UK area code
01371 area code — Great Dunmow
01371 is Ofcom’s Great Dunmow numbering area, in Essex, East of England England. 86 phone companies hold its 101 allocated number blocks. Its numbers are written like 01371 234 567. The nearest other codes are 01376 Braintree (13 km) and 01279 Bishops Stortford (14 km).
01371 at a glance
- Ofcom area name
- Great Dunmow
- County
- Essex
- Council area
- Essex
- Region
- East of England England
- Number format
- 01371 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0371)
- Allocated blocks
- 101 of 424 (24%) across 86 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 01371 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.
01371 history and number format
Number format: Numbers on 01371 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01371 234 567.
Before 1995: 01371 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 0371.
Local dialling: Traditionally not from another 01371 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01371 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01371 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 01371 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01371 numbers
Every Ofcom range holder with blocks on 01371, 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 | 26 March 2025 |
| Inet Telecoms Ltd (Voipfone) | 3 | 3 | 6 August 2009 | 6 August 2009 |
| Sky UK Limited | 3 | 3 | 1 July 2013 | 14 December 2022 |
| TalkTalk Communications Limited | 3 | 3 | 19 January 2012 | 13 February 2013 |
| Digital Space Group Limited | 2 | 2 | 30 November 2007 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 25 April 2017 | 22 December 2023 |
| (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 | 27 March 2012 | 27 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 23 June 2006 | 23 June 2006 |
| Adepteo Limited | 1 | 1 | 13 December 2016 | 13 December 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 4 March 2009 | 4 March 2009 |
| Atomstream Limited | 1 | 1 | 26 April 2010 | 26 April 2010 |
| Barritel Limited | 1 | 1 | 3 July 2006 | 3 July 2006 |
| Belgacom International Carrier Services SA | 1 | 1 | 31 January 2020 | 31 January 2020 |
| Bicom Systems EURL | 1 | 1 | 2 March 2012 | 2 March 2012 |
| Bink Networks Ltd | 1 | 1 | 3 April 2023 | 3 April 2023 |
| CFL Communications Ltd | 1 | 1 | 9 July 2009 | 9 July 2009 |
| Calltracks Limited | 1 | 1 | 31 January 2014 | 31 January 2014 |
| Colt Technology Services | 1 | 1 | 1 July 2016 | 1 July 2016 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| DIDWW Ireland Limited | 1 | 1 | 22 January 2019 | 22 January 2019 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
| Dial 9 Communications Limited | 1 | 1 | 10 December 2019 | 10 December 2019 |
| Digitech Solutions Global Limited | 1 | 1 | 28 April 2010 | 28 April 2010 |
| EVE CONNECT LTD | 1 | 1 | 15 June 2022 | 15 June 2022 |
| Flextel Limited | 1 | 1 | 18 October 2005 | 18 October 2005 |
| Gamma Telecom Holdings Limited | 1 | 1 | 18 April 2005 | 18 April 2005 |
| Hello Telecom (UK) Limited | 1 | 1 | 19 July 2012 | 19 July 2012 |
Showing the 30 largest of 86 holders.
All number blocks on 01371first 200 of 424, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 137100 | Protected | — |
| +44 137101 | Protected | — |
| +44 137102 | Protected | — |
| +44 137103 | Protected | — |
| +44 137104 | Protected | — |
| +44 137105 | Protected | — |
| +44 137106 | Protected | — |
| +44 137107 | Protected | — |
| +44 137108 | Protected | — |
| +44 137109 | Protected | — |
| +44 137110 | Protected | — |
| +44 137111 | Protected | — |
| +44 137112 | Protected | — |
| +44 137113 | Protected | — |
| +44 137114 | Protected | — |
| +44 137115 | Protected | — |
| +44 137116 | Protected | — |
| +44 137117 | Protected | — |
| +44 137118 | Protected | — |
| +44 137119 | Protected | — |
| +44 137120 | Allocated | Redcentric Solutions Limited |
| +44 137121 | Protected | — |
| +44 137122 | Allocated | Voiceflex Limited |
| +44 1371230 | Protected | — |
| +44 1371231 | Protected | — |
| +44 1371232 | Protected | — |
| +44 1371233 | Protected | — |
| +44 1371234 | Protected | — |
| +44 1371235 | Protected | — |
| +44 1371236 | Protected | — |
| +44 1371237 | Protected | — |
