Non-Federal | AWOS-3 |
| 663 | OYM | St Marys Muni | St Marys | PA | Non-Federal | AWOS-3 |
| 664 | OZW | Livingston County | Howell | MI | Non-Federal | AWOS-3 |
| 665 | P14 | Holbrook Muni | Holbrook | AZ | Non-Federal | AWOS-3 |
| 666 | PAN | Payson | Payson | AZ | Non-Federal | AWOS-3 |
| 667 | PBH | Price County | Phillips | WI | Non-Federal | AWOS-3 |
| 668 | PCM | Plant City Muni | Plant City | FL | Non-Federal | AWOS-3P |
| 669 | PCZ | Waupaca Muni | Waupaca | WI | Non-Federal | AWOS-3P |
| 670 | PDC | Prairie Du Chien Muni | Prairie Du Chien | WI | Non-Federal | AWOS-3 |
| 671 | PEA | Pella Muni | Pella | IA | Non-Federal | AWOS-3 |
| 672 | PEQ | Pecos Muni | Pecos | TX | Non-Federal | AWOS-3P/T |
| 673 | PGV | Pitt-Greenville | Greenville | NC | Non-Federal | AWOS-3 |
| 674 | PHG | Phillipsburg Muni | Phillipsburg | KS | Non-Federal | AWOS-3P/T |
| 675 | PHN | St Clair County Intl | Port Huron | MI | Non-Federal | AWOS-3 |
| 676 | PHO | Point Hope | Point Hope | AK | Federal | AWOS-3 |
| 677 | PIB | Hattiesburg-Laurel Regional | Hattiesburg/Laurel | MS | Federal | AWOS-3 |
| 678 | PIZ | Point Lay LRRS | Point Lay | AK | Non-Federal | AWOS-3 |
| 679 | PKV | Calhoun County | Port Lavaca | TX | Non-Federal | AWOS-3P/T |
| 680 | PLD | Portland Muni | Portland | IN | Non-Federal | AWOS-3 |
| 681 | PMH | Greater Portsmouth Regional | Portsmouth | OH | Non-Federal | AWOS-3 |
| 682 | PMU | Panola County | Batesville | MS | Non-Federal | AWOS-3 |
| 683 | PNA | Ralph Wenz Field | Pinedale | WY | Non-Federal | AWOS-3 |
| 684 | PNM | Princeton Muni | Princeton | MN | Non-Federal | AWOS-3 |
| 685 | PNT | Pontiac Muni | Pontiac | IL | Non-Federal | AWOS-3P |
| 686 | POY | Powell Muni | Powell | WY | Non-Federal | AWOS-3 |
| 687 | PPA | Perry Lefors Field | Pampa | TX | Non-Federal | AWOS-3P/T |
| 688 | PPO | La Porte Muni | La Porte | IN | Non-Federal | AWOS-3P/T |
| 689 | PPQ | Pittsfield Penstone Muni | Pittsfield | IL | Non-Federal | AWOS-3 |
| 690 | PQI | Northern Maine Regional At Presque Isle | Presque Isle | ME | Federal | AWOS-3 |
| 691 | PQN | Pipestone Muni | Pipestone | MN | Non-Federal | AWOS-3 |
| 692 | PRG | Edgar County | Paris | IL | Non-Federal | AWOS-3 |
| 693 | PRX | Cox Field | Paris | TX | Federal | AWOS-3 |
| 694 | PRZ | Portales Muni | Portales | NM | Non-Federal | AWOS-3P/T |
| 695 | PSB | Mid-State | Philipsburg | PA | Non-Federal | AWOS-3 |
| 696 | PSG | Petersburg James C Johnson | Petersburg | AK | Federal | AWOS-3 |
| 697 | PSK | New River Valley | Dublin | VA | Non-Federal | AWOS-3 |
| 698 | PSN | Palestine Muni | Palestine | TX | Non-Federal | AWOS-3 |
| 699 | PTB | Dinwiddie County | Petersburg | VA | Non-Federal | AWOS-3 |
| 700 | PTD | Potsdam Muni/Damon Field | Potsdam | NY | Non-Federal | AWOS-3 |
| 701 | PTH | Port Heiden | Port Heiden | AK | Federal | AWOS-3 |
| 702 | PTN | Harry P Williams Memorial | Patterson | LA | Federal | AWOS-3 |
| 703 | PTS | Atkinson Muni | Pittsburg | KS | Non-Federal | AWOS-3 |
