Number range
01356 23xxxx
Ofcom’s records for the block of 10,000 numbers that start 0135623, and any numbers in it that we hold other information about.
What Ofcom’s records say
- Allocated to
- Gamma Telecom Holdings Limited
- The provider Ofcom gave the block to
- Ofcom status
- Allocated
- Allocated on
- 17 May 2005
- 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 Gamma Telecom Holdings 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.
- 01356 237100
- School: Brechin High School
- 01356 237129
- School: Andover Primary School
- 01356 237135
- School: Edzell Primary School
- 01356 237138
- School: Maisondieu Primary School
- 01356 237146
- School: Stracathro Primary School
Contains public sector information from Scottish Government, "School contact details" (31 July 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.