01555 21 Dialing Code

Lanark

Dialing Code 01555 21 is part of Area Code 01555, which covers Lanark and the surrounding area.

The majority of numbers in the 01555 Area Code belong to normal landlines in Lanark, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01555 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 VoIP-Un Limited on 31 October 2007, although due to number portability, individual numbers within this range may now be allocated to other operators.

01555 area code information

Area Code: 01555
Location: Lanark
Dialing Code: 01555 21
Provider: VoIP-Un Limited
Date range allocated: 31 October 2007
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01555 21####
International number format: +44 1555 21####
Last code change: April 1995 from 0555.

This page was last updated on 9 August 2023.