UK area code
01239 area code — Cardigan
01239 is Ofcom’s Cardigan numbering area, in Ceredigion, Wales. 88 phone companies hold its 111 allocated number blocks. Its numbers are written like 01239 234 567. The nearest other codes are 01348 Fishguard (24 km) and 01559 Llandysul (24 km).
01239 at a glance
- Ofcom area name
- Cardigan
- Council area
- Ceredigion
- Country
- Wales
- Number format
- 01239 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0239)
- Allocated blocks
- 111 of 352 (32%) across 88 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 01239 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.
01239 history and number format
Number format: Numbers on 01239 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01239 234 567.
Before 1995: 01239 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 0239.
Local dialling: Traditionally not from another 01239 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01239 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01239 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 01239 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01239 numbers
Every Ofcom range holder with blocks on 01239, 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 | 16 | 16 | 15 July 1994 | 24 October 2024 |
| Inet Telecoms Ltd (Voipfone) | 3 | 3 | 9 November 2012 | 9 November 2012 |
| TalkTalk Communications Limited | 3 | 3 | 17 January 2012 | 14 February 2013 |
| Digital Space Group Limited | 2 | 2 | 29 November 2007 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 20 April 2017 | 20 December 2023 |
| Sky UK Limited | 2 | 2 | 26 August 2014 | 7 June 2024 |
| 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 | 3 March 2017 | 3 March 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 26 February 2009 | 26 February 2009 |
| Atomstream Limited | 1 | 1 | 23 April 2010 | 23 April 2010 |
| Barritel Limited | 1 | 1 | 8 October 2008 | 8 October 2008 |
| Belgacom International Carrier Services SA | 1 | 1 | 20 August 2021 | 20 August 2021 |
| Bicom Systems EURL | 1 | 1 | 2 March 2012 | 2 March 2012 |
| Bink Networks Ltd | 1 | 1 | 29 March 2023 | 29 March 2023 |
| CFL Communications Ltd | 1 | 1 | 7 July 2009 | 7 July 2009 |
| Citrus Telecommunications Ltd | 1 | 1 | 8 March 2006 | 8 March 2006 |
| Colt Technology Services | 1 | 1 | 20 June 2016 | 20 June 2016 |
| 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 | 18 January 2019 | 18 January 2019 |
| 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 |
| EVE CONNECT LTD | 1 | 1 | 25 May 2022 | 25 May 2022 |
| Flextel Limited | 1 | 1 | 19 October 2005 | 19 October 2005 |
Showing the 30 largest of 88 holders.
All number blocks on 01239first 200 of 352, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 123900 | Protected | — |
| +44 123901 | Protected | — |
| +44 123902 | Protected | — |
| +44 123903 | Protected | — |
| +44 123904 | Protected | — |
| +44 123905 | Protected | — |
| +44 123906 | Protected | — |
| +44 123907 | Protected | — |
| +44 123908 | Protected | — |
| +44 123909 | Protected | — |
| +44 123910 | Protected | — |
| +44 123911 | Protected | — |
| +44 123912 | Protected | — |
| +44 123913 | Protected | — |
| +44 123914 | Protected | — |
| +44 123915 | Protected | — |
| +44 123916 | Protected | — |
| +44 123917 | Protected | — |
| +44 123918 | Protected | — |
| +44 123919 | Protected | — |
| +44 123920 | Allocated | Net-Work Internet Ltd |
| +44 123921 | Allocated | Voiceflex Limited |
| +44 123922 | Allocated | VoIP-Un Limited |
| +44 123923 | Allocated | Digital Space Group Limited |
| +44 1239240 | Allocated | Voxbone SA |
| +44 1239241 | Protected | — |
| +44 1239242 | Protected | — |
| +44 1239243 | Protected | — |
| +44 1239244 | Protected | — |
| +44 1239245 | Protected | — |
| +44 1239246 | Protected | — |
| +44 1239247 | Protected | — |
| +44 1239248 | Protected | — |
| +44 1239249 | Protected | — |
| +44 1239250 | Protected | — |
| +44 1239251 | Protected | — |
| +44 1239252 | Protected | — |
| +44 1239253 | Protected | — |
