01535 321 Dialing Code

Keighley

Dialing Code 01535 321 is part of Area Code 01535, which covers Keighley and the surrounding area.

The majority of numbers in the 01535 Area Code belong to normal landlines in Keighley, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01535 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 321 after the area code indicate that the range of numbers was originally allocated to Invoco Ltd on 26 September 2011, although due to number portability, individual numbers within this range may now be allocated to other operators.

01535 area code information

Area Code: 01535
Location: Keighley
Dialing Code: 01535 321
Provider: Invoco Ltd
Date range allocated: 26 September 2011
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01535 321###
International number format: +44 1535 321###
Last code change: April 1995 from 0535.

This page was last updated on 9 August 2023.