Number range
01235 81xxxx
Ofcom’s records for the block of 10,000 numbers that start 0123581, and any numbers in it that we hold other information about.
What Ofcom’s records say
- Allocated to
- BT
- The provider Ofcom gave the block to
- Ofcom status
- Allocated
- Allocated on
- 15 July 1994
- 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 BT.
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.
- 01235 810099
- GP practice: Oak Tree Health Centre
- 01235 811750
- Pharmacy: Day Lewis Pharmacy
- 01235 812092
- School: Didcot Girls' School
- 01235 812241
- Pharmacy: Boots
- 01235 812242
- Pharmacy: Didcot Pharmacy
- 01235 812762
- School: Manor Primary School
- 01235 813110
- School: South Moreton Primary School
- 01235 813137
- School: Lydalls Nursery School
- 01235 813304
- School: Willowcroft Community School
- 01235 813367
- School: Hagbourne Church of England Primary School
- 01235 814444
- School: St Birinus School
- 01235 814718
- School: Stephen Freeman Primary School
- 01235 816445
- Pharmacy: Apollo Pharmacy
- 01235 817744
- School: Northbourne Church of England Primary School
- 01235 819143
- School: All Saints Church of England Primary School
Contains public sector information from NHS England (Organisation Data Service), "GP Practices (epraccur)" (13 October 2026), licensed under the Open Government Licence v3.0.
Contains public sector information from NHS England (Organisation Data Service), "Pharmacies (edispensary)" (13 October 2026), licensed under the Open Government Licence v3.0.
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.