Download numbering data
Published: 13 March 2024
Last updated: 26 June 2024
We publish data on which UK telephone numbers are available for allocation or are allocated, and lists of codes for use in number porting and other administrative tasks.
ICSTIS complaint regarding failure of Talkline Communications Ltd to comply with ICSTIS Directions
Published: 13 March 2018
Last updated: 8 March 2024
Investigation into GW Telecom Limited (“Gateway”) concerning its compliance with its obligations relating to number portability
Published: 9 August 2023
Last updated: 5 March 2024
Ofcom’s investigation will examine whether there are reasonable grounds for believing that Gateway has failed to comply with its obligations under GC18.1, GC18.3 and/or GC18.5.
Own-initiative investigation into Barritel’s compliance with GC17 and the National Telephone Numbering Plan
Published: 22 February 2024
Last updated: 22 February 2024
On 14 September 2017 Ofcom opened an investigation into Barritel Limited’s “0800 Wizard” service and its compliance with General Condition 17 (GC17) and the National Telephone Numbering Plan (the ‘NTNP’).
Own-initiative investigation into Barritec’s compliance with GC17 and the National Telephone Numbering Plan
Published: 22 February 2024
Last updated: 22 February 2024
On 14 September 2017 Ofcom opened an investigation into Barritec Limited’s “Cash for Calls” service and its compliance with General Condition 17 (GC17) and the National Telephone Numbering Plan (the ‘NTNP’).
Consultation: Further consultation on revenue sharing
Published: 1 December 2023
This consultation forms part of our ongoing review of telephone numbers (the Future of Numbering Review).
Telecoms numbering
Published: 28 November 2023
This section provides information about UK telephone numbers, and allows communications providers to apply for telephone numbers from the National Numbering Plan.
Call costs guide
Published: 14 February 2023
Last updated: 8 August 2023
If you’re confused by call charges or don’t know your 0300 from your 0845 and 0844 numbers, then we have the perfect guide for you.
Protecting essential phone boxes
Published: 8 August 2023
Public call boxes can provide a safety net for people without access to a landline or working mobile phone. Under Ofcom rules, thousands of essential phone boxes are protected from removal.
Enforcement programme into compliance with annual geographic number charges
Published: 19 July 2023
Last updated: 25 July 2023
This programme assessed CPs compliance with their requirements to pay Ofcom an annual charge for ‘specified’ geographic numbers.