Number range
01206 57xxxx
Ofcom’s records for the block of 10,000 numbers that start 0120657, 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.
- 01206 570371
- GP practice: Creffield Medical Group
- 01206 572253
- School: St Helena School
- 01206 572288
- School: Montgomery Primary School, Colchester
- 01206 572362
- School: Hamilton Primary School
- 01206 572372
- GP practice: Winstree Medical Practice
- 01206 572544
- School: St Mary's School for Girls
- 01206 573389
- School: Colchester Prep & High School
- 01206 573519
- School: Lexden Primary School with Unit for Hearing Impaired Pupils
- 01206 573807
- School: Kings Ford Academy
- 01206 573849
- School: Monkwick Infant and Nursery School
- 01206 574225
- School: North Primary School and Nursery
- 01206 574305
- School: Holmwood House School
- 01206 574483
- GP practice: Tollgate Health Centre
- 01206 574524
- School: King's Ford Infant School and Nursery
- 01206 574819
- School: Stanway Primary School
- 01206 574849
- School: Stanway Fiveways Primary School
- 01206 575224
- School: Cherry Tree Academy
- 01206 575399
- School: Monkwick Junior School
- 01206 575407
- School: Gosbecks Primary School
- 01206 575488
- School: The Stanway School
- 01206 575735
- Pharmacy: Prettygate Pharmacy
- 01206 576408
- School: Kingswode Hoe School
- 01206 576548
- Pharmacy: Hutt Pharmacy
- 01206 576915
- Pharmacy: Mersea Road Pharmacy
- 01206 576973
- School: Colchester County High School for Girls
- 01206 577303
- Pharmacy: Boots
- 01206 577430
- School: Home Farm Primary School
- 01206 577608
- School: Prettygate Infant School
- School: Prettygate Junior School
- 01206 578874
- Pharmacy: Boots
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.
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.