UK area code
01427 area code — Gainsborough
01427 is Ofcom’s Gainsborough numbering area, in Lincolnshire, East Midlands England. 90 phone companies hold its 136 allocated number blocks. Its numbers are written like 01427 234 567. The nearest other codes are 01777 Retford (15 km) and 01724 Scunthorpe (22 km).
01427 at a glance
- Ofcom area name
- Gainsborough
- County
- Lincolnshire
- Council area
- Lincolnshire
- Region
- East Midlands England
- Number format
- 01427 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0427)
- Allocated blocks
- 136 of 460 (30%) across 90 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 01427 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.
01427 history and number format
Number format: Numbers on 01427 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01427 234 567.
Before 1995: 01427 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 0427.
Local dialling: Traditionally not from another 01427 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01427 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01427 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 01427 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01427 numbers
Every Ofcom range holder with blocks on 01427, 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 | 17 | 17 | 15 July 1994 | 4 November 2021 |
| Gamma Telecom Holdings Limited | 7 | 7 | 7 February 2013 | 7 February 2013 |
| Virgin Media Limited | 7 | 7 | 29 June 2012 | 29 June 2012 |
| Vodafone Ltd (C&W) | 7 | 7 | 2 September 2013 | 15 November 2021 |
| Sky UK Limited | 5 | 5 | 2 July 2013 | 18 July 2024 |
| TalkTalk Communications Limited | 4 | 4 | 19 January 2012 | 12 February 2013 |
| GCI Network Solutions Limited | 3 | 3 | 25 April 2017 | 26 February 2024 |
| Digital Space Group Limited | 2 | 2 | 30 November 2007 | 15 March 2016 |
| Digitech Solutions Global Limited | 2 | 2 | 24 March 2010 | 22 June 2012 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| (AQ) LIMITED | 1 | 1 | 11 September 2012 | 11 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 17 January 2020 | 17 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 29 March 2012 | 29 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 1 November 2004 | 1 November 2004 |
| Adepteo Limited | 1 | 1 | 17 January 2017 | 17 January 2017 |
| Alnitak GmbH | 1 | 1 | 31 August 2016 | 31 August 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 5 March 2009 | 5 March 2009 |
| Atomstream Limited | 1 | 1 | 22 March 2010 | 22 March 2010 |
| Barritel Limited | 1 | 1 | 7 June 2007 | 7 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 29 November 2019 | 29 November 2019 |
| 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 | 10 July 2009 | 10 July 2009 |
| Calltracks Limited | 1 | 1 | 31 January 2014 | 31 January 2014 |
| Citrus Telecommunications Ltd | 1 | 1 | 11 April 2006 | 11 April 2006 |
| Colt Technology Services | 1 | 1 | 28 October 2015 | 28 October 2015 |
| Content Guru Limited | 1 | 1 | 15 October 2012 | 15 October 2012 |
| DIDWW Ireland Limited | 1 | 1 | 22 January 2019 | 22 January 2019 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
| Datazero Ltd | 1 | 1 | 2 November 2010 | 2 November 2010 |
Showing the 30 largest of 90 holders.
Openreach exchanges at Gainsborough
Exchanges Openreach lists at this location in its copper stop-sell programme, with the date new copper orders stop.
- Gainsborough SLGBStop sell 04-Jun-24 · Tranche 12
All number blocks on 01427first 200 of 460, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 142700 | Protected | — |
| +44 142701 | Protected | — |
| +44 142702 | Protected | — |
| +44 142703 | Protected | — |
| +44 142704 | Protected | — |
| +44 142705 | Protected | — |
| +44 142706 | Protected | — |
| +44 142707 | Protected | — |
| +44 142708 | Protected | — |
| +44 142709 | Protected | — |
| +44 142710 | Protected | — |
| +44 142711 | Protected | — |
| +44 142712 | Protected | — |
| +44 142713 | Protected | — |
| +44 142714 | Protected | — |
| +44 142715 | Protected | — |
| +44 142716 | Protected | — |
| +44 142717 | Protected | — |
| +44 142718 | Protected | — |
| +44 142719 | Protected | — |
| +44 142720 | Protected | — |
| +44 142721 | Allocated | Barritel Limited |
| +44 142722 | Allocated | Redcentric Solutions Limited |
| +44 1427230 | Protected | — |
| +44 1427231 | Protected | — |
| +44 1427232 | Protected | — |
| +44 1427233 | Protected | — |
