UK area code
01237 area code — Bideford
01237 is Ofcom’s Bideford numbering area, in Devon, South West England. 94 phone companies hold its 115 allocated number blocks. Its numbers are written like 01237 234 567. The nearest other codes are 01805 Torrington (8 km) and 01271 Barnstaple (12 km).
01237 at a glance
- Ofcom area name
- Bideford
- County
- Devon
- Council area
- Devon
- Region
- South West England
- Number format
- 01237 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0237)
- Allocated blocks
- 115 of 406 (28%) across 94 providers
- Newest block
- 26 January 2026 (1 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
If a 01237 number called you
No clear pattern in reports for these numbers yet. If a call worried you:
- 1
Call back on a number you trust
If a caller says they're your bank, HMRC, a courier or a council, hang up and ring the organisation on the number from its website or your statement, never the number that called you. Caller ID can be faked.
- 2
Forward it to 7726
On a mobile, copy the caller's number from your recent calls and text it to 7726 (it spells SPAM). Scam texts can be forwarded to 7726 as they are. It's free, and your network uses the reports to investigate and block numbers.
- 3
Stop sales calls
Register your landline and mobile free with the Telephone Preference Service (0345 070 0707). Legitimate UK marketers must check it; calls should drop within 28 days. It won't stop scammers.
- 4
If you lost money or shared details
Call your bank on the number on your card (or 159 to reach most UK banks safely), then report it to Report Fraud online or on 0300 123 2040. Report Fraud replaced Action Fraud on 4 December 2025 for England, Wales and Northern Ireland; in Scotland call Police Scotland on 101.
01237 history and number format
Number format: Numbers on 01237 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01237 234 567.
Before 1995: 01237 took its current form at PhONEday on 16 April 1995, when a "1" was inserted into every UK geographic code — before that the area dialled 0237.
Local dialling: Traditionally not from another 01237 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01237 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01237 was allocated on 15 July 1994, and the most recent on 26 January 2026. 1 block was allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01237 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01237 numbers
Every Ofcom range holder with blocks on 01237, by allocated blocks. The holder is the company Ofcom allocated the block to; a number can since have been ported to another provider (see range holder vs current provider).
| Range holder | Allocated | All blocks | First block | Latest block |
|---|---|---|---|---|
| BT | 7 | 7 | 15 July 1994 | 15 March 2021 |
| Sky UK Limited | 4 | 4 | 21 June 2013 | 12 May 2025 |
| TalkTalk Communications Limited | 4 | 4 | 17 January 2012 | 24 April 2015 |
| GCI Network Solutions Limited | 3 | 3 | 20 April 2017 | 26 February 2024 |
| Inet Telecoms Ltd (Voipfone) | 3 | 3 | 1 November 2012 | 1 November 2012 |
| Barritel Limited | 2 | 2 | 8 October 2008 | 28 November 2022 |
| Colt Technology Services | 2 | 2 | 21 April 2015 | 23 February 2018 |
| Digital Space Group Limited | 2 | 2 | 29 November 2007 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Gamma Telecom Holdings Limited | 2 | 2 | 8 April 2005 | 22 September 2021 |
| (AQ) LIMITED | 1 | 1 | 19 October 2011 | 19 October 2011 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 17 January 2020 | 17 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 26 March 2012 | 26 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 21 June 2006 | 21 June 2006 |
| Adepteo Limited | 1 | 1 | 16 January 2017 | 16 January 2017 |
| Alnitak GmbH | 1 | 1 | 25 April 2017 | 25 April 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 26 February 2009 | 26 February 2009 |
| Atomstream Limited | 1 | 1 | 23 April 2010 | 23 April 2010 |
| Belgacom International Carrier Services SA | 1 | 1 | 3 October 2019 | 3 October 2019 |
| Bicom Systems EURL | 1 | 1 | 2 March 2012 | 2 March 2012 |
| Bink Networks Ltd | 1 | 1 | 27 March 2023 | 27 March 2023 |
| CFL Communications Ltd | 1 | 1 | 8 July 2009 | 8 July 2009 |
| Citrus Telecommunications Ltd | 1 | 1 | 8 March 2006 | 8 March 2006 |
| Commi Holdings Limited | 1 | 1 | 21 November 2016 | 21 November 2016 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| DIDWW Ireland Limited | 1 | 1 | 27 January 2020 | 27 January 2020 |
| Datazero Ltd | 1 | 1 | 2 November 2010 | 2 November 2010 |
| Dial 9 Communications Limited | 1 | 1 | 9 December 2019 | 9 December 2019 |
| Digital Mail Limited | 1 | 1 | 21 December 2010 | 21 December 2010 |
| Digitech Solutions Global Limited | 1 | 1 | 23 April 2010 | 23 April 2010 |
Showing the 30 largest of 94 holders.
