01205 635 Dialing Code


Dialing Code 01205 635 is part of Area Code 01205, which covers Boston and the surrounding area.

The majority of numbers in the 01205 Area Code belong to normal landlines in Boston, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01205 Area Code and they are allocated blocks of numbers, which can be identified by the digits following the Area Code. In this case, the digits 635 after the area code indicate that the range of numbers was originally allocated to BT on 6 October 2022, although due to number portability, individual numbers within this range may now be allocated to other operators.

01205 area code information

Area Code: 01205
Location: Boston
Dialing Code: 01205 635
Provider: BT
Date range allocated: 6 October 2022
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01205 635###
International number format: +44 1205 635###
Last code change: April 1995 from 0205.