UK area code
01843 area code — Thanet
01843 is Ofcom’s Thanet numbering area, in Kent, South East England. 95 phone companies hold its 166 allocated number blocks. Its numbers are written like 01843 234 567. The nearest other codes are 01227 Canterbury (23 km) and 01304 Dover (28 km).
01843 at a glance
- Ofcom area name
- Thanet
- County
- Kent
- Council area
- Kent
- Region
- South East England
- Number format
- 01843 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0843)
- Allocated blocks
- 166 of 487 (34%) across 95 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 01843 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.
01843 history and number format
Number format: Numbers on 01843 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01843 234 567.
Before 1995: 01843 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 0843.
Local dialling: Traditionally not from another 01843 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01843 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01843 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 01843 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01843 numbers
Every Ofcom range holder with blocks on 01843, 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 | 19 | 19 | 15 July 1994 | 27 March 2023 |
| Sky UK Limited | 15 | 15 | 26 June 2013 | 14 December 2022 |
| GCI Network Solutions Limited | 12 | 12 | 2 May 2017 | 26 February 2024 |
| TalkTalk Communications Limited | 10 | 10 | 20 January 2012 | 12 February 2019 |
| Virgin Media Limited | 5 | 5 | 29 June 2012 | 29 June 2012 |
| GTT-EMEA LTD | 4 | 4 | 13 October 2021 | 13 October 2021 |
| Resilient Limited | 3 | 3 | 18 May 2012 | 18 May 2012 |
| Six Degrees Technology Group Limited | 3 | 3 | 14 January 2020 | 14 January 2020 |
| Vodafone Ltd (C&W) | 3 | 3 | 6 September 2013 | 6 March 2024 |
| Calltracks Limited | 2 | 2 | 20 September 2013 | 2 October 2018 |
| Colt Technology Services | 2 | 2 | 1 May 2014 | 5 April 2019 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 5 October 2023 |
| Datazero Ltd | 2 | 2 | 30 October 2012 | 29 April 2019 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Gamma Telecom Holdings Limited | 2 | 2 | 11 March 2005 | 2 March 2021 |
| (AQ) LIMITED | 1 | 1 | 26 September 2012 | 26 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 27 January 2020 | 27 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 18 April 2012 | 18 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 17 January 2017 | 17 January 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 2 April 2009 | 2 April 2009 |
| Atomstream Limited | 1 | 1 | 26 March 2010 | 26 March 2010 |
| Barritel Limited | 1 | 1 | 9 October 2008 | 9 October 2008 |
| Belgacom International Carrier Services SA | 1 | 1 | 10 July 2020 | 10 July 2020 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 11 April 2023 | 11 April 2023 |
| Buzz Networks Limited | 1 | 1 | 1 March 2010 | 1 March 2010 |
| CFL Communications Ltd | 1 | 1 | 17 July 2009 | 17 July 2009 |
| Content Guru Limited | 1 | 1 | 11 October 2012 | 11 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
Showing the 30 largest of 95 holders.
All number blocks on 01843first 200 of 487, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 184300 | Protected | — |
| +44 184301 | Protected | — |
| +44 184302 | Protected | — |
| +44 184303 | Protected | — |
| +44 184304 | Protected | — |
| +44 184305 | Protected | — |
| +44 184306 | Protected | — |
| +44 184307 | Protected | — |
| +44 184308 | Protected | — |
| +44 184309 | Protected | — |
| +44 184310 | Protected | — |
| +44 184311 | Allocated | GCI Network Solutions Limited |
| +44 184312 | Protected | — |
| +44 184313 | Protected | — |
| +44 184314 | Protected | — |
| +44 184315 | Protected | — |
| +44 184316 | Protected | — |
| +44 184317 | Protected | — |
| +44 184318 | Protected | — |
| +44 184319 | Protected | — |
| +44 184320 | Allocated | BT |
| +44 1843210 | Allocated | BT |
| +44 1843211 | Protected | — |
| +44 1843212 | Protected | — |
| +44 1843213 | Protected | — |
| +44 1843214 | Protected | — |
| +44 1843215 | Allocated | Virgin Media Limited |
| +44 1843216 | Allocated | Virgin Media Limited |
| +44 1843217 | Allocated | Virgin Media Limited |
| +44 1843218 | Allocated | Virgin Media Limited |
| +44 1843219 | Allocated | Virgin Media Limited |
| +44 184322 | Allocated | BT |
| +44 184323 | Allocated | BT |
| +44 1843240 | Allocated | GCI Network Solutions Limited |
| +44 1843241 | Allocated | GCI Network Solutions Limited |
