UK area code
01559 area code — Llandysul
01559 is Ofcom’s Llandysul numbering area, in Ceredigion, Wales. 79 phone companies hold its 91 allocated number blocks. Its numbers are written like 01559 234 567. The nearest other codes are 01545 Llanarth (17 km) and 01570 Lampeter (18 km).
01559 at a glance
- Ofcom area name
- Llandysul
- Council area
- Ceredigion
- Country
- Wales
- Number format
- 01559 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0559)
- Allocated blocks
- 91 of 460 (20%) across 79 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 01559 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.
01559 history and number format
Number format: Numbers on 01559 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01559 234 567.
Before 1995: 01559 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 0559.
Local dialling: Traditionally not from another 01559 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01559 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01559 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 01559 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01559 numbers
Every Ofcom range holder with blocks on 01559, 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 |
|---|---|---|---|---|
| Gamma Telecom Holdings Limited | 6 | 6 | 24 May 2005 | 7 February 2013 |
| BT | 4 | 4 | 15 July 1994 | 15 July 1994 |
| Digital Space Group Limited | 2 | 2 | 14 May 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 2 May 2017 | 20 December 2023 |
| TalkTalk Communications Limited | 2 | 2 | 20 January 2012 | 20 January 2012 |
| (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 | 30 March 2012 | 30 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 13 December 2016 | 13 December 2016 |
| Alnitak GmbH | 1 | 1 | 3 March 2017 | 3 March 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 20 March 2009 | 20 March 2009 |
| Atomstream Limited | 1 | 1 | 12 May 2010 | 12 May 2010 |
| Barritel Limited | 1 | 1 | 21 June 2007 | 21 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 6 February 2020 | 6 February 2020 |
| Bink Networks Ltd | 1 | 1 | 3 April 2023 | 3 April 2023 |
| CFL Communications Ltd | 1 | 1 | 13 July 2009 | 13 July 2009 |
| Calltracks Limited | 1 | 1 | 31 January 2014 | 31 January 2014 |
| Colt Technology Services | 1 | 1 | 20 June 2016 | 20 June 2016 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| Dial 9 Communications Limited | 1 | 1 | 10 December 2019 | 10 December 2019 |
| Digitech Solutions Global Limited | 1 | 1 | 27 April 2010 | 27 April 2010 |
| EVE CONNECT LTD | 1 | 1 | 15 June 2022 | 15 June 2022 |
| Flextel Limited | 1 | 1 | 24 October 2005 | 24 October 2005 |
| Hello Telecom (UK) Limited | 1 | 1 | 11 November 2011 | 11 November 2011 |
| I.T Communications Limited | 1 | 1 | 25 April 2017 | 25 April 2017 |
| ICC Networks Ltd | 1 | 1 | 17 April 2012 | 17 April 2012 |
| ICUK Computing Services Limited | 1 | 1 | 17 June 2020 | 17 June 2020 |
Showing the 30 largest of 79 holders.
All number blocks on 01559first 200 of 460, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 155900 | Protected | — |
| +44 155901 | Protected | — |
| +44 155902 | Protected | — |
| +44 155903 | Protected | — |
| +44 155904 | Protected | — |
| +44 155905 | Protected | — |
| +44 155906 | Protected | — |
| +44 155907 | Protected | — |
| +44 155908 | Protected | — |
| +44 155909 | Protected | — |
| +44 155910 | Protected | — |
| +44 155911 | Protected | — |
| +44 155912 | Protected | — |
| +44 155913 | Protected | — |
| +44 155914 | Protected | — |
| +44 155915 | Protected | — |
| +44 155916 | Protected | — |
| +44 155917 | Protected | — |
| +44 155918 | Protected | — |
| +44 155919 | Protected | — |
| +44 1559200 | Protected | — |
| +44 1559201 | Protected | — |
| +44 1559202 | Protected | — |
| +44 1559203 | Protected | — |
| +44 1559204 | Protected | — |
| +44 1559205 | Protected | — |
| +44 1559206 | Protected | — |
| +44 1559207 | Protected | — |
| +44 1559208 | Protected | — |
| +44 1559209 | Protected | — |
| +44 155921 | Allocated | TelNG Limited |
| +44 155922 | Allocated | Barritel Limited |
| +44 155923 | Allocated | Redcentric Solutions Limited |
| +44 155924 | Allocated | Voiceflex Limited |