| +44 1371238 | Allocated | TalkTalk Communications Limited |
| +44 1371239 | Allocated | TalkTalk Communications Limited |
| +44 137124 | Protected | — |
| +44 137125 | Allocated | (AQ) LIMITED |
| +44 1371260 | Protected | — |
| +44 1371261 | Protected | — |
| +44 1371262 | Protected | — |
| +44 1371263 | Protected | — |
| +44 1371264 | Protected | — |
| +44 1371265 | Protected | — |
| +44 1371266 | Protected | — |
| +44 1371267 | Allocated | Digital Space Group Limited |
| +44 1371268 | Protected | — |
| +44 1371269 | Protected | — |
| +44 137127 | Allocated | VoIP-Un Limited |
| +44 137128 | Allocated | Digital Space Group Limited |
| +44 1371290 | Allocated | Voxbone SA |
| +44 1371291 | Protected | — |
| +44 1371292 | Protected | — |
| +44 1371293 | Protected | — |
| +44 1371294 | Protected | — |
| +44 1371295 | Protected | — |
| +44 1371296 | Protected | — |
| +44 1371297 | Protected | — |
| +44 1371298 | Protected | — |
| +44 1371299 | Protected | — |
| +44 137130 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 137131 | Allocated | Telecom2 Limited |
| +44 137132 | Allocated | Nodemax Limited |
| +44 137133 | Allocated | Net-Work Internet Ltd |
| +44 137134 | Protected | — |
| +44 137135 | Allocated | Solutios Limited |
| +44 137136 | Protected | — |
| +44 137137 | Quarantined | — |
| +44 137138 | Allocated | Mars Communications Limited |
| +44 1371390 | Protected | — |
| +44 1371391 | Protected | — |
| +44 1371392 | Allocated | Bicom Systems EURL |
| +44 1371393 | Allocated | 8x8 Communications UK Limited |
| +44 1371394 | Allocated | ICC Networks Ltd |
| +44 1371395 | Allocated | IOVOX Limited |
| +44 1371396 | Allocated | Hello Telecom (UK) Limited |
| +44 1371397 | Allocated | Ziron Limited |
| +44 1371398 | Allocated | Simwood eSMS Limited |
| +44 1371399 | Protected | — |
| +44 137140 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 137141 | Allocated | Invade International Ltd |
| +44 137142 | Allocated | Nexus Telecommunications Limited |
| +44 137143 | Quarantined | — |
| +44 137144 | Allocated | CFL Communications Ltd |
| +44 1371450 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1371451 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1371452 | Protected | — |
| +44 1371453 | Protected | — |
| +44 1371454 | Protected | — |
| +44 1371455 | Protected | — |
| +44 1371456 | Protected | — |
| +44 1371457 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1371458 | Protected | — |
| +44 1371459 | Protected | — |
| +44 137146 | Protected | — |
| +44 137147 | Allocated | TeleWare Group Limited |
| +44 1371480 | Allocated | Digitech Solutions Global Limited |
| +44 1371481 | Allocated | Calltracks Limited |
| +44 1371482 | Allocated | Telappliant Limited |
| +44 1371483 | Allocated | GCI Network Solutions Limited |
| +44 1371484 | Allocated | Windsor Telecom Limited |
| +44 1371485 | Allocated | Suretec Systems Ltd |
| +44 1371486 | Allocated | Telephone Box Limited |
| +44 1371487 | Protected | — |
| +44 1371488 | Allocated | Atomstream Limited |
| +44 1371489 | Allocated | Phone Co-Op Numbering Limited |
| +44 1371490 | Allocated | Invosys Limited |
| +44 1371491 | Allocated | Nexbridge Communications Limited |
| +44 1371492 | Allocated | YayYay Limited |
| +44 1371493 | Allocated | TalkTalk Communications Limited |
| +44 1371494 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1371495 | Allocated | Orbtalk Limited |
| +44 1371496 | Protected | — |
| +44 1371497 | Allocated | Invoco Ltd |
| +44 1371498 | Allocated | Internexus Networks Limited |
| +44 1371499 | Allocated | Sky UK Limited |
| +44 1371500 | Allocated | Content Guru Limited |
| +44 1371501 | Allocated | Nuso Cloud UK Limited |
| +44 1371502 | Allocated | Kalnet4U Ltd |
| +44 1371503 | Allocated | M247 Ltd |
| +44 1371504 | Allocated | Fuse 2 Communications Ltd |
| +44 1371505 | Allocated | Minotaur Telecom Limited |
| +44 1371506 | Protected | — |
| +44 1371507 | Allocated | Redwood Technologies Ltd |
| +44 1371508 | Allocated | Resilient Limited |
| +44 1371509 | Allocated | XoverX Ltd |
| +44 1371510 | Allocated | Adepteo Limited |
| +44 1371511 | Free | — |
| +44 1371512 | Allocated | Colt Technology Services |
| +44 1371513 | Allocated | Sky UK Limited |