| +44 1843242 | Allocated | GCI Network Solutions Limited |
| +44 1843243 | Allocated | GCI Network Solutions Limited |
| +44 1843244 | Allocated | GCI Network Solutions Limited |
| +44 1843245 | Allocated | GCI Network Solutions Limited |
| +44 1843246 | Allocated | GCI Network Solutions Limited |
| +44 1843247 | Allocated | GCI Network Solutions Limited |
| +44 1843248 | Allocated | GCI Network Solutions Limited |
| +44 1843249 | Allocated | GCI Network Solutions Limited |
| +44 184325 | Allocated | BT |
| +44 184326 | Allocated | Gamma Telecom Holdings Limited |
| +44 1843270 | Allocated | Linear Telecoms Limited |
| +44 1843271 | Allocated | Nexbridge Communications Limited |
| +44 1843272 | Allocated | Orbtalk Limited |
| +44 1843273 | Protected | — |
| +44 1843274 | Allocated | Internexus Networks Limited |
| +44 1843275 | Allocated | Hello Telecom (UK) Limited |
| +44 1843276 | Allocated | Bicom Systems EURL |
| +44 1843277 | Protected | — |
| +44 1843278 | Allocated | Simwood eSMS Limited |
| +44 1843279 | Allocated | Sky UK Limited |
| +44 184328 | Allocated | BT |
| +44 184329 | Allocated | BT |
| +44 1843300 | Allocated | Digitech Solutions Global Limited |
| +44 1843301 | Allocated | ICC Networks Ltd |
| +44 1843302 | Allocated | 8x8 Communications UK Limited |
| +44 1843303 | Protected | — |
| +44 1843304 | Allocated | Sky UK Limited |
| +44 1843305 | Allocated | Invoco Ltd |
| +44 1843306 | Allocated | IOVOX Limited |
| +44 1843307 | Allocated | Ziron Limited |
| +44 1843308 | Allocated | Datazero Ltd |
| +44 1843309 | Allocated | TalkTalk Communications Limited |
| +44 1843310 | Allocated | Kalnet4U Ltd |
| +44 1843311 | Allocated | Nuso Cloud UK Limited |
| +44 1843312 | Allocated | Sky UK Limited |
| +44 1843313 | Allocated | Sky UK Limited |
| +44 1843314 | Allocated | Fuse 2 Communications Ltd |
| +44 1843315 | Allocated | Redwood Technologies Ltd |
| +44 1843316 | Allocated | TalkTalk Communications Limited |
| +44 1843317 | Allocated | Colt Technology Services |
| +44 1843318 | Allocated | Sky UK Limited |
| +44 1843319 | Allocated | TalkTalk Communications Limited |
| +44 1843320 | Protected | — |
| +44 1843321 | Protected | — |
| +44 1843322 | Protected | — |
| +44 1843323 | Protected | — |
| +44 1843324 | Protected | — |
| +44 1843325 | Protected | — |
| +44 1843326 | Protected | — |
| +44 1843327 | Protected | — |
| +44 1843328 | Protected | — |
| +44 1843329 | Protected | — |
| +44 1843330 | Protected | — |
| +44 1843331 | Protected | — |
| +44 1843332 | Protected | — |
| +44 1843333 | Allocated | GTT-EMEA LTD |
| +44 1843334 | Protected | — |
| +44 1843335 | Allocated | GTT-EMEA LTD |
| +44 1843336 | Allocated | GTT-EMEA LTD |
| +44 1843337 | Allocated | GTT-EMEA LTD |
| +44 1843338 | Protected | — |
| +44 1843339 | Protected | — |
| +44 184334 | Allocated | Vodafone Ltd (C&W) |
| +44 184335 | Allocated | Lumen Technologies UK Limited |
| +44 184336 | Allocated | TelNG Limited |
| +44 1843370 | Protected | — |
| +44 1843371 | Protected | — |
| +44 1843372 | Protected | — |
| +44 1843373 | Protected | — |
| +44 1843374 | Protected | — |
| +44 1843375 | Protected | — |
| +44 1843376 | Protected | — |
| +44 1843377 | Allocated | Spitfire Network Services Limited |
| +44 1843378 | Protected | — |
| +44 1843379 | Protected | — |
| +44 184338 | Allocated | Localphone Limited |
| +44 1843390 | Allocated | Resilient Limited |
| +44 1843391 | Allocated | Resilient Limited |
| +44 1843392 | Protected | — |
| +44 1843393 | Protected | — |
| +44 1843394 | Protected | — |
| +44 1843395 | Protected | — |
| +44 1843396 | Protected | — |
| +44 1843397 | Protected | — |
| +44 1843398 | Protected | — |
| +44 1843399 | Allocated | Resilient Limited |
| +44 184340 | Allocated | TGL Services (UK) Ltd |
| +44 184341 | Allocated | Redcentric Solutions Limited |
| +44 184342 | Allocated | Voiceflex Limited |
| +44 184343 | Allocated | (AQ) LIMITED |
| +44 1843440 | Protected | — |
| +44 1843441 | Protected | — |
| +44 1843442 | Protected | — |
| +44 1843443 | Protected | — |
| +44 1843444 | Protected | — |
| +44 1843445 | Protected | — |
| +44 1843446 | Allocated | TalkTalk Communications Limited |
| +44 1843447 | Allocated | TalkTalk Communications Limited |
| +44 1843448 | Allocated | TalkTalk Communications Limited |
| +44 1843449 | Allocated | TalkTalk Communications Limited |
| +44 184345 | Protected | — |
| +44 184346 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 184347 | Allocated | VoIP-Un Limited |