| +44 1239254 | Protected | — |
| +44 1239255 | Protected | — |
| +44 1239256 | Protected | — |
| +44 1239257 | Allocated | Digital Space Group Limited |
| +44 1239258 | Protected | — |
| +44 1239259 | Protected | — |
| +44 123926 | Allocated | Telecom2 Limited |
| +44 123927 | Allocated | Nodemax Limited |
| +44 123928 | Allocated | Redcentric Solutions Limited |
| +44 123929 | Allocated | Solutios Limited |
| +44 123930 | Allocated | TTNC Limited |
| +44 1239310 | Protected | — |
| +44 1239311 | Protected | — |
| +44 1239312 | Protected | — |
| +44 1239313 | Protected | — |
| +44 1239314 | Protected | — |
| +44 1239315 | Protected | — |
| +44 1239316 | Protected | — |
| +44 1239317 | Protected | — |
| +44 1239318 | Protected | — |
| +44 1239319 | Protected | — |
| +44 123932 | Protected | — |
| +44 123933 | Allocated | Served Up Limited |
| +44 1239340 | Protected | — |
| +44 1239341 | Protected | — |
| +44 1239342 | Protected | — |
| +44 1239343 | Protected | — |
| +44 1239344 | Protected | — |
| +44 1239345 | Protected | — |
| +44 1239346 | Protected | — |
| +44 1239347 | Protected | — |
| +44 1239348 | Protected | — |
| +44 1239349 | Protected | — |
| +44 123935 | Allocated | TelNG Limited |
| +44 123936 | Allocated | Localphone Limited |
| +44 1239370 | Protected | — |
| +44 1239371 | Protected | — |
| +44 1239372 | Protected | — |
| +44 1239373 | Protected | — |
| +44 1239374 | Protected | — |
| +44 1239375 | Protected | — |
| +44 1239376 | Protected | — |
| +44 1239377 | Allocated | Spitfire Network Services Limited |
| +44 1239378 | Protected | — |
| +44 1239379 | Protected | — |
| +44 123938 | Protected | — |
| +44 123939 | Allocated | AQL Wholesale Ltd |
| +44 123940 | Allocated | Commi Holdings Limited |
| +44 123941 | Allocated | Barritel Limited |
| +44 123942 | Protected | — |
| +44 123943 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 123944 | Quarantined | — |
| +44 123945 | Allocated | Mars Communications Limited |
| +44 1239460 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1239461 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1239462 | Protected | — |
| +44 1239463 | Protected | — |
| +44 1239464 | Protected | — |
| +44 1239465 | Protected | — |
| +44 1239466 | Protected | — |
| +44 1239467 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1239468 | Protected | — |
| +44 1239469 | Protected | — |
| +44 123947 | Allocated | Telecoms World Limited |
| +44 123948 | Allocated | Invade International Ltd |
| +44 123949 | Allocated | Nexus Telecommunications Limited |
| +44 123950 | Quarantined | — |
| +44 123951 | Allocated | CFL Communications Ltd |
| +44 1239520 | Protected | — |
| +44 1239521 | Protected | — |
| +44 1239522 | Protected | — |
| +44 1239523 | Allocated | TeleWare Group Limited |
| +44 1239524 | Protected | — |
| +44 1239525 | Protected | — |
| +44 1239526 | Protected | — |
| +44 1239527 | Protected | — |
| +44 1239528 | Protected | — |
| +44 1239529 | Protected | — |
| +44 123953 | Protected | — |
| +44 1239540 | Allocated | Digitech Solutions Global Limited |
| +44 1239541 | Allocated | Suretec Systems Ltd |
| +44 1239542 | Allocated | Atomstream Limited |
| +44 1239543 | Allocated | YayYay Limited |
| +44 1239544 | Allocated | Telappliant Limited |
| +44 1239545 | Allocated | Datazero Ltd |
| +44 1239546 | Allocated | Windsor Telecom Limited |
| +44 1239547 | Allocated | GCI Network Solutions Limited |
| +44 1239548 | Allocated | Telephone Box Limited |
| +44 1239549 | Protected | — |
| +44 1239550 | Allocated | Phone Co-Op Numbering Limited |
| +44 1239551 | Allocated | Digital Mail Limited |
| +44 1239552 | Protected | — |
| +44 1239553 | Allocated | Invosys Limited |
| +44 1239554 | Protected | — |
| +44 1239555 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1239556 | Protected | — |
| +44 1239557 | Allocated | M247 Ltd |
| +44 1239558 | Allocated | Internexus Networks Limited |
| +44 1239559 | Allocated | Minotaur Telecom Limited |
| +44 1239560 | Allocated | Bicom Systems EURL |
