UK area code
01943 area code — Guiseley
01943 is Ofcom’s Guiseley numbering area, in West Yorkshire, Yorkshire and The Humber England. 90 phone companies hold its 145 allocated number blocks. Its numbers are written like 01943 234 567. The nearest other codes are 01274 Bradford (7 km) and 0113 Leeds (13 km).
01943 at a glance
- Ofcom area name
- Guiseley
- County
- West Yorkshire
- Council area
- Leeds
- Region
- Yorkshire and The Humber England
- Number format
- 01943 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0943)
- Allocated blocks
- 145 of 424 (34%) across 90 providers
- Newest block
- 17 March 2026 (2 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
If a 01943 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.
01943 history and number format
Number format: Numbers on 01943 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01943 234 567.
Before 1995: 01943 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 0943.
Local dialling: Traditionally not from another 01943 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01943 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01943 was allocated on 15 July 1994, and the most recent on 17 March 2026. 2 blocks were allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01943 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01943 numbers
Every Ofcom range holder with blocks on 01943, 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 |
|---|---|---|---|---|
| Virgin Media Limited | 12 | 12 | 27 June 2012 | 18 March 2016 |
| BT | 11 | 11 | 15 July 1994 | 21 February 2025 |
| GCI Network Solutions Limited | 10 | 10 | 2 May 2017 | 22 December 2023 |
| Gamma Telecom Holdings Limited | 8 | 8 | 15 November 2012 | 15 November 2012 |
| Magrathea Telecommunications Limited | 6 | 6 | 17 November 2011 | 17 November 2011 |
| Barritel Limited | 4 | 4 | 16 November 2011 | 16 November 2011 |
| Vodafone Ltd (C&W) | 4 | 4 | 9 September 2013 | 10 November 2021 |
| TalkTalk Communications Limited | 3 | 3 | 31 August 2011 | 8 February 2013 |
| Calltracks Limited | 2 | 2 | 20 September 2013 | 3 March 2017 |
| Digital Space Group Limited | 2 | 2 | 4 June 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Served Up Limited | 2 | 2 | 1 March 2013 | 1 March 2013 |
| Six Degrees Technology Group Limited | 2 | 2 | 14 January 2020 | 14 January 2020 |
| (AQ) LIMITED | 1 | 1 | 27 September 2012 | 27 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 17 January 2020 | 17 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 19 April 2012 | 19 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 29 November 2016 | 29 November 2016 |
| Alnitak GmbH | 1 | 1 | 20 September 2017 | 20 September 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 7 September 2011 | 7 September 2011 |
| Atomstream Limited | 1 | 1 | 13 April 2010 | 13 April 2010 |
| Belgacom International Carrier Services SA | 1 | 1 | 31 January 2020 | 31 January 2020 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 3 April 2023 | 3 April 2023 |
| CFL Communications Ltd | 1 | 1 | 21 July 2009 | 21 July 2009 |
| Colt Technology Services | 1 | 1 | 7 May 2015 | 7 May 2015 |
| Content Guru Limited | 1 | 1 | 11 October 2012 | 11 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| DIDWW Ireland Limited | 1 | 1 | 22 January 2019 | 22 January 2019 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
Showing the 30 largest of 90 holders.
Openreach exchanges at Guiseley
Exchanges Openreach lists at this location in its copper stop-sell programme, with the date new copper orders stop.
- Guiseley MYGUIStop sell TBD · TBD
All number blocks on 01943first 200 of 424, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 194300 | Protected | — |
| +44 194301 | Protected | — |
| +44 194302 | Protected | — |
| +44 194303 | Protected | — |
| +44 194304 | Protected | — |
| +44 194305 | Protected | — |
| +44 194306 | Protected | — |
| +44 194307 | Protected | — |
| +44 194308 | Protected | — |
| +44 194309 | Protected | — |
| +44 194310 | Protected | — |
| +44 194311 | Protected | — |
| +44 194312 | Protected | — |
| +44 194313 | Protected | — |
| +44 194314 | Protected | — |
| +44 194315 | Protected | — |
| +44 194316 | Protected | — |
| +44 194317 | Protected | — |
| +44 194318 | Protected | — |
| +44 194319 | Protected | — |
| +44 194320 | Allocated | (AQ) LIMITED |
| +44 194321 | Protected | — |
| +44 1943220 | Protected | — |
| +44 1943221 | Protected | — |
| +44 1943222 | Allocated | Net-Work Internet Ltd |
