| Code | Name | Region |
|---|---|---|
| GBFOU | Four Ashes | |
| GBFOK | Four Oaks | ESX |
| GBFTO | Fourstones | NBL |
| GBFOY | Fowey | CON |
| GBFRE | Fowlmere | ESX |
| GBFXF | Foxton | LEC |
| GBFLU | Flushing | CON |
| GBFCB | Fochabers | MRY |
| GBFNV | Foinaven | |
| GBFOI | Foindlemore - Loch Glendhu | HLD |
| GBFOL | Folkestone | KEN |
| GBFBP | Fonthill Bishop | WIL |
| GBFWL | Fontwell | WSX |
| GBXFO | Foolow | DBY |
| GBFOH | Ford | STS |
| GBFOD | Ford | WSX |
| GBFDM | Fordham | CAM |
| GBFDH | Fordhouses | WLV |
| GBFGB | Fordingbridge | HAM |
| GBFDU | Fordoun | ABD |
| GBFRG | Forest Gate | NWM |
| GBFOE | Forest Row | WSX |
| GBFSN | Forest Town | NTT |
| GBFOF | Forfar | ANS |
| GB8MR | Forkhill | ARM |
| GBFRM | Formby | SFT |
| GBFPS | Fishponds | BST |
| GBFTW | Fittleworth | WSX |
| GBFOG | Five Oak Green | KEN |
| GBVEM | Fivemiletown | DGN |
| GBFLA | Flackwell Heath | BKM |
| GBFBH | Flamborough | ERY |
| GBFXY | Flaxby | NYK |
| GBFLN | Flaxton | NYK |
| GBFKY | Fleckney | LEC |
| GBFET | Fleet | HAM |
| GBFLE | Fleetwood | LAN |
| GBFBY | Flimby | CMA |
| GBFMW | Flimwell | ESX |
| GBFLI | Flint | FLN |
| GBFLC | Flitwick | CBF |
| GBFLW | Flixborough | NLN |
| GBFLX | Flixton | TRF |
| GBFLK | Flookburgh | CMA |
| GBFLR | Flore | NTH |
| GBFLH | Flotta | ORK |
| GBFNC | Finchampstead | WOK |
| GBFCL | Finchley | LND |
| GBFIR | Findern | DBY |
| GBFIN | Findhorn | MRY |