| 704 | PTT | Pratt Industrial | Pratt | KS | Non-Federal | AWOS-3 |
| 705 | PTU | Platinum | Platinum | AK | Non-Federal | AWOS-3 |
| 706 | PTV | Porterville Muni | Porterville | CA | Federal | AWOS-3 |
| 707 | PVC | Provincetown Muni | Provincetown | MA | Federal | AWOS-3 |
| 708 | PVG | Hampton Roads Executive | Norfolk | VA | Federal | AWOS-3 |
| 709 | PVJ | Pauls Valley Muni | Pauls Valley | OK | Non-Federal | AWOS-3P/T |
| 710 | PVU | Provo Muni | Provo | UT | Federal | AWOS-3 |
| 711 | PVW | Hale County | Plainview | TX | Non-Federal | AWOS-3 |
| 712 | PWC | Pine River Regional | Pine River | MN | Non-Federal | AWOS-3 |
| 713 | PWG | Mc Gregor Executive | Waco | TX | Federal | AWOS-3 |
| 714 | PWT | Bremerton National | Bremerton | WA | Federal | AWOS-3 |
| 715 | PXE | Perry-Houston County | Perry | GA | Non-Federal | AWOS-A |
| 716 | PYN | Piedmont Muni | Piedmont | MO | Non-Federal | AWOS-3P/T |
| 717 | PYX | Perryton Ochiltree County | Perryton | TX | Non-Federal | AWOS-3 |
| 718 | PZQ | Presque Isle County | Rogers City | MI | Non-Federal | AWOS-3P |
| 719 | RAW | Warsaw Muni | Warsaw | MO | Non-Federal | AWOS-3P/T |
| 720 | RBO | Nueces County | Robstown | TX | Non-Federal | AWOS-3P/T |
| 721 | RBW | Lowcountry Regional | Walterboro | SC | Non-Federal | AWOS-3 |
| 722 | RCR | Fulton County | Rochester | IN | Non-Federal | AWOS-3 |
| 723 | RCX | Rusk County | Ladysmith | WI | Non-Federal | AWOS-3P/T |
| 724 | RCZ | Rockingham-Hamlet | Rockingham | NC | Non-Federal | AWOS-3P |
| 725 | RDK | Red Oak Muni | Red Oak | IA | Non-Federal | AWOS-3 |
| 726 | RGK | Red Wing Regional | Red Wing | MN | Non-Federal | AWOS-3 |
| 727 | RHP | Andrews-Murphy | Andrews | NC | Non-Federal | AWOS-3P |
| 728 | RID | Richmond Muni | Richmond | IN | Non-Federal | AWOS-3 |
| 729 | RIF | Richfield Muni | Richfield | UT | Non-Federal | AWOS-3 |
| 730 | RKD | Knox County Regional | Rockland | ME | Federal | AWOS-3 |
| 731 | RKR | Robert S Kerr | Poteau | OK | Non-Federal | AWOS-3 |
| 732 | RMG | Richard B Russell | Rome | GA | Non-Federal | AWOS-3 |
| 733 | RMY | Brooks Field | Marshall | MI | Non-Federal | AWOS-3 |
| 734 | RNH | New Richmond Muni | New Richmond | WI | Non-Federal | AWOS-3 |
| 735 | RNP | Owosso Community | Owosso | MI | Non-Federal | AWOS-3P |
| 736 | RNV | Cleveland Muni | Cleveland | MS | Non-Federal | AWOS-3 |
| 737 | ROG | Rogers Municipal-Carter Field | Rogers | AR | Federal | AWOS-3 |
| 738 | ROS | Rush City Regional | Rush City | MN | Non-Federal | AWOS-3 |
| 739 | ROX | Roseau Muni/Rudy Billberg Field | Roseau | MN | Non-Federal | AWOS-3 |
| 740 | RPD | Rice Lake Regional-Carl's Field | Rice Lake | WI | Non-Federal | AWOS-3 |
| 741 | RPH | Graham Muni | Graham | TX | Non-Federal | AWOS-3P |
| 742 | RPJ | Rochelle Muni-Koritz Field | Rochelle | IL | Non-Federal | AWOS-3 |
| 743 | RQB | Roben-Hood | Big Rapids | MI | Non-Federal | AWOS-3 |
| 744 | RQO | El Reno Muni Airpark | El Reno | OK | Non-Federal | AWOS-3P/T |
| 745 | RRL | Merrill Muni | Merrill | WI | Non-Federal | AWOS-3 |
