01900 421 Dialing Code


Dialing Code 01900 421 is part of Area Code 01900, which covers Workington and the surrounding area.

The majority of numbers in the 01900 Area Code belong to normal landlines in Workington, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01900 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 421 after the area code indicate that the range of numbers was originally allocated to Orange Business Holdings UK Limited on 2 May 2023, although due to number portability, individual numbers within this range may now be allocated to other operators.

01900 area code information

Area Code: 01900
Location: Workington
Dialing Code: 01900 421
Provider: Orange Business Holdings UK Limited
Date range allocated: 2 May 2023
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01900 421###
International number format: +44 1900 421###
Last code change: April 1995 from 0900.

This page was last updated on 4 May 2023.