| OADBY |
| OAKDALE ROAD,CLIFTON MOOR |
| OAKHAM |
| OAKWOOD |
| OATLAND ROAD, PEVERELL |
| OFF BELL GREEN ROAD |
| OFF BELL LANE,BURY |
| OFF CEMETERY ROAD |
| OFF CORPORATION ROAD |
| OFF DALLOW ROAD |
| OFF GRANVILLE AVENUE |
| OFF GRAY STREET |
| OFF GROVE STREET |
| OFF HARESTONE HILL |
| OFF HARVEY ROAD |
| OFF HONEYPOT LANE |
| OFF MORNING LANE,HACKNEY |
| OFF OAKLEY ROAD |
| OFF OLDHAM ROAD |
| OFF QUEENS ROAD,NORWICH |
| OFF SAINTE FOY AVENUE |
| OFF STATION LANE |
| OFF THORPE ROAD |
| OFF TONG STREET |
| OFF TOWN BRIDGE PONTYPOOL |
| OFF TRAFALGAR ROAD |
| OFF WALMGATE |
| OFF WANTAGE ROAD |
| OFF WATLING STREET |
| OFF WOODHALL WAY |
| OFFERTON |
| OGMORE VALE BRIDGEND |
| OKEHAMPTON |
| OKUS |
| OLD AMERSHAM |
| OLD BRAMPTON |
| OLD CATTON |
| OLD COLLIERY RD, WHISTON |
| OLD COLWYN |
| OLD COSTESSEY |
| OLD COULSDON |
| OLD GOOLE |
| OLD POTTS WAY |
| OLD TOWN |
| OLD TOWN, EASTBOURNE |
| OLD TRAFFORD |
| OLD WOKING |
| OLDBURY |
| OLDFIELDS ROAD |
| OLDHAM |
| OLIVER ROAD |
| OLIVER ST, AMPTHILL |
| OLLIVIER STREET,ST.ANNES |
| OLNEY |
| OLTON, SOLIHULL |
| ONCHAN |
| ONGAR |
| OPENSHAW |
| ORBITAL PARK, ASHFORD |
| ORBITAL PARK,ASHFORD |
| ORMESBY ST.MARGARET |
| ORMSKIRK |
| ORMSKIRK ROAD, AINTREE |
| ORPINGTON |
| ORPINTGON |
| ORRELL LANE |
| ORSETT |
| ORTON GOLDHAY |
| ORTON SOUTHGATE |
| OSSETT |
| OSTERLEY |
| OSWESTRY |
| OTLEY |
| OTTERSHAW |
| OTTERY ST.MARY |
| OULTON |
| OULTON BROAD |
| OVERTON |
| OVERTON ON DEE |
| OXFORD |
| OXFORDSHIRE |
| OXON |
| OXSHOTT |
| OXTED |
| OXTON, BIRKENHEAD |