All number blocks on 01237first 200 of 406, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 123700 | Protected | — |
| +44 123701 | Protected | — |
| +44 123702 | Protected | — |
| +44 123703 | Protected | — |
| +44 123704 | Protected | — |
| +44 123705 | Protected | — |
| +44 123706 | Protected | — |
| +44 123707 | Protected | — |
| +44 123708 | Protected | — |
| +44 123709 | Protected | — |
| +44 123710 | Protected | — |
| +44 123711 | Protected | — |
| +44 123712 | Protected | — |
| +44 123713 | Protected | — |
| +44 123714 | Protected | — |
| +44 123715 | Protected | — |
| +44 123716 | Protected | — |
| +44 123717 | Protected | — |
| +44 123718 | Protected | — |
| +44 123719 | Protected | — |
| +44 123720 | Allocated | Localphone Limited |
| +44 123721 | Protected | — |
| +44 1237220 | Protected | — |
| +44 1237221 | Protected | — |
| +44 1237222 | Allocated | Planet Telecom Ltd |
| +44 1237223 | Protected | — |
| +44 1237224 | Protected | — |
| +44 1237225 | Protected | — |
| +44 1237226 | Protected | — |
| +44 1237227 | Protected | — |
| +44 1237228 | Protected | — |
| +44 1237229 | Protected | — |
| +44 1237230 | Protected | — |
| +44 1237231 | Protected | — |
| +44 1237232 | Protected | — |
| +44 1237233 | Protected | — |
| +44 1237234 | Protected | — |
| +44 1237235 | Protected | — |
| +44 1237236 | Protected | — |
| +44 1237237 | Allocated | TalkTalk Communications Limited |
| +44 1237238 | Allocated | TalkTalk Communications Limited |
| +44 1237239 | Allocated | TalkTalk Communications Limited |
| +44 123724 | Allocated | (AQ) LIMITED |
| +44 123725 | Allocated | VoIP-Un Limited |
| +44 1237260 | Allocated | Voxbone SA |
| +44 1237261 | Protected | — |
| +44 1237262 | Protected | — |
| +44 1237263 | Protected | — |
| +44 1237264 | Protected | — |
| +44 1237265 | Protected | — |
| +44 1237266 | Protected | — |
| +44 1237267 | Protected | — |
| +44 1237268 | Protected | — |
| +44 1237269 | Protected | — |
| +44 123727 | Allocated | Voiceflex Limited |
| +44 123728 | Allocated | Digital Space Group Limited |
| +44 1237290 | Protected | — |
| +44 1237291 | Protected | — |
| +44 1237292 | Protected | — |
| +44 1237293 | Protected | — |
| +44 1237294 | Protected | — |
| +44 1237295 | Protected | — |
| +44 1237296 | Protected | — |
| +44 1237297 | Allocated | Digital Space Group Limited |
| +44 1237298 | Protected | — |
| +44 1237299 | Protected | — |
| +44 123730 | Allocated | Net-Work Internet Ltd |
| +44 123731 | Allocated | Telecom2 Limited |
| +44 123732 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 123733 | Allocated | Nodemax Limited |
| +44 123734 | Allocated | Commi Holdings Limited |
| +44 1237350 | Allocated | Sky UK Limited |
| +44 1237351 | Free | — |
| +44 1237352 | Free | — |
| +44 1237353 | Free | — |
| +44 1237354 | Free | — |
| +44 1237355 | Free | — |
| +44 1237356 | Free | — |
| +44 1237357 | Free | — |
| +44 1237358 | Free | — |
| +44 1237359 | Free | — |
| +44 123736 | Allocated | Solutios Limited |
| +44 123737 | Protected | — |
| +44 123738 | Allocated | Barritel Limited |
| +44 123739 | Quarantined | — |
| +44 123740 | Allocated | Magrathea Telecommunications Limited |
| +44 1237410 | Protected | — |
| +44 1237411 | Protected | — |
| +44 1237412 | Protected | — |
| +44 1237413 | Protected | — |
| +44 1237414 | Allocated | Orbtalk Limited |
| +44 1237415 | Protected | — |
| +44 1237416 | Allocated | Colt Technology Services |
