01252

01252 is a UK telephone area code used for landline numbers in parts of north-eastern Hampshire, within the South East England region. The code is administered as part of the national numbering plan and is operated by BT in conjunction with Ofcom. It is most closely associated with the towns of Aldershot, Farnborough and Fleet, along with surrounding communities in the Hart and Rushmoor districts, though the exact boundaries of the numbering area extend to nearby villages and rural parishes.

Numbers assigned to this code generally begin with the area code 01252 and are followed by six or seven digits, depending on the local exchange. In domestic dialing within the United Kingdom, callers use 01252 plus the local subscriber number. For international calls, the international format is +44 1252 followed by the local number, with the initial 0 omitted.

Historically, the 01252 code was introduced as part of late-20th-century reforms to the UK’s telephone numbering system to improve routing and capacity in Hampshire and neighboring counties. The area serves a region characterized by commuter towns linking South East England with the Greater London area. The 01252 code sits alongside nearby codes such as 01256 and interacts with the broader BT and Ofcom numbering framework for regional services.

See also: List of UK telephone area codes; BT Group; Ofcom.