| +44 184348 | Allocated | AQL Wholesale Ltd |
| +44 1843490 | Allocated | Telecom2 Limited |
| +44 1843491 | Allocated | TalkTalk Communications Limited |
| +44 1843492 | Allocated | Barritel Limited |
| +44 1843493 | Allocated | Served Up Limited |
| +44 1843494 | Allocated | Nodemax Limited |
| +44 1843495 | Protected | — |
| +44 1843496 | Protected | — |
| +44 1843497 | Protected | — |
| +44 1843498 | Allocated | Voxbone SA |
| +44 1843499 | Allocated | Net-Work Internet Ltd |
| +44 1843500 | Allocated | Six Degrees Technology Group Limited |
| +44 1843501 | Protected | — |
| +44 1843502 | Protected | — |
| +44 1843503 | Allocated | Six Degrees Technology Group Limited |
| +44 1843504 | Allocated | Six Degrees Technology Group Limited |
| +44 1843505 | Protected | — |
| +44 1843506 | Protected | — |
| +44 1843507 | Protected | — |
| +44 1843508 | Protected | — |
| +44 1843509 | Protected | — |
| +44 184351 | Protected | — |
| +44 1843520 | Allocated | TalkTalk Communications Limited |
| +44 1843521 | Allocated | Zapappi Ltd |
| +44 1843522 | Allocated | Number Services Ltd. |
| +44 1843523 | Allocated | NFON UK Ltd |
| +44 1843524 | Allocated | EVE CONNECT LTD |
| +44 1843525 | Allocated | Adepteo Limited |
| +44 1843526 | Allocated | Calltracks Limited |
| +44 1843527 | Allocated | Sky UK Limited |
| +44 1843528 | Allocated | Fuse 2 Communications Ltd |
| +44 1843529 | Allocated | IP Voice Networks Ltd |
| +44 1843530 | Allocated | DRD Communications Limited |
| +44 1843531 | Allocated | DRD Communications Limited |
| +44 1843532 | Protected | — |
| +44 1843533 | Protected | — |
| +44 1843534 | Protected | — |
| +44 1843535 | Protected | — |
| +44 1843536 | Protected | — |
| +44 1843537 | Protected | — |
| +44 1843538 | Protected | — |
| +44 1843539 | Protected | — |
| +44 1843540 | Allocated | TalkTalk Communications Limited |
| +44 1843541 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1843542 | Allocated | Belgacom International Carrier Services SA |
| +44 1843543 | Allocated | Colt Technology Services |
| +44 1843544 | Allocated | DIDWW Ireland Limited |
| +44 1843545 | Allocated | ICUK Computing Services Limited |
| +44 1843546 | Allocated | SiPalto Ltd |
| +44 1843547 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1843548 | Allocated | Mi Telecom Limited |
| +44 1843549 | Allocated | Dial 9 Communications Limited |
| +44 184355 | Allocated | GCI Network Solutions Limited |
| +44 184356 | Protected | — |
| +44 184357 | Allocated | BT |
| +44 184358 | Allocated | BT |
| +44 184359 | Allocated | BT |
| +44 184360 | Allocated | BT |
| +44 1843610 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1843611 | Allocated | Digital Space Group Limited |
| +44 1843612 | Allocated | Solutios Limited |
| +44 1843613 | Allocated | Sky UK Limited |
Related lookups
- 01227 Canterbury23 km away
- 01304 Dover28 km away
- 01303 Folkestone36 km away
- 01795 Sittingbourne43 km away
- BT19 allocated blocks on 01843
- Sky UK Limited15 allocated blocks on 01843
- GCI Network Solutions Limited12 allocated blocks on 01843
- All UK towns A–ZDialling codes by town
- More Kent 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 01843
Where is area code 01843?
01843 is Ofcom's Thanet numbering area, in Kent, South East England. Its exchange town is in Kent. From abroad, drop the 0 and dial +44 1843.
Do I need to dial 01843 for a local call?
Traditionally not from another 01843 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01843 first always works, and mobiles always need it.
How are 01843 numbers written?
Numbers on 01843 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01843 234 567. From abroad the leading zero is dropped: +44 1843 then the local number.
What was the 01843 area code before?
01843 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 0843. Old signage or stationery showing 0843 refers to the same Thanet numbers.
Which phone companies hold 01843 numbers?
Ofcom lists 95 providers with allocated blocks on 01843. The largest are BT with 19 of the 166 allocated blocks, Sky UK Limited with 15 of the 166 allocated blocks and GCI Network Solutions Limited with 12 of the 166 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 01843?
By distance between exchange towns, the nearest other codes are 01227 Canterbury (23 km), 01304 Dover (28 km), 01303 Folkestone (36 km) and 01795 Sittingbourne (43 km).
How do I report a scam call from a 01843 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.