| +44 155925 | Protected | — |
| +44 155926 | Allocated | (AQ) LIMITED |
| +44 155927 | Allocated | VoIP-Un Limited |
| +44 155928 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 155929 | Allocated | Localphone Limited |
| +44 1559300 | Protected | — |
| +44 1559301 | Protected | — |
| +44 1559302 | Protected | — |
| +44 1559303 | Protected | — |
| +44 1559304 | Protected | — |
| +44 1559305 | Protected | — |
| +44 1559306 | Protected | — |
| +44 1559307 | Protected | — |
| +44 1559308 | Protected | — |
| +44 1559309 | Protected | — |
| +44 1559310 | Allocated | Linear Telecoms Limited |
| +44 1559311 | Protected | — |
| +44 1559312 | Allocated | 8x8 Communications UK Limited |
| +44 1559313 | Allocated | ICC Networks Ltd |
| +44 1559314 | Allocated | Ziron Limited |
| +44 1559315 | Protected | — |
| +44 1559316 | Allocated | Content Guru Limited |
| +44 1559317 | Allocated | IOVOX Limited |
| +44 1559318 | Allocated | Simwood eSMS Limited |
| +44 1559319 | Allocated | Minotaur Telecom Limited |
| +44 155932 | Protected | — |
| +44 155933 | Allocated | Magrathea Telecommunications Limited |
| +44 155934 | Allocated | Vodafone Ltd (C&W) |
| +44 155935 | Allocated | GCI Network Solutions Limited |
| +44 155936 | Allocated | BT |
| +44 155937 | Allocated | BT |
| +44 155938 | Allocated | BT |
| +44 155939 | Allocated | BT |
| +44 155940 | Allocated | Net-Work Internet Ltd |
| +44 1559410 | Protected | — |
| +44 1559411 | Protected | — |
| +44 1559412 | Protected | — |
| +44 1559413 | Protected | — |
| +44 1559414 | Protected | — |
| +44 1559415 | Protected | — |
| +44 1559416 | Protected | — |
| +44 1559417 | Protected | — |
| +44 1559418 | Allocated | TalkTalk Communications Limited |
| +44 1559419 | Allocated | TalkTalk Communications Limited |
| +44 155942 | Allocated | AQL Wholesale Ltd |
| +44 1559430 | Protected | — |
| +44 1559431 | Protected | — |
| +44 1559432 | Protected | — |
| +44 1559433 | Protected | — |
| +44 1559434 | Protected | — |
| +44 1559435 | Protected | — |
| +44 1559436 | Protected | — |
| +44 1559437 | Allocated | Digital Space Group Limited |
| +44 1559438 | Protected | — |
| +44 1559439 | Protected | — |
| +44 155944 | Allocated | Telecom2 Limited |
| +44 155945 | Allocated | Digital Space Group Limited |
| +44 155946 | Allocated | Nodemax Limited |
| +44 155947 | Protected | — |
| +44 1559480 | Allocated | Voxbone SA |
| +44 1559481 | Protected | — |
| +44 1559482 | Protected | — |
| +44 1559483 | Protected | — |
| +44 1559484 | Protected | — |
| +44 1559485 | Protected | — |
| +44 1559486 | Protected | — |
| +44 1559487 | Protected | — |
| +44 1559488 | Protected | — |
| +44 1559489 | Protected | — |
| +44 155949 | Protected | — |
| +44 155950 | Allocated | Gamma Telecom Holdings Limited |
| +44 1559510 | Protected | — |
| +44 1559511 | Protected | — |
| +44 1559512 | Protected | — |
| +44 1559513 | Protected | — |
| +44 1559514 | Protected | — |
| +44 1559515 | Protected | — |
| +44 1559516 | Protected | — |
| +44 1559517 | Protected | — |
| +44 1559518 | Protected | — |
| +44 1559519 | Protected | — |
| +44 1559520 | Allocated | Adepteo Limited |
| +44 1559521 | Allocated | I.T Communications Limited |
| +44 1559522 | Protected | — |
| +44 1559523 | Allocated | Number Services Ltd. |
| +44 1559524 | Allocated | IP Voice Networks Ltd |
| +44 1559525 | Allocated | Colt Technology Services |
| +44 1559526 | Allocated | Orbtalk Limited |
| +44 1559527 | Allocated | EVE CONNECT LTD |
| +44 1559528 | Allocated | Zapappi Ltd |
| +44 1559529 | Protected | — |
| +44 155953 | Allocated | Served Up Limited |
| +44 155954 | Allocated | TTNC Limited |
| +44 1559550 | Protected | — |
| +44 1559551 | Protected | — |
| +44 1559552 | Protected | — |
| +44 1559553 | Protected | — |
| +44 1559554 | Allocated | Six Degrees Technology Group Limited |
| +44 1559555 | Protected | — |
| +44 1559556 | Protected | — |
| +44 1559557 | Protected | — |
| +44 1559558 | Protected | — |
| +44 1559559 | Protected | — |
| +44 155956 | Protected | — |
| +44 1559570 | Protected | — |
| +44 1559571 | Protected | — |
| +44 1559572 | Protected | — |
| +44 1559573 | Protected | — |
| +44 1559574 | Protected | — |
| +44 1559575 | Protected | — |
| +44 1559576 | Protected | — |