| +44 1239561 | Allocated | 8x8 Communications UK Limited |
| +44 1239562 | Allocated | Simwood eSMS Limited |
| +44 1239563 | Allocated | IOVOX Limited |
| +44 1239564 | Allocated | ICC Networks Ltd |
| +44 1239565 | Allocated | Hello Telecom (UK) Limited |
| +44 1239566 | Allocated | Ziron Limited |
| +44 1239567 | Protected | — |
| +44 1239568 | Allocated | Content Guru Limited |
| +44 1239569 | Protected | — |
| +44 1239570 | Allocated | Media Hawk Ltd |
| +44 1239571 | Allocated | Sky UK Limited |
| +44 1239572 | Allocated | Kalnet4U Ltd |
| +44 1239573 | Protected | — |
| +44 1239574 | Allocated | Nuso Cloud UK Limited |
| +44 1239575 | Allocated | Redwood Technologies Ltd |
| +44 1239576 | Protected | — |
| +44 1239577 | Allocated | Fuse 2 Communications Ltd |
| +44 1239578 | Protected | — |
| +44 1239579 | Allocated | XoverX Ltd |
| +44 1239580 | Protected | — |
| +44 1239581 | Protected | — |
| +44 1239582 | Protected | — |
| +44 1239583 | Protected | — |
| +44 1239584 | Protected | — |
| +44 1239585 | Protected | — |
| +44 1239586 | Protected | — |
| +44 1239587 | Protected | — |
| +44 1239588 | Protected | — |
| +44 1239589 | Protected | — |
| +44 1239590 | Protected | — |
| +44 1239591 | Protected | — |
| +44 1239592 | Protected | — |
| +44 1239593 | Protected | — |
| +44 1239594 | Protected | — |
| +44 1239595 | Protected | — |
| +44 1239596 | Protected | — |
| +44 1239597 | Protected | — |
| +44 1239598 | Protected | — |
| +44 1239599 | Protected | — |
| +44 123960 | Allocated | TGL Services (UK) Ltd |
| +44 123961 | Allocated | BT |
| +44 123962 | Allocated | BT |
| +44 123963 | Allocated | Vodafone Ltd (C&W) |
| +44 123964 | Allocated | BT |
| +44 123965 | Allocated | BT |
| +44 123966 | Allocated | GCI Network Solutions Limited |
| +44 1239670 | Allocated | Linear Telecoms Limited |
| +44 1239671 | Protected | — |
| +44 1239672 | Protected | — |
| +44 1239673 | Protected | — |
| +44 1239674 | Protected | — |
| +44 1239675 | Protected | — |
| +44 1239676 | Protected | — |
| +44 1239677 | Protected | — |
| +44 1239678 | Protected | — |
| +44 1239679 | Protected | — |
| +44 123968 | Allocated | BT |
| +44 123969 | Allocated | BT |
| +44 123970 | Protected | — |
| +44 123971 | Allocated | BT |
| +44 1239720 | Protected | — |
| +44 1239721 | Protected | — |
Related lookups
- 01348 Fishguard24 km away
- 01559 Llandysul24 km away
- 01545 Llanarth27 km away
- 01437 Haverfordwest27 km away
- BT16 allocated blocks on 01239
- Inet Telecoms Ltd (Voipfone)3 allocated blocks on 01239
- TalkTalk Communications Limited3 allocated blocks on 01239
- All UK towns A–ZDialling codes by town
- More Wales 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 01239
Where is area code 01239?
01239 is Ofcom's Cardigan numbering area, in Ceredigion, Wales. Its exchange town is in Ceredigion. From abroad, drop the 0 and dial +44 1239.
Do I need to dial 01239 for a local call?
Traditionally not from another 01239 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01239 first always works, and mobiles always need it.
How are 01239 numbers written?
Numbers on 01239 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01239 234 567. From abroad the leading zero is dropped: +44 1239 then the local number.
What was the 01239 area code before?
01239 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 0239. Old signage or stationery showing 0239 refers to the same Cardigan numbers.
Which phone companies hold 01239 numbers?
Ofcom lists 88 providers with allocated blocks on 01239. The largest are BT with 16 of the 111 allocated blocks, Inet Telecoms Ltd (Voipfone) with 3 of the 111 allocated blocks and TalkTalk Communications Limited with 3 of the 111 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 01239?
By distance between exchange towns, the nearest other codes are 01348 Fishguard (24 km), 01559 Llandysul (24 km), 01545 Llanarth (27 km) and 01437 Haverfordwest (27 km).
How do I report a scam call from a 01239 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.