| +44 1237417 | Protected | — |
| +44 1237418 | Allocated | Simwood eSMS Limited |
| +44 1237419 | Allocated | Bicom Systems EURL |
| +44 123742 | Allocated | BT |
| +44 123743 | Allocated | BT |
| +44 123744 | Allocated | BT |
| +44 123745 | Allocated | BT |
| +44 123746 | Allocated | Citrus Telecommunications Ltd |
| +44 123747 | Allocated | BT |
| +44 123748 | Allocated | AQL Wholesale Ltd |
| +44 123749 | Allocated | BT |
| +44 123750 | Allocated | Mars Communications Limited |
| +44 123751 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1237520 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1237521 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1237522 | Protected | — |
| +44 1237523 | Protected | — |
| +44 1237524 | Protected | — |
| +44 1237525 | Protected | — |
| +44 1237526 | Protected | — |
| +44 1237527 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1237528 | Protected | — |
| +44 1237529 | Protected | — |
| +44 123753 | Allocated | Telecoms World Limited |
| +44 123754 | Allocated | Nexus Telecommunications Limited |
| +44 123755 | Allocated | Invade International Ltd |
| +44 123756 | Quarantined | — |
| +44 123757 | Allocated | CFL Communications Ltd |
| +44 1237580 | Protected | — |
| +44 1237581 | Protected | — |
| +44 1237582 | Protected | — |
| +44 1237583 | Allocated | TeleWare Group Limited |
| +44 1237584 | Protected | — |
| +44 1237585 | Protected | — |
| +44 1237586 | Protected | — |
| +44 1237587 | Protected | — |
| +44 1237588 | Protected | — |
| +44 1237589 | Protected | — |
| +44 123759 | Protected | — |
| +44 123760 | Allocated | TGL Services (UK) Ltd |
| +44 1237610 | Protected | — |
| +44 1237611 | Protected | — |
| +44 1237612 | Protected | — |
| +44 1237613 | Protected | — |
| +44 1237614 | Allocated | Six Degrees Technology Group Limited |
| +44 1237615 | Protected | — |
| +44 1237616 | Protected | — |
| +44 1237617 | Protected | — |
| +44 1237618 | Protected | — |
| +44 1237619 | Protected | — |
| +44 1237620 | Protected | — |
| +44 1237621 | Protected | — |
| +44 1237622 | Protected | — |
| +44 1237623 | Protected | — |
| +44 1237624 | Protected | — |
| +44 1237625 | Protected | — |
| +44 1237626 | Protected | — |
| +44 1237627 | Protected | — |
| +44 1237628 | Protected | — |
| +44 1237629 | Protected | — |
| +44 1237630 | Allocated | Phone Co-Op Numbering Limited |
| +44 1237631 | Protected | — |
| +44 1237632 | Allocated | Digital Mail Limited |
| +44 1237633 | Allocated | GCI Network Solutions Limited |
| +44 1237634 | Protected | — |
| +44 1237635 | Allocated | Invosys Limited |
| +44 1237636 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1237637 | Allocated | Nexbridge Communications Limited |
| +44 1237638 | Allocated | Invoco Ltd |
| +44 1237639 | Protected | — |
| +44 123764 | Allocated | Redcentric Solutions Limited |
| +44 123765 | Protected | — |
| +44 123766 | Allocated | TTNC Limited |
| +44 123767 | Allocated | Served Up Limited |
| +44 1237680 | Protected | — |
| +44 1237681 | Protected | — |
| +44 1237682 | Protected | — |
| +44 1237683 | Protected | — |
| +44 1237684 | Protected | — |
| +44 1237685 | Protected | — |
| +44 1237686 | Protected | — |
| +44 1237687 | Protected | — |
| +44 1237688 | Protected | — |
| +44 1237689 | Protected | — |
| +44 123769 | Allocated | TelNG Limited |
| +44 1237700 | Allocated | Sky UK Limited |
