UK Area Code Finder
Quick and easy telephone dialling code information
This file contains a full list of geographical telephone area codes currently in use in the United Kingdom:
uk-area-codes.xlsx (32 KB - XLSX)
Or just browse the full list of area codes on screen.
UK area codes do not have precisely-defined boundaries and have been known by different names at different times. For each code, three definitions of the area covered are given in the file:
Best definition identified from official lists and research.
Official Ofcom definition
Official names defined by regulator Ofcom - some of which are inaccurate.
Previous BT area name
Traditional names used by BT until 2003. Some codes share the same name, where they form a single 'charging area'.