| 746 | RRT | Warroad Intl-Swede Carlson Field | Warroad | MN | Non-Federal | AWOS-3 |
| 747 | RSH | Russian Mission | Russian Mission | AK | Non-Federal | AWOS-3 |
| 748 | RSV | Robinson Muni | Robinson | IL | Non-Federal | AWOS-3P/T |
| 749 | RUQ | Rowan County | Salisbury | NC | Non-Federal | AWOS-3 |
| 750 | RUT | Rutland State | Rutland | VT | Federal | AWOS-3 |
| 751 | RVL | Mifflin County | Reedsville | PA | Non-Federal | AWOS-3 |
| 752 | RYN | Ryan Field | Tucson | AZ | Non-Federal | AWOS-3 |
| 753 | RYV | Watertown Muni | Watertown | WI | Non-Federal | AWOS-3 |
| 754 | RYY | Cobb County-Mc Collum Field | Marietta | GA | Federal | AWOS-3 |
| 755 | RZN | Burnett County | Siren | WI | Non-Federal | AWOS-3 |
| 756 | RZT | Ross County | Chillicothe | OH | Non-Federal | AWOS-3 |
| 757 | S24 | Sandusky County Regional | Fremont | OH | Non-Federal | AWOS-3P/T |
| 758 | S47 | Tillamook | Tillamook | OR | Non-Federal | AWOS-3 |
| 759 | S52 | Methow Valley State | Winthrop | WA | Non-Federal | AWOS-3 |
| 760 | SAA | Shively Field | Saratoga | WY | Non-Federal | AWOS-3P |
| 761 | SAR | Sparta Community-Hunter Field | Sparta | IL | Non-Federal | AWOS-3 |
| 762 | SAW | Sawyer Intl | Marquette | MI | Non-Federal | AWOS-3 |
| 763 | SAZ | Staples Muni | Staples | MN | Non-Federal | AWOS-3 |
| 764 | SBD | San Bernadino Intl | San Bernadino | CA | Non-Federal | AWOS-3 |
| 765 | SBO | Emanuel County | Swainsboro | GA | Non-Federal | AWOS-3 |
| 766 | SBS | Steamboat Springs/Bob Adams Field | Steamboat Springs | CO | Non-Federal | AWOS-3 |
| 767 | SCD | Merkel Field Sylacauga Muni | Sylacauga | AL | Non-Federal | AWOS-3P/T |
| 768 | SCH | Schenectady County | Schenectady | NY | Non-Federal | AWOS-3 |
| 769 | SDA | Shenandoah Muni | Shenandoah | IA | Non-Federal | AWOS-3 |
| 770 | SDP | Sand Point | Sand Point | AK | Federal | AWOS-3 |
| 771 | SDY | Sidney-Richland Muni | Sidney | MT | Federal | AWOS-3 |
| 772 | SEE | Gillespie Field | San Diego/El Cajon | CA | Non-Federal | AWOS-3P |
| 773 | SEF | Sebring Regional | Sebring | FL | Non-Federal | AWOS-3P/T |
| 774 | SEP | Clark Field Muni | Stephenville | TX | Non-Federal | AWOS-3 |
| 775 | SER | Freeman Muni | Seymour | IN | Non-Federal | AWOS-3P/T |
| 776 | SEZ | Sedona | Sedona | AZ | Non-Federal | AWOS-2 |
| 777 | SFM | Sanford Regional | Sanford | ME | Federal | AWOS-3 |
| 778 | SFO | San Francisco Intl | San Francisco | CA | Federal | AWOS-3 |
| 779 | SFQ | Suffolk Muni | Suffolk | VA | Non-Federal | AWOS-3 |
| 780 | SFY | Tri-Township | Savanna | IL | Non-Federal | AWOS-3P/T |
| 781 | SFZ | North Central State | Pawtucket | RI | Federal | AWOS-3 |
| 782 | SGJ | St Augustine | St Augustine | FL | Federal | AWOS-3 |
| 783 | SGS | South St Paul Muni-Richard E Fleming Field | South St Paul | MN | Non-Federal | AWOS-3 |
| 784 | SGT | Stuttgart Muni | Stuttgart | AR | Federal | AWOS-3 |
| 785 | SGU | St George Muni | St George | UT | Federal | AWOS-3 |
