01277 521 Dialing Code

Brentwood

Dialing Code 01277 521 is part of Area Code 01277, which covers Brentwood and the surrounding area.

The majority of numbers in the 01277 Area Code belong to normal landlines in Brentwood, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01277 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 521 after the area code indicate that the range of numbers was originally allocated to Mars Communications Limited on 3 February 2009, although due to number portability, individual numbers within this range may now be allocated to other operators.

01277 area code information

Area Code: 01277
Location: Brentwood
Dialing Code: 01277 521
Provider: Mars Communications Limited
Date range allocated: 3 February 2009
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01277 521###
International number format: +44 1277 521###
Last code change: April 1995 from 0277.

This page was last updated on 9 August 2023.