Ofcom launches investigations into whether two telecoms companies failed to prevent misuse of their phone numbers by scammers
Published: 24 September 2026
Ofcom has opened two separate investigations into telecoms providers, Vonage Business Limited and Voxbone SA, relating to concerns that telephone numbers held by the companies are being misused, including to perpetrate scams.
Investigation into Voxbone’s compliance with its obligations under the General Conditions of Entitlement (GCs)
Published: 24 September 2026
Investigation into whether the communication provider, Voxbone, has failed to comply with obligations under General Conditions B1 relating to the effective and efficient use of telephone numbers.
Investigation in Vonage Business Ltd's compliance with Ofcom's General Conditions
Published: 24 September 2026
Investigation into whether the communications provider, Vonage Business Limited, has failed to comply with obligations under General Conditions B1.6, B1.8, and/or B1.9(c) which relate to the effective and efficient use of telephone numbers.
Download numbering data
Published: 13 March 2024
Last updated: 23 September 2026
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.
Phone numbers and call costs
Published: 26 August 2026
Find out more about phone numbers, call costs, unwanted calls, premium rate services and keeping your number when you switch phone provider.
Guidance on the provision of Calling Line Identification facilities and other related services
Published: 26 April 2018
Last updated: 15 July 2026
Guidelines for the provision of Calling Line Identification Facilities and other related services over Electronic Communications Networks Version 2
General demand for information
Published: 3 February 2025
Last updated: 10 April 2026
This webpage contains Ofcom’s publication of our general demand for financial information relating to PRS revenues under article 55 of the Regulation of Premium Rate Services Order 2024, S.I. 2024/1046 (PRS Order) for the purposes of calculating Ofcom’s related administrative charges.
Telecoms numbering
Published: 28 April 2010
Last updated: 3 February 2026
This section provides information about UK telephone numbers, and allows communications providers to apply for telephone numbers from the National Numbering Plan.
Quick guide to premium rate services (PRS)
Published: 31 January 2025
Last updated: 23 June 2025
Premium rate service is the name given to all content, goods, or services charged to a phone bill. Phone payment is a popular and easy way of paying for a range of services, such as music subscriptions, games, donations to charity and voting on TV talent shows.
Top tips to stay in control of your phone charges
Published: 31 January 2025
Last updated: 23 June 2025
This page provides information on how you can stay up to date and in control of your phone bill charges aswell as what to avoid.