Number range
020 3474 xxxx
Ofcom’s records for the block of 10,000 numbers that start 0203474, and any numbers in it that we hold other information about.
What Ofcom’s records say
- Allocated to
- X-on Health Limited
- The provider Ofcom gave the block to
- Ofcom status
- Allocated
- Allocated on
- 19 November 2009
- 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 X-on Health Limited.
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 3474 5570
- GP practice: The Lister Practice
- 020 3474 6000
- GP practice: Bermondsey Spa Medical Centre
- 020 3474 6070
- GP practice: Clapham Family Practice
- 020 3474 6111
- GP practice: Modality Lewisham (ML)
- 020 3474 6410
- GP practice: The Exchange Surgery
- 020 3474 6730
- GP practice: Amersham Vale Training Practice
- 020 3474 6750
- GP practice: The Deerbrook Surgery
- 020 3474 6829
- GP practice: East Barnet Health Centre
- 020 3474 6999
- GP practice: Streatham Common Practice
Contains public sector information from NHS England (Organisation Data Service), "GP Practices (epraccur)" (13 October 2026), licensed under the Open Government Licence v3.0.
Sources and checks
This page relies on:
Checked on 13 October 2026. Read how reports work. How we check our information. Spotted a mistake? Tell us and we will put it right.