| +44 1943223 | Protected | — |
| +44 1943224 | Protected | — |
| +44 1943225 | Protected | — |
| +44 1943226 | Protected | — |
| +44 1943227 | Protected | — |
| +44 1943228 | Protected | — |
| +44 1943229 | Protected | — |
| +44 194323 | Allocated | VoIP-Un Limited |
| +44 194324 | Allocated | Voiceflex Limited |
| +44 194325 | Allocated | Entanet International Ltd |
| +44 194326 | Allocated | AQL Wholesale Ltd |
| +44 1943270 | Protected | — |
| +44 1943271 | Protected | — |
| +44 1943272 | Protected | — |
| +44 1943273 | Protected | — |
| +44 1943274 | Protected | — |
| +44 1943275 | Protected | — |
| +44 1943276 | Protected | — |
| +44 1943277 | Allocated | Digital Space Group Limited |
| +44 1943278 | Protected | — |
| +44 1943279 | Protected | — |
| +44 194328 | Allocated | Telecom2 Limited |
| +44 194329 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 194330 | Allocated | Digital Space Group Limited |
| +44 194331 | Allocated | Nodemax Limited |
| +44 1943320 | Protected | — |
| +44 1943321 | Protected | — |
| +44 1943322 | Protected | — |
| +44 1943323 | Protected | — |
| +44 1943324 | Protected | — |
| +44 1943325 | Protected | — |
| +44 1943326 | Protected | — |
| +44 1943327 | Protected | — |
| +44 1943328 | Allocated | TalkTalk Communications Limited |
| +44 1943329 | Protected | — |
| +44 1943330 | Allocated | Voxbone SA |
| +44 1943331 | Protected | — |
| +44 1943332 | Protected | — |
| +44 1943333 | Protected | — |
| +44 1943334 | Protected | — |
| +44 1943335 | Protected | — |
| +44 1943336 | Protected | — |
| +44 1943337 | Protected | — |
| +44 1943338 | Protected | — |
| +44 1943339 | Protected | — |
| +44 1943340 | Allocated | Served Up Limited |
| +44 1943341 | Allocated | Served Up Limited |
| +44 1943342 | Protected | — |
| +44 1943343 | Protected | — |
| +44 1943344 | Protected | — |
| +44 1943345 | Protected | — |
| +44 1943346 | Protected | — |
| +44 1943347 | Protected | — |
| +44 1943348 | Protected | — |
| +44 1943349 | Protected | — |
| +44 194335 | Protected | — |
| +44 194336 | Allocated | Solutios Limited |
| +44 194337 | Allocated | Mars Communications Limited |
| +44 194338 | Quarantined | — |
| +44 194339 | Allocated | Invade International Ltd |
| +44 194340 | Allocated | BT |
| +44 194341 | Allocated | Vodafone Ltd (C&W) |
| +44 194342 | Allocated | Redcentric Solutions Limited |
| +44 194343 | Allocated | Virgin Media Limited |
| +44 1943440 | Allocated | Virgin Media Limited |
| +44 1943441 | Allocated | Virgin Media Limited |
| +44 1943442 | Allocated | Virgin Media Limited |
| +44 1943443 | Protected | — |
| +44 1943444 | Allocated | Virgin Media Limited |
| +44 1943445 | Protected | — |
| +44 1943446 | Protected | — |
| +44 1943447 | Protected | — |
| +44 1943448 | Protected | — |
| +44 1943449 | Allocated | Virgin Media Limited |
| +44 194345 | Protected | — |
| +44 194346 | Allocated | BT |
| +44 1943470 | Allocated | Virgin Media Limited |
| +44 1943471 | Allocated | Virgin Media Limited |
| +44 1943472 | Allocated | Virgin Media Limited |
| +44 1943473 | Allocated | Virgin Media Limited |
| +44 1943474 | Allocated | Virgin Media Limited |
| +44 1943475 | Protected | — |
| +44 1943476 | Protected | — |
| +44 1943477 | Protected | — |
| +44 1943478 | Protected | — |
| +44 1943479 | Allocated | Virgin Media Limited |
| +44 1943480 | Allocated | GCI Network Solutions Limited |
| +44 1943481 | Allocated | GCI Network Solutions Limited |
| +44 1943482 | Allocated | GCI Network Solutions Limited |
| +44 1943483 | Allocated | GCI Network Solutions Limited |
| +44 1943484 | Allocated | GCI Network Solutions Limited |
| +44 1943485 | Allocated | GCI Network Solutions Limited |
| +44 1943486 | Protected | — |
| +44 1943487 | Protected | — |
| +44 1943488 | Allocated | GCI Network Solutions Limited |
| +44 1943489 | Allocated | GCI Network Solutions Limited |
| +44 1943490 | Allocated | Magrathea Telecommunications Limited |
| +44 1943491 | Protected | — |
| +44 1943492 | Protected | — |
| +44 1943493 | Protected | — |
| +44 1943494 | Allocated | Magrathea Telecommunications Limited |
| +44 1943495 | Protected | — |
| +44 1943496 | Allocated | Magrathea Telecommunications Limited |
| +44 1943497 | Allocated | Magrathea Telecommunications Limited |
| +44 1943498 | Allocated | Magrathea Telecommunications Limited |
| +44 1943499 | Allocated | Magrathea Telecommunications Limited |
| +44 1943500 | Protected | — |
| +44 1943501 | Protected | — |
| +44 1943502 | Protected | — |
