020 4578 Dialing Code


Dialing Code 020 4578 is part of Area Code 020, which covers London and the surrounding area.

The majority of numbers in the 020 Area Code belong to normal landlines in London, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 020 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 4578 after the area code indicate that the range of numbers was originally allocated to Belgacom International Carrier Services SA on 20 August 2021, although due to number portability, individual numbers within this range may now be allocated to other operators.

020 area code information

Area Code: 020
Location: London
Dialing Code: 020 4578
Provider: Belgacom International Carrier Services SA
Date range allocated: 20 August 2021
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 8
Number format: 020 4578 ####
International number format: +44 20 4578 ####
Last code change: April 2000 from 0171 (inner London) and 0181 (outer London).