| +44 1371514 | Allocated | I.T Communications Limited |
| +44 1371515 | Free | — |
| +44 1371516 | Allocated | Mintaka Limited |
| +44 1371517 | Allocated | Number Services Ltd. |
| +44 1371518 | Allocated | Fuse 2 Communications Ltd |
| +44 1371519 | Allocated | IP Voice Networks Ltd |
| +44 1371520 | Free | — |
| +44 1371521 | Free | — |
| +44 1371522 | Free | — |
| +44 1371523 | Free | — |
| +44 1371524 | Free | — |
| +44 1371525 | Free | — |
| +44 1371526 | Free | — |
| +44 1371527 | Free | — |
| +44 1371528 | Protected | — |
| +44 1371529 | Protected | — |
| +44 1371530 | Allocated | Dial 9 Communications Limited |
| +44 1371531 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1371532 | Allocated | BT |
| +44 1371533 | Allocated | EVE CONNECT LTD |
| +44 1371534 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1371535 | Allocated | DIDWW Ireland Limited |
| +44 1371536 | Allocated | Mi Telecom Limited |
| +44 1371537 | Allocated | SiPalto Ltd |
| +44 1371538 | Allocated | Belgacom International Carrier Services SA |
| +44 1371539 | Allocated | ICUK Computing Services Limited |
| +44 1371540 | Free | — |
| +44 1371541 | Free | — |
| +44 1371542 | Free | — |
| +44 1371543 | Free | — |
| +44 1371544 | Free | — |
| +44 1371545 | Free | — |
| +44 1371546 | Free | — |
| +44 1371547 | Free | — |
| +44 1371548 | Free | — |
| +44 1371549 | Free | — |
| +44 1371550 | Free | — |
| +44 1371551 | Free | — |
| +44 1371552 | Free | — |
| +44 1371553 | Free | — |
| +44 1371554 | Free | — |
| +44 1371555 | Protected | — |
| +44 1371556 | Protected | — |
| +44 1371557 | Protected | — |
| +44 1371558 | Protected | — |
| +44 1371559 | Protected | — |
| +44 1371560 | Protected | — |
| +44 1371561 | Protected | — |
| +44 1371562 | Protected | — |
| +44 1371563 | Protected | — |
| +44 1371564 | Protected | — |
| +44 1371565 | Protected | — |
| +44 1371566 | Protected | — |
| +44 1371567 | Protected | — |
| +44 1371568 | Protected | — |
| +44 1371569 | Protected | — |
| +44 1371570 | Protected | — |
| +44 1371571 | Protected | — |
| +44 1371572 | Protected | — |
| +44 1371573 | Protected | — |
| +44 1371574 | Protected | — |
| +44 1371575 | Protected | — |
| +44 1371576 | Protected | — |
| +44 1371577 | Protected | — |
| +44 1371578 | Protected | — |
| +44 1371579 | Protected | — |
| +44 1371580 | Protected | — |
| +44 1371581 | Protected | — |
| +44 1371582 | Protected | — |
| +44 1371583 | Protected | — |
| +44 1371584 | Protected | — |
| +44 1371585 | Protected | — |
| +44 1371586 | Protected | — |
Related lookups
- 01376 Braintree13 km away
- 01279 Bishops Stortford14 km away
- 01245 Chelmsford17 km away
- 01799 Saffron Walden19 km away
- BT7 allocated blocks on 01371
- Inet Telecoms Ltd (Voipfone)3 allocated blocks on 01371
- Sky UK Limited3 allocated blocks on 01371
- All UK towns A–ZDialling codes by town
- More Essex 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 01371
Where is area code 01371?
01371 is Ofcom's Great Dunmow numbering area, in Essex, East of England England. Its exchange town is in Essex. From abroad, drop the 0 and dial +44 1371.
Do I need to dial 01371 for a local call?
Traditionally not from another 01371 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01371 first always works, and mobiles always need it.
How are 01371 numbers written?
Numbers on 01371 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01371 234 567. From abroad the leading zero is dropped: +44 1371 then the local number.
What was the 01371 area code before?
01371 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 0371. Old signage or stationery showing 0371 refers to the same Great Dunmow numbers.
Which phone companies hold 01371 numbers?
Ofcom lists 86 providers with allocated blocks on 01371. The largest are BT with 7 of the 101 allocated blocks, Inet Telecoms Ltd (Voipfone) with 3 of the 101 allocated blocks and Sky UK Limited with 3 of the 101 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 01371?
By distance between exchange towns, the nearest other codes are 01376 Braintree (13 km), 01279 Bishops Stortford (14 km), 01245 Chelmsford (17 km) and 01799 Saffron Walden (19 km).
How do I report a scam call from a 01371 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.