| +44 1943503 | Protected | — |
| +44 1943504 | Protected | — |
| +44 1943505 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1943506 | Protected | — |
| +44 1943507 | Protected | — |
| +44 1943508 | Protected | — |
| +44 1943509 | Protected | — |
| +44 194351 | Allocated | Sky UK Limited |
| +44 194352 | Quarantined | — |
| +44 194353 | Allocated | Telecoms World Limited |
| +44 194354 | Protected | — |
| +44 194355 | Protected | — |
| +44 194356 | Allocated | CFL Communications Ltd |
| +44 194357 | Allocated | Nexus Telecommunications Limited |
| +44 1943580 | Allocated | Atomstream Limited |
| +44 1943581 | Allocated | Calltracks Limited |
| +44 1943582 | Allocated | Datazero Ltd |
| +44 1943583 | Allocated | Windsor Telecom Limited |
| +44 1943584 | Protected | — |
| +44 1943585 | Allocated | Suretec Systems Ltd |
| +44 1943586 | Allocated | Phone Co-Op Numbering Limited |
| +44 1943587 | Allocated | Telephone Box Limited |
| +44 1943588 | Allocated | Telappliant Limited |
| +44 1943589 | Protected | — |
| +44 1943590 | Allocated | Invosys Limited |
| +44 1943591 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1943592 | Allocated | Vodafone Ltd (C&W) |
| +44 1943593 | Allocated | Nexbridge Communications Limited |
| +44 1943594 | Protected | — |
| +44 1943595 | Allocated | Internexus Networks Limited |
| +44 1943596 | Protected | — |
| +44 1943597 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1943598 | Allocated | Hello Telecom (UK) Limited |
| +44 1943599 | Allocated | Bicom Systems EURL |
| +44 194360 | Allocated | BT |
| +44 1943610 | Allocated | Linear Telecoms Limited |
| +44 1943611 | Allocated | ICC Networks Ltd |
| +44 1943612 | Allocated | 8x8 Communications UK Limited |
| +44 1943613 | Allocated | IOVOX Limited |
| +44 1943614 | Protected | — |
| +44 1943615 | Allocated | Ziron Limited |
| +44 1943616 | Protected | — |
| +44 1943617 | Allocated | Content Guru Limited |
| +44 1943618 | Allocated | Simwood eSMS Limited |
| +44 1943619 | Allocated | Invoco Ltd |
| +44 1943620 | Allocated | Six Degrees Technology Group Limited |
| +44 1943621 | Protected | — |
| +44 1943622 | Protected | — |
| +44 1943623 | Protected | — |
| +44 1943624 | Allocated | Six Degrees Technology Group Limited |
| +44 1943625 | Protected | — |
| +44 1943626 | Protected | — |
| +44 1943627 | Protected | — |
| +44 1943628 | Protected | — |
| +44 1943629 | Protected | — |
| +44 194363 | Allocated | GCI Network Solutions Limited |
| +44 194364 | Protected | — |
| +44 1943650 | Protected | — |
| +44 1943651 | Protected | — |
| +44 1943652 | Protected | — |
| +44 1943653 | Protected | — |
| +44 1943654 | Protected | — |
| +44 1943655 | Protected | — |
| +44 1943656 | Protected | — |
| +44 1943657 | Protected | — |
| +44 1943658 | Protected | — |
Related lookups
- 01274 Bradford7 km away
- 0113 Leeds13 km away
- 01423 Harrogate17 km away
- 01535 Keighley17 km away
- Virgin Media Limited12 allocated blocks on 01943
- BT11 allocated blocks on 01943
- GCI Network Solutions Limited10 allocated blocks on 01943
- All UK towns A–ZDialling codes by town
- More West Yorkshire 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 01943
Where is area code 01943?
01943 is Ofcom's Guiseley numbering area, in West Yorkshire, Yorkshire and The Humber England. Its exchange town is in Leeds. From abroad, drop the 0 and dial +44 1943.
Do I need to dial 01943 for a local call?
Traditionally not from another 01943 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01943 first always works, and mobiles always need it.
How are 01943 numbers written?
Numbers on 01943 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01943 234 567. From abroad the leading zero is dropped: +44 1943 then the local number.
What was the 01943 area code before?
01943 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 0943. Old signage or stationery showing 0943 refers to the same Guiseley numbers.
Which phone companies hold 01943 numbers?
Ofcom lists 90 providers with allocated blocks on 01943. The largest are Virgin Media Limited with 12 of the 145 allocated blocks, BT with 11 of the 145 allocated blocks and GCI Network Solutions Limited with 10 of the 145 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 01943?
By distance between exchange towns, the nearest other codes are 01274 Bradford (7 km), 0113 Leeds (13 km), 01423 Harrogate (17 km) and 01535 Keighley (17 km).
How do I report a scam call from a 01943 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.