| +44 1237701 | Allocated | Digitech Solutions Global Limited |
| +44 1237702 | Allocated | Atomstream Limited |
| +44 1237703 | Allocated | Suretec Systems Ltd |
| +44 1237704 | Allocated | Barritel Limited |
| +44 1237705 | Allocated | Datazero Ltd |
| +44 1237706 | Allocated | Windsor Telecom Limited |
| +44 1237707 | Allocated | Telappliant Limited |
| +44 1237708 | Allocated | VoiceHost Limited |
| +44 1237709 | Allocated | Telephone Box Limited |
| +44 1237710 | Allocated | Internexus Networks Limited |
| +44 1237711 | Allocated | Minotaur Telecom Limited |
| +44 1237712 | Allocated | 8x8 Communications UK Limited |
| +44 1237713 | Allocated | IOVOX Limited |
| +44 1237714 | Allocated | ICC Networks Ltd |
| +44 1237715 | Allocated | Nuso Cloud UK Limited |
| +44 1237716 | Allocated | Hello Telecom (UK) Limited |
| +44 1237717 | Allocated | Ziron Limited |
| +44 1237718 | Protected | — |
| +44 1237719 | Allocated | Content Guru Limited |
| +44 1237720 | Allocated | Redwood Technologies Ltd |
| +44 1237721 | Allocated | Sky UK Limited |
Related lookups
- 01805 Torrington8 km away
- 01271 Barnstaple12 km away
- 01409 Holsworthy25 km away
- 01769 South Molton26 km away
- BT7 allocated blocks on 01237
- Sky UK Limited4 allocated blocks on 01237
- TalkTalk Communications Limited4 allocated blocks on 01237
- All UK towns A–ZDialling codes by town
- More Devon codesSame region
- All UK area codesBrowse every 01/02 dialling code
- Lookup any UK numberFree reverse phone lookup
- UK area codes explainedCornerstone guide
- 020 London numbers explainedCornerstone guide
- 0330 numbers explainedCornerstone guide
- How Ofcom allocates UK phone numbersCornerstone guide
FAQs about 01237
Where is area code 01237?
01237 is Ofcom's Bideford numbering area, in Devon, South West England. Its exchange town is in Devon. From abroad, drop the 0 and dial +44 1237.
Do I need to dial 01237 for a local call?
Traditionally not from another 01237 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01237 first always works, and mobiles always need it.
How are 01237 numbers written?
Numbers on 01237 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01237 234 567. From abroad the leading zero is dropped: +44 1237 then the local number.
What was the 01237 area code before?
01237 took its current form at PhONEday on 16 April 1995, when a "1" was inserted into every UK geographic code — before that the area dialled 0237. Old signage or stationery showing 0237 refers to the same Bideford numbers.
Which phone companies hold 01237 numbers?
Ofcom lists 94 providers with allocated blocks on 01237. The largest are BT with 7 of the 115 allocated blocks, Sky UK Limited with 4 of the 115 allocated blocks and TalkTalk Communications Limited with 4 of the 115 allocated blocks. Numbers can be ported, so a number's current provider may differ from the block's holder.
Which area codes are next to 01237?
By distance between exchange towns, the nearest other codes are 01805 Torrington (8 km), 01271 Barnstaple (12 km), 01409 Holsworthy (25 km) and 01769 South Molton (26 km).
How do I report a scam call from a 01237 number?
On a mobile, text the caller's number to 7726 (free). If you lost money or shared details, call your bank and report it to Report Fraud (0300 123 2040), which replaced Action Fraud in December 2025. Unwanted sales calls go to the ICO after registering with the Telephone Preference Service.