| +44 1559577 | Allocated | Spitfire Network Services Limited |
| +44 1559578 | Protected | — |
| +44 1559579 | Protected | — |
| +44 155958 | Protected | — |
| +44 155959 | Allocated | Flextel Limited |
| +44 1559600 | Protected | — |
| +44 1559601 | Protected | — |
| +44 1559602 | Protected | — |
| +44 1559603 | Protected | — |
| +44 1559604 | Protected | — |
| +44 1559605 | Allocated | Gamma Telecom Holdings Limited |
| +44 1559606 | Allocated | Gamma Telecom Holdings Limited |
| +44 1559607 | Allocated | Gamma Telecom Holdings Limited |
| +44 1559608 | Allocated | Gamma Telecom Holdings Limited |
| +44 1559609 | Allocated | Gamma Telecom Holdings Limited |
| +44 155961 | Allocated | Solutios Limited |
| +44 155962 | Quarantined | — |
| +44 155963 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 155964 | Allocated | Mars Communications Limited |
| +44 155965 | Allocated | Nexus Telecommunications Limited |
| +44 155966 | Protected | — |
| +44 155967 | Quarantined | — |
| +44 155968 | Allocated | CFL Communications Ltd |
| +44 1559690 | Allocated | Calltracks Limited |
| +44 1559691 | Allocated | Telephone Box Limited |
| +44 1559692 | Allocated | Digitech Solutions Global Limited |
| +44 1559693 | Protected | — |
| +44 1559694 | Allocated | GCI Network Solutions Limited |
| +44 1559695 | Allocated | Windsor Telecom Limited |
| +44 1559696 | Allocated | VoiceHost Limited |
| +44 1559697 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1559698 | Allocated | Atomstream Limited |
| +44 1559699 | Allocated | Suretec Systems Ltd |
| +44 155970 | Protected | — |
| +44 1559710 | Allocated | Phone Co-Op Numbering Limited |
| +44 1559711 | Protected | — |
| +44 1559712 | Allocated | Invosys Limited |
| +44 1559713 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1559714 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1559715 | Free | — |
| +44 1559716 | Free | — |
| +44 1559717 | Allocated | Mi Telecom Limited |
| +44 1559718 | Allocated | Belgacom International Carrier Services SA |
| +44 1559719 | Free | — |
| +44 1559720 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1559721 | Allocated | Nexbridge Communications Limited |
| +44 1559722 | Protected | — |
| +44 1559723 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1559724 | Allocated | Invoco Ltd |
| +44 1559725 | Allocated | Internexus Networks Limited |
| +44 1559726 | Protected | — |
| +44 1559727 | Protected | — |
| +44 1559728 | Allocated | Hello Telecom (UK) Limited |
| +44 1559729 | Allocated | XoverX Ltd |
| +44 1559730 | Allocated | Dial 9 Communications Limited |
Related lookups
- 01545 Llanarth17 km away
- 01570 Lampeter18 km away
- 01267 Carmarthen21 km away
- 01239 Cardigan24 km away
- Gamma Telecom Holdings Limited6 allocated blocks on 01559
- BT4 allocated blocks on 01559
- Digital Space Group Limited2 allocated blocks on 01559
- 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 01559
Where is area code 01559?
01559 is Ofcom's Llandysul numbering area, in Ceredigion, Wales. Its exchange town is in Ceredigion. From abroad, drop the 0 and dial +44 1559.
Do I need to dial 01559 for a local call?
Traditionally not from another 01559 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01559 first always works, and mobiles always need it.
How are 01559 numbers written?
Numbers on 01559 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01559 234 567. From abroad the leading zero is dropped: +44 1559 then the local number.
What was the 01559 area code before?
01559 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 0559. Old signage or stationery showing 0559 refers to the same Llandysul numbers.
Which phone companies hold 01559 numbers?
Ofcom lists 79 providers with allocated blocks on 01559. The largest are Gamma Telecom Holdings Limited with 6 of the 91 allocated blocks, BT with 4 of the 91 allocated blocks and Digital Space Group Limited with 2 of the 91 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 01559?
By distance between exchange towns, the nearest other codes are 01545 Llanarth (17 km), 01570 Lampeter (18 km), 01267 Carmarthen (21 km) and 01239 Cardigan (24 km).
How do I report a scam call from a 01559 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.