| +44 1427234 | Protected | — |
| +44 1427235 | Protected | — |
| +44 1427236 | Protected | — |
| +44 1427237 | Protected | — |
| +44 1427238 | Allocated | TalkTalk Communications Limited |
| +44 1427239 | Allocated | TalkTalk Communications Limited |
| +44 142724 | Protected | — |
| +44 142725 | Allocated | Voiceflex Limited |
| +44 142726 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 142727 | Allocated | (AQ) LIMITED |
| +44 142728 | Allocated | VoIP-Un Limited |
| +44 142729 | Allocated | Digital Space Group Limited |
| +44 142730 | Allocated | Net-Work Internet Ltd |
| +44 1427310 | Allocated | Nodemax Limited |
| +44 1427311 | Allocated | TalkTalk Communications Limited |
| +44 1427312 | Allocated | Solutios Limited |
| +44 1427313 | Protected | — |
| +44 1427314 | Quarantined | — |
| +44 1427315 | Allocated | Mars Communications Limited |
| +44 1427316 | Allocated | Telecom2 Limited |
| +44 1427317 | Allocated | Digital Space Group Limited |
| +44 1427318 | Allocated | Voxbone SA |
| +44 1427319 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1427320 | Allocated | Invade International Ltd |
| +44 1427321 | Protected | — |
| +44 1427322 | Quarantined | — |
| +44 1427323 | Allocated | CFL Communications Ltd |
| +44 1427324 | Allocated | Nexus Telecommunications Limited |
| +44 1427325 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1427326 | Protected | — |
| +44 1427327 | Allocated | Nuso Cloud UK Limited |
| +44 1427328 | Protected | — |
| +44 1427329 | Allocated | Digitech Solutions Global Limited |
| +44 1427330 | Allocated | Sky UK Limited |
| +44 1427331 | Allocated | Suretec Systems Ltd |
| +44 1427332 | Allocated | Atomstream Limited |
| +44 1427333 | Allocated | Telappliant Limited |
| +44 1427334 | Allocated | Calltracks Limited |
| +44 1427335 | Allocated | Windsor Telecom Limited |
| +44 1427336 | Allocated | Simwood eSMS Limited |
| +44 1427337 | Allocated | Datazero Ltd |
| +44 1427338 | Allocated | GCI Network Solutions Limited |
| +44 1427339 | Allocated | VoiceHost Limited |
| +44 1427340 | Allocated | Telephone Box Limited |
| +44 1427341 | Protected | — |
| +44 1427342 | Allocated | Phone Co-Op Numbering Limited |
| +44 1427343 | Protected | — |
| +44 1427344 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1427345 | Allocated | Nexbridge Communications Limited |
| +44 1427346 | Protected | — |
| +44 1427347 | Allocated | Internexus Networks Limited |
| +44 1427348 | Protected | — |
| +44 1427349 | Allocated | Bicom Systems EURL |
| +44 1427350 | Allocated | Hello Telecom (UK) Limited |
| +44 1427351 | Allocated | 8x8 Communications UK Limited |
| +44 1427352 | Allocated | ICC Networks Ltd |
| +44 1427353 | Allocated | Orbtalk Limited |
| +44 1427354 | Protected | — |
| +44 1427355 | Allocated | Invoco Ltd |
| +44 1427356 | Protected | — |
| +44 1427357 | Protected | — |
| +44 1427358 | Protected | — |
| +44 1427359 | Protected | — |
| +44 1427360 | Allocated | IOVOX Limited |
| +44 1427361 | Allocated | Ziron Limited |
| +44 1427362 | Allocated | Sky UK Limited |
| +44 1427363 | Protected | — |
| +44 1427364 | Allocated | TalkTalk Communications Limited |
| +44 1427365 | Allocated | Minotaur Telecom Limited |
| +44 1427366 | Allocated | Content Guru Limited |
| +44 1427367 | Allocated | Media Hawk Ltd |
| +44 1427368 | Allocated | Kalnet4U Ltd |
| +44 1427369 | Allocated | XoverX Ltd |
| +44 1427370 | Allocated | BT |
| +44 1427371 | Allocated | M247 Ltd |
| +44 1427372 | Allocated | Sky UK Limited |
| +44 1427373 | Allocated | GCI Network Solutions Limited |
| +44 1427374 | Allocated | Fuse 2 Communications Ltd |
| +44 1427375 | Allocated | Resilient Limited |
| +44 1427376 | Allocated | YayYay Limited |
| +44 1427377 | Allocated | Redwood Technologies Ltd |
| +44 1427378 | Allocated | Colt Technology Services |
| +44 1427379 | Protected | — |
| +44 1427380 | Protected | — |
| +44 1427381 | Allocated | I.T Communications Limited |
| +44 1427382 | Allocated | Number Services Ltd. |
| +44 1427383 | Allocated | Adepteo Limited |
| +44 1427384 | Allocated | IP Voice Networks Ltd |
| +44 1427385 | Allocated | Invosys Limited |
| +44 1427386 | Allocated | Entanet International Ltd |
| +44 1427387 | Allocated | Alnitak GmbH |
| +44 1427388 | Protected | — |
| +44 1427389 | Allocated | Fuse 2 Communications Ltd |
| +44 1427390 | Allocated | Lanonyx Telecom Limited |
| +44 1427391 | Allocated | Sky UK Limited |
| +44 1427392 | Allocated | BT |