| 786 | SHD | Shenandoah Valley Regional | Staunton/Waynesb/Harrisonb | VA | Non-Federal | AWOS-3 |
| 787 | SHH | Shishmaref/New | Shishmaref | AK | Federal | AWOS-3 |
| 788 | SHL | Sheldon Muni | Sheldon | IA | Non-Federal | AWOS-3 |
| 789 | SIK | Sikeston Memorial Muni | Sikeston | MO | Non-Federal | AWOS-3P/T |
| 790 | SJX | Beaver Island | Beaver Island | MI | Non-Federal | AWOS-3 |
| 791 | SKX | Taos Regional | Taos | NM | Federal | AWOS-3 |
| 792 | SLB | Storm Lake Muni | Storm Lake | IA | Non-Federal | AWOS-3 |
| 793 | SLG | Smith Field | Siloam Springs | AR | Federal | AWOS-3 |
| 794 | SLH | Cheboygan City-County | Cheboygan | MI | Non-Federal | AWOS-3 |
| 795 | SLO | Salem-Leckrone | Salem | IL | Non-Federal | AWOS-3 |
| 796 | SLQ | Sleetmute | Sleetmute | AK | Federal | AWOS-3 |
| 797 | SLR | Sulphur Springs Muni | Sulphur Springs | TX | Non-Federal | AWOS-3P/T |
| 798 | SME | Somerset-Pulaski County-J.T. Wilson Field | Somerset | KY | Non-Federal | AWOS-3 |
| 799 | SMN | Lemhi County | Salmon | ID | Federal | AWOS-3 |
| 800 | SMS | Sumter Muni | Sumter | SC | Non-Federal | AWOS-3 |
| 801 | SNC | Chester | Chester | CT | Non-Federal | AWOS-3 |
| 802 | SNK | Winston Field | Snyder | TX | Non-Federal | AWOS-3 |
| 803 | SNL | Shawnee Muni | Shawnee | OK | Non-Federal | AWOS-3 |
| 804 | SOP | Moore County | Pinehurst/Southern Pines | NC | Federal | AWOS-3 |
| 805 | SOW | Show Low Muni | Show Low | AZ | Non-Federal | AWOS-3 |
| 806 | SPA | Spartanburg Downtown Memorial | Spartanburg | SC | Non-Federal | AWOS-3 |
| 807 | SQI | Whiteside Co-Joseph H Bittorf Field | Sterling/Rockfalls | IL | Federal | AWOS-3 |
| 808 | SRE | Seminole Muni | Seminole | OK | Non-Federal | AWOS-3P/T |
| 809 | SRR | Sierra Blanca Regional | Ruidoso | NM | Non-Federal | AWOS-3 |
| 810 | STE | Stevens Point Muni | Stevens Point | WI | Non-Federal | AWOS-3 |
| 811 | STF | George M Bryan | Starkville | MS | Non-Federal | AWOS-3P/T |
| 812 | STK | Sterling Muni | Sterling | CO | Non-Federal | AWOS-3 |
| 813 | SUE | Door County Cherryland | Sturgeon Bay | WI | Federal | AWOS-3 |
| 814 | SUN | Friedman Memorial | Hailey | ID | Non-Federal | AWOS-3P/T |
| 815 | SUT | Brunswick County | Southport | NC | Non-Federal | AWOS-3P |
| 816 | SUW | Richard I Bong | Superior | WI | Non-Federal | AWOS-3 |
| 817 | SVA | Savoonga | Savoonga | AK | Federal | AWOS-3 |
| 818 | SVC | Grant County | Silver City | NM | Non-Federal | AWOS-3 |
| 819 | SVE | Susanville Muni | Susanville | CA | Non-Federal | AWOS-3P |
| 820 | SVH | Statesville Muni | Statesville | NC | Non-Federal | AWOS-3 |
| 821 | SWW | Avenger Field | Sweetwater | TX | Non-Federal | AWOS-3 |
| 822 | SXQ | Soldotna | Soldotna | AK | Federal | AWOS-3 |
| 823 | SZT | Sandpoint | Sandpoint | ID | Non-Federal | AWOS-3 |
| 824 | T65 | Mid Valley | Weslaco | TX | Non-Federal | AWOS-3 |
| 825 | T82 | Gillespie County | Fredericksburg | TX | Non-Federal | AWOS-3 |
| 826 | TAZ | Taylorville Muni | Taylorville | IL | Non-Federal | AWOS-3 |
