Number range
01423 86xxxx
Ofcom’s records for the block of 10,000 numbers that start 0142386, 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.
- 01423 860197
- Pharmacy: Boots
- 01423 862117
- Pharmacy: PR Naylor Chemist Limited
- 01423 862209
- School: Scotton Lingerfield Primary School
- 01423 862617
- School: Goldsborough Church of England Primary School
- 01423 863171
- Pharmacy: Boots
- 01423 863265
- School: Knaresborough St John's Church of England Primary School
- 01423 863920
- School: Aspin Park Academy
- 01423 864312
- Pharmacy: Chain Lane Pharmacy
- 01423 864583
- School: The Forest School
- 01423 864631
- School: St Mary's Primary School Knaresborough, A Voluntary Catholic Academy
- 01423 865308
- Pharmacy: Knaresborough Pharmacy Plus Health
- 01423 866061
- School: King James's School
- 01423 866207
- School: Meadowside Academy
- 01423 867433
- GP practice: Stockwell Road Surgery
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.
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.