01833 21 Dialing Code

Barnard Castle

Dialing Code 01833 21 is part of Area Code 01833, which covers Barnard Castle and the surrounding area.

The majority of numbers in the 01833 Area Code belong to normal landlines in Barnard Castle, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01833 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 21 after the area code indicate that the range of numbers was originally allocated to Lumen Technologies UK Limited on 22 February 2008, although due to number portability, individual numbers within this range may now be allocated to other operators.

01833 area code information

Area Code: 01833
Location: Barnard Castle
Dialing Code: 01833 21
Provider: Lumen Technologies UK Limited
Date range allocated: 22 February 2008
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01833 21####
International number format: +44 1833 21####
Last code change: April 1995 from 0833.

This page was last updated on 9 August 2023.