| 827 | TBR | Statesboro-Bulloch County | Statesboro | GA | Non-Federal | AWOS-3 |
| 828 | TCY | Tracy Muni | Tracy | CA | Non-Federal | AWOS-3 |
| 829 | TDF | Person County | Roxboro | NC | Non-Federal | AWOS-3 |
| 830 | TEW | Mason Jewett Field | Mason | MI | Non-Federal | AWOS-3 |
| 831 | TEX | Telluride Regional | Telluride | CO | Non-Federal | AWOS-3 |
| 832 | TIF | Thomas County | Thedford | NE | Non-Federal | AWOS-3P/T |
| 833 | TIP | Rantoul National Aviation Center-Frank Elliott Field | Rantoul | IL | Non-Federal | AWOS-3 |
| 834 | TKC | Tracy Muni | Tracy | MN | Non-Federal | AWOS-3P/T |
| 835 | TMA | Henry Tift Myers | Tifton | GA | Non-Federal | AWOS-3 |
| 836 | TNU | Newton Muni | Newton | IA | Non-Federal | AWOS-3 |
| 837 | TOB | Dodge Center | Dodge Center | MN | Non-Federal | AWOS-3 |
| 838 | TOG | Togiak | Togiak Village | AK | Federal | AWOS-3 |
| 839 | TPF | Peter O Knight | Tampa | FL | Non-Federal | AWOS-3P |
| 840 | TPL | Draughon-Miller Central Texas Regional | Temple | TX | Federal | AWOS-3 |
| 841 | TQH | Tahlequah Muni | Tahlequah | OK | Non-Federal | AWOS-3P/T |
| 842 | TQK | Scott City Muni | Scott City | KS | Non-Federal | AWOS-3 |
| 843 | TRK | Truckee-Tahoe | Truckee | CA | Non-Federal | AWOS-3 |
| 844 | TTA | Sanford-Lee County Regional | Sanford | NC | Non-Federal | AWOS-3P |
| 845 | TTF | Custer | Monroe | MI | Non-Federal | AWOS-3 |
| 846 | TVF | Thief River Falls Regional | Thief River Falls | MN | Federal | AWOS-3 |
| 847 | TVI | Thomasville Muni | Thomasville | GA | Non-Federal | AWOS-3 |
| 848 | TVY | Bolinder Field-Tooele Valley | Tooele | UT | Non-Federal | AWOS-3P/T |
| 849 | TWM | Richard B Helgeson | Two Harbors | MN | Non-Federal | AWOS-3 |
| 850 | TYL | Taylor | Taylor | AZ | Non-Federal | AWOS-3 |
| 851 | TYQ | Indianapolis Terry | Indianapolis | IN | Non-Federal | AWOS-3P/T |
| 852 | TZR | Bolton Field | Columbus | OH | Non-Federal | AWOS-3 |
| 853 | U25 | Dubois Muni | Dubois | WY | Non-Federal | AWOS-3P/T |
| 854 | U42 | Salt Lake City Muni 2 | Salt Lake City | UT | Non-Federal | AWOS-3 |
| 855 | U52 | Beaver Muni | Beaver | UT | Non-Federal | AWOS-3 |
| 856 | U55 | Panguitch Muni | Panguitch | UT | Non-Federal | AWOS-3 |
| 857 | U68 | North Big Horn County | Cowley/Lovell/Byron | WY | Non-Federal | AWOS-3 |
| 858 | U96 | Cal Black Memorial | Halls Crossing | UT | Non-Federal | AWOS-3 |
| 859 | UDG | Darlington County Jetport | Darlington | SC | Federal | AWOS-3 |
| 860 | UES | Waukesha County | Waukesha | WI | Non-Federal | AWOS-3 |
| 861 | UKF | Wilkes County | North Wilkesboro | NC | Non-Federal | AWOS-3 |
| 862 | UKL | Coffey County | Burlington | KS | Non-Federal | AWOS-3P/T |
| 863 | UKT | Quakertown | Quakertown | PA | Non-Federal | AWOS-3 |
| 864 | ULM | New Ulm Muni | New Ulm | MN | Non-Federal | AWOS-3 |
| 865 | ULS | Ulysses | Ulysses | KS | Non-Federal | AWOS-3 |
| 866 | UMP | Indianapolis Metropolitan | Indianapolis | IN | Non-Federal | AWOS-3 |
| 867 | UNI | Ohio University Snyder Field | Athens/Albany | OH | Non-Federal | AWOS-3 |
