Number range
0300 065 xxxx
Ofcom’s records for the block of 10,000 numbers that start 0300065, and any numbers in it that we hold other information about.
What Ofcom’s records say
- Allocated to
- Lumen Technologies UK Limited
- The provider Ofcom gave the block to
- Ofcom status
- Allocated
- Allocated on
- 5 June 2007
- Area
- Not linked to a place
- 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 Lumen Technologies UK 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.
- 0300 065 3000
- Contact listed on GOV.UK: Customer Service Centre
- Contact listed on GOV.UK: Natural Resources Wales
- 0300 065 8230
- School: Wayfield Primary School
- 0300 065 8300
- School: Crockenhill Primary School
- 0300 065 8430
- School: Senacre Wood Primary School
- 0300 065 8450
- School: Birchwood
Contains public sector information from Department for Education, "Establishment fields CSV" (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.