| Code | Name | Region |
|---|---|---|
| GBRUT | Rutherglen | SLK |
| GBRHN | Ruthin | DEN |
| GBRUV | Ruthven | ANS |
| GBRYD | Ryde | IOW |
| GBRYE | Rye | ESX |
| GBRU7 | Rye Harbour | ESX |
| GBRYH | Ryhope | SND |
| GBRYN | Ryton | GAT |
| GBRTD | Ryton On Dunsmore | WAR |
| GBSAB | Sabden | LAN |
| GBSAW | Saffron Walden | ESS |
| GBABJ | Saint Abbs | SCB |
| GBSAG | Saint Agnes | CON |
| GBTBL | Saint Albans | HRT |
| GBSNW | Saint Andrews | FIF |
| GBSPH | Saint Asaph | DEN |
| GBRUW | Ruabon | WRX |
| GBRUM | Ruan Minor | CON |
| GBRUA | Ruanaich | AGB |
| GBRDX | Ruardean | GLS |
| GBRBY | Rubery | WOR |
| GBRDO | Ruddington | NTT |
| GBRGW | Rudgwick | WSX |
| GBRDH | Rudh Re - Red Point | HLD |
| GBRHE | Rudheath | CHW |
| GBRUG | Rugby | WAR |
| GBREY | Rugeley | STS |
| GBRUI | Ruislip | HIL |
| GBRUY | Rumney | CRF |
| GBRUN | Runcorn | HAL |
| GBRUL | Rushall | WLL |
| GBRUS | Rushden | NTH |
| GBRSG | Rushlake Green | ESX |
| GBRUH | Rushock | HEF |
| GBRUK | Rushock | WOR |
| GBRSN | Rushton | NTH |
| GBRAY | Rothesay, Isle Of Bute | AGB |
| GBRHW | Rothwell | NTH |
| GBRLL | Rothwell | YOR |
| GBRDZ | Roudham | NFK |
| GBRG9 | Rougham | NFK |
| GBRGO | Roughton | NFK |
| GBROU | Rousay | ORK |
| GBRWN | Rowardennan | STG |
| GBROW | Rowhedge | ESS |
| GBRGI | Rowlands Gill | DUR |
| GBRWE | Rowledge | SRY |
| GBRYR | Rowley Regis/west Bromwich | SAW |
| GBRXG | Roxburgh | SCB |
| GBRLP | Royal Leamington Spa | WAR |