| 868 | UNK | Unalakleet | Unalakleet | AK | Federal | AWOS-3 |
| 869 | UNU | Dodge County | Juneau | WI | Non-Federal | AWOS-3 |
| 870 | UNV | University Park | State College | PA | Non-Federal | AWOS-3 |
| 871 | UOX | University-Oxford | Oxford | MS | Non-Federal | AWOS-3 |
| 872 | UTA | Tunica Muni | Tunica | MS | Non-Federal | AWOS-3P/T |
| 873 | UUV | Sullivan Regional | Sullivan | MO | Non-Federal | AWOS-3P/T |
| 874 | UVA | Garner Field | Uvalde | TX | Non-Federal | AWOS-3 |
| 875 | VBT | Bentonville Muni/Louise M Thadden Field | Bentonville | AR | Federal | AWOS-3 |
| 876 | VCV | Southern California Logistics | Victorville | CA | Non-Federal | AWOS-3 |
| 877 | VDI | Vidalia Muni | Vidalia | GA | Non-Federal | AWOS-3 |
| 878 | VDZ | Valdez Pioneer Field | Valdez | AK | Federal | AWOS-3 |
| 879 | VIS | Visalia Muni | Visalia | CA | Federal | AWOS-3 |
| 880 | VJI | Virginia Highlands | Abingdon | VA | Non-Federal | AWOS-3 |
| 881 | VLL | Oakland/Troy | Troy | MI | Non-Federal | AWOS-3P |
| 882 | VNC | Venice Muni | Venice | FL | Non-Federal | AWOS-1 |
| 883 | VNW | Van Wert County | Van Wert | OH | Non-Federal | AWOS-3P/T |
| 884 | VTI | Vington Veterans Memorial Airpark | Vinton | IA | Non-Federal | AWOS-3 |
| 885 | VUJ | Stanly County | Albemarle | NC | Non-Federal | AWOS-3 |
| 886 | VVS | Connellsville | Connellsville | PA | Non-Federal | AWOS-3 |
| 887 | VVV | Ortonville Muni-Martinson Field | Ortonville | MN | Non-Federal | AWOS-3 |
| 888 | VWU | Waskish Muni | Waskish | MN | Non-Federal | AWOS-3 |
| 889 | VYS | Illinois Valley Regional-Walter A Duncan Field | Peru | IL | Non-Federal | AWOS-3 |
| 890 | W22 | Upshur County Regional | Buckhannon | WV | Non-Federal | AWOS-3P |
| 891 | W29 | Bay Bridge | Stevensville | MD | Non-Federal | AWOS-3 |
| 892 | W95 | Ocracoke Island | Ocracoke | NC | Non-Federal | AWOS-1 |
| 893 | W99 | Grant County | Petersburg | WV | Non-Federal | AWOS-3 |
| 894 | WDG | Enid Woodring Muni | Enid | OK | Non-Federal | AWOS-3P/T |
| 895 | WDR | Winder-Barrow | Winder | GA | Non-Federal | AWOS-3 |
| 896 | WLK | Selawik | Selawik | AK | Federal | AWOS-3 |
| 897 | WRG | Wrangell | Wrangell | AK | Federal | AWOS-3 |
| 898 | WTK | Noatak | Noatak | AK | Federal | AWOS-3 |
| 899 | WVL | Waterville Robert Lafleur | Waterville | ME | Federal | AWOS-3 |
| 900 | WWD | Cape May County | Wildwood | NJ | Federal | AWOS-3 |
| 901 | WWR | West Woodward | Woodward | OK | Non-Federal | AWOS-3 |
| 902 | X21 | Arthur Dunn Airpark | Titusville | FL | Non-Federal | AWOS-3P/T |
| 903 | X60 | Williston Muni | Williston | FL | Non-Federal | AWOS-3T |
| 904 | XBP | Bridgeport Muni | Bridgeport | TX | Non-Federal | AWOS-3P/T |
| 905 | XVG | Longville Muni | Longville | MN | Non-Federal | AWOS-3 |
| 906 | YKN | Chan Gurney Muni | Yankton | SD | Federal | AWOS-3 |
| 907 | ZER | Schuylkill County/Joe Zerbey | Pottsville | PA | Non-Federal | AWOS-3 |
| 908 | ZPH | Zephyrhills Muni | Zephyrhills | FL | Non-Federal | AWOS-3P/T |