| Code | Name | Region |
|---|---|---|
| USQFY | Fairmont City | IL |
| USAIX | Fairfax | VT |
| USFXS | Fairfax Station | VA |
| USFXO | Fairfax, Hamilton | OH |
| USFFB | Fairfield | AL |
| USSUU | Fairfield | CA |
| USFFI | Fairfield | CT |
| USFGX | Fairfield | GA |
| USFFL | Fairfield | IA |
| USYFL | Fairfield | IL |
| USFAD | Fairfield | IL |
| USYFE | Fairfield | ME |
| US8MT | Fairfield | MT |
| USFDF | Fairfield | NC |
| USFLA | Fairfield | NJ |
| USFFY | Fairfield | NY |
| USFAO | Fairfield | OH |
| USPA5 | Fairfield | PA |
| USFAE | Fairfield | TN |
| USFAX | Fairfield | TX |
| USFFV | Fairfield | VA |
| USFPL | Fair Play | CA |
| USRPY | Fair Play | CO |
| USAIW | Fair View | NJ |
| USFZB | Fairbank | IA |
| USFAI | Fairbanks | AK |
| USFBA | Fairborn | OH |
| USFBN | Fairburn | GA |
| USFIU | Fairburn | SD |
| USFB2 | Fairbury | IL |
| USFBY | Fairbury | NE |
| USF2C | Fairchance | PA |
| USFBS | Fairchild Air Force Base | WA |
| USFIA | Fairdale | KY |
| USFFX | Fairfax | AL |
| USAIF | Fairfax | CA |
| USFFP | Fairfax | IA |
| USFF2 | Fairfax | MN |
| USRFX | Fairfax | MO |
| USFYA | Fairfax | SC |
| USFXX | Fairfax | VA |
| USEXP | Exeter | PA |
| USEXR | Exeter | RI |
| USEXA | Exmore | VA |
| USEPT | Export | PA |
| USEXN | Exton | PA |
| USEYP | Eynon | PA |
| USE3Y | Eyota | MN |
| USFAB | Fabens | TX |
| USFB4 | Faber | VA |