UK towns starting with O
50 towns and the area code that covers each. A code is named after one place but reaches many, so the code on a caller ID tells you less than it looks like it does.
- Oadby0116
- Oakengates01952
- Oakham01572
- Oaklands01438
- Oakley01234
- Oakley01256
- Oatlands01932
- Oban01631
- Ockbrook01332
- Odd Rode01270
- Odiham01256
- Offington01903
- Okehampton01837
- Old Basing01256
- Old Leake01205
- Old Stratford01908
- Old Swan0151
- Old Windsor01753
- Old Woking01483
- Oldbury0121
- Oldham0161
- Oldland0117
- Oldland Common0117
- Oldmeldrum01651
- Olney01234
- Ombersley01905
- Ongar01277
- Ordsall01777
- Orkney01856
- Ormesby01642
- Ormskirk01695
- Orpington01689
- Orsett01375
- Ossett01924
- Oswaldtwistle01254
- Oswestry01691
- Otford01959
- Otley01943
- Ottershaw01932
- Ottery St Mary01404
- Oughtibridge0114
- Oundle01832
- Outwell01945
- Over01954
- Over Wallop01264
- Overton01256
- Oxenhope01535
- Oxford01865
- Oxshott01372
- Oxted01883
All 3,147 towns across 610 area codes. Town locations and populations from Wikidata (CC0); area codes and ranges from Ofcom's published allocations.