020 7947 xxxx

What Ofcom’s records say

Allocated to

Colt Technology Services

The provider Ofcom gave the block to

Ofcom status

Allocated

Allocated on

17 December 1999

Area

London

Area code 020

Numbers in block

10,000 numbers

Number length

11 digits

Source: Ofcom numbering data, files published 7 October 2026, checked 13 October 2026

Ofcom has allocated this block of numbers to Colt Technology Services.

Ofcom allocates phone numbers to communications providers in blocks. The provider shown is the one Ofcom allocated this block to. It is not the person or business that called you, and the number may since have moved to a different network, because people can usually keep their number when they switch provider. Ofcom does not hold information about individual numbers.

Numbers in this range we know about

Numbers an organisation lists on its own website or in an official register, and numbers at least 3 visitors have reported.

• 020 7947 6000
  • Contact listed on GOV.UK: Out-of-hours emergency applications
  • Contact listed on GOV.UK: Royal Courts of Justice
  • Court: Administrative Court
  • Court: Royal Courts of Justice
• 020 7947 6011
  • Court: Court of Appeal Criminal Division
  • Court: Royal Courts of Justice
• 020 7947 6102
  • Court: Business and Property Division
  • Court: Rolls Building, Business and Property Division
• 020 7947 6139
  • Court: Court of Appeal Civil Division
  • Court: Court of Appeal Criminal Division
• 020 7947 6148
  • Court: Rolls Building, Business and Property Division
• 020 7947 6195
  • Court: Court of Appeal Civil Division
• 020 7947 6260
  • Court: Royal Courts of Justice
• 020 7947 6294
  • Court: Bankruptcy Court (High Court)
• 020 7947 6404
  • Court: Royal Courts of Justice
  • Court: Senior Courts Costs Office
• 020 7947 6516
  • Court: Bankruptcy Court (High Court)
  • Court: Rolls Building, Business and Property Division
• 020 7947 6543
  • Court: Family Division
• 020 7947 6585
  • Court: Rolls Building, Business and Property Division
• 020 7947 6605
  • Court: Senior Courts Costs Office
• 020 7947 6655
  • Court: Royal Courts of Justice
• 020 7947 6690
  • Court: Business and Property Division
  • Court: Patents Court
  • Court: Rolls Building, Business and Property Division
• 020 7947 6731
  • Court: Bankruptcy Court (High Court)
  • Court: Business and Property Division
  • Court: Rolls Building, Business and Property Division
• 020 7947 6877
  • Contact listed on GOV.UK: Election Petitions Office
• 020 7947 6916
  • Court: Royal Courts of Justice
• 020 7947 7121
  • Contact listed on GOV.UK: Civil Appeals Office
  • Court: Court of Appeal Civil Division
• 020 7947 7156
  • Court: Business and Property Division
  • Court: London Circuit Commercial Court
  • Court: Rolls Building, Business and Property Division
  • Court: Technology & Construction Court
• 020 7947 7161
  • Court: Royal Courts of Justice
• 020 7947 7192
  • Court: Family Division
• 020 7947 7305
  • Court: Family Division
• 020 7947 7357
  • Court: Admiralty and Commercial Court
  • Court: Rolls Building, Business and Property Division
• 020 7947 7391
  • Court: Business and Property Division
  • Court: Rolls Building, Business and Property Division
• 020 7947 7397
  • Court: Family Division
• 020 7947 7422
  • Contact listed on GOV.UK: Upper Tribunal
• 020 7947 7502
  • Court: Central London County Court (Bankruptcy)
• 020 7947 7551
  • Court: Family Division
• 020 7947 7592
  • Court: Rolls Building, Business and Property Division
• 020 7947 7725
  • Court: Family Division
• 020 7947 7783
  • Court: Enquiries
  • Court: Admiralty and Commercial Court
• 020 7947 7828
  • Court: Court of Appeal Civil Division
• 020 7947 7929
  • Court: Rolls Building, Business and Property Division