Number range
01438 31xxxx
Ofcom’s records for the block of 10,000 numbers that start 0143831, 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.
- 01438 311130
- GP practice: Bedwell Medical Centre
- 01438 311937
- School: Roebuck Academy
- 01438 312097
- GP practice: Shephall Health Centre
- 01438 312338
- Pharmacy: Superdrug Pharmacy
- 01438 313223
- GP practice: Stanmore Medical Group
- 01438 314148
- School: The Leys Primary and Nursery School
- 01438 314189
- School: Trotts Hill Primary and Nursery School
- 01438 314333
- NHS trust: East and North Hertfordshire Teaching NHS Trust
- NHS trust service or site: Learning Disabilities Service (Cherry Trees)
- NHS trust service or site: Mental Health Service (Lister Hospital)
- 01438 314643
- School: The Saint John Henry Newman Catholic School
- 01438 314747
- Pharmacy: Oaks Cross Pharmacy
- 01438 315356
- School: Greenside School
- 01438 318111
- Pharmacy: Great Ashby Pharmacy
- 01438 318191
- Pharmacy: Archer Pharmacy
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 Department for Education, "Establishment fields CSV" (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 NHS England (Organisation Data Service), "NHS Trusts (etr)" (13 October 2026), licensed under the Open Government Licence v3.0.
Contains public sector information from NHS England (Organisation Data Service), "NHS Trust Sites (ets)" (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.