| +44 1427393 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1427394 | Free | — |
| +44 1427395 | Free | — |
| +44 1427396 | Free | — |
| +44 1427397 | Free | — |
| +44 1427398 | Free | — |
| +44 1427399 | Allocated | Bink Networks Ltd |
| +44 1427400 | Protected | — |
| +44 1427401 | Protected | — |
| +44 1427402 | Protected | — |
| +44 1427403 | Protected | — |
| +44 1427404 | Protected | — |
| +44 1427405 | Protected | — |
| +44 1427406 | Protected | — |
| +44 1427407 | Protected | — |
| +44 1427408 | Protected | — |
| +44 1427409 | Protected | — |
| +44 1427410 | Protected | — |
| +44 1427411 | Protected | — |
| +44 1427412 | Protected | — |
| +44 1427413 | Protected | — |
| +44 1427414 | Protected | — |
| +44 1427415 | Protected | — |
| +44 1427416 | Protected | — |
| +44 1427417 | Protected | — |
| +44 1427418 | Protected | — |
| +44 1427419 | Protected | — |
| +44 142742 | Allocated | Vodafone Ltd (C&W) |
| +44 1427430 | Allocated | DIDWW Ireland Limited |
| +44 1427431 | Allocated | Sky UK Limited |
| +44 1427432 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1427433 | Allocated | EVE CONNECT LTD |
| +44 1427434 | Allocated | KCOM Group Ltd |
| +44 1427435 | Allocated | Dial 9 Communications Limited |
| +44 1427436 | Allocated | Mi Telecom Limited |
| +44 1427437 | Allocated | SiPalto Ltd |
| +44 1427438 | Allocated | Belgacom International Carrier Services SA |
| +44 1427439 | Allocated | ICUK Computing Services Limited |
| +44 1427440 | Protected | — |
| +44 1427441 | Protected | — |
| +44 1427442 | Protected | — |
| +44 1427443 | Protected | — |
| +44 1427444 | Protected | — |
| +44 1427445 | Protected | — |
| +44 1427446 | Protected | — |
| +44 1427447 | Protected | — |
| +44 1427448 | Protected | — |
| +44 1427449 | Protected | — |
| +44 1427450 | Protected | — |
| +44 1427451 | Protected | — |
| +44 1427452 | Protected | — |
| +44 1427453 | Protected | — |
| +44 1427454 | Protected | — |
| +44 1427455 | Protected | — |
| +44 1427456 | Protected | — |
| +44 1427457 | Protected | — |
| +44 1427458 | Protected | — |
| +44 1427459 | Protected | — |
| +44 1427460 | Protected | — |
| +44 1427461 | Protected | — |
| +44 1427462 | Protected | — |
| +44 1427463 | Protected | — |
| +44 1427464 | Protected | — |
| +44 1427465 | Protected | — |
| +44 1427466 | Protected | — |
| +44 1427467 | Protected | — |
| +44 1427468 | Protected | — |
| +44 1427469 | Protected | — |
| +44 1427470 | Protected | — |
| +44 1427471 | Protected | — |
| +44 1427472 | Protected | — |
| +44 1427473 | Protected | — |
| +44 1427474 | Protected | — |
| +44 1427475 | Protected | — |
| +44 1427476 | Protected | — |
| +44 1427477 | Protected | — |
| +44 1427478 | Protected | — |
Related lookups
- 01777 Retford15 km away
- 01724 Scunthorpe22 km away
- 01522 Lincoln24 km away
- 01652 Brigg25 km away
- BT17 allocated blocks on 01427
- Gamma Telecom Holdings Limited7 allocated blocks on 01427
- Virgin Media Limited7 allocated blocks on 01427
- All UK towns A–ZDialling codes by town
- More Lincolnshire 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 01427
Where is area code 01427?
01427 is Ofcom's Gainsborough numbering area, in Lincolnshire, East Midlands England. Its exchange town is in Lincolnshire. From abroad, drop the 0 and dial +44 1427.
Do I need to dial 01427 for a local call?
Traditionally not from another 01427 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01427 first always works, and mobiles always need it.
How are 01427 numbers written?
Numbers on 01427 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01427 234 567. From abroad the leading zero is dropped: +44 1427 then the local number.
What was the 01427 area code before?
01427 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 0427. Old signage or stationery showing 0427 refers to the same Gainsborough numbers.
Which phone companies hold 01427 numbers?
Ofcom lists 90 providers with allocated blocks on 01427. The largest are BT with 17 of the 136 allocated blocks, Gamma Telecom Holdings Limited with 7 of the 136 allocated blocks and Virgin Media Limited with 7 of the 136 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 01427?
By distance between exchange towns, the nearest other codes are 01777 Retford (15 km), 01724 Scunthorpe (22 km), 01522 Lincoln (24 km) and 01652 Brigg (25 km).
How do I report a scam call from a 01427 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.