UK area code
01554 area code — Llanelli
01554 is Ofcom’s Llanelli numbering area, in Carmarthenshire, Wales. 87 phone companies hold its 112 allocated number blocks. Its numbers are written like 01554 234 567. The nearest other codes are 01792 Swansea (17 km) and 01269 Ammanford (17 km).
01554 at a glance
- Ofcom area name
- Llanelli
- Council area
- Carmarthenshire
- Country
- Wales
- Number format
- 01554 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0554)
- Allocated blocks
- 112 of 379 (30%) across 87 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 01554 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.
01554 history and number format
Number format: Numbers on 01554 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01554 234 567.
Before 1995: 01554 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 0554.
Local dialling: Traditionally not from another 01554 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01554 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01554 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 01554 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01554 numbers
Every Ofcom range holder with blocks on 01554, 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 | 10 | 10 | 15 July 1994 | 13 October 2023 |
| Virgin Media Limited | 7 | 7 | 29 June 2012 | 29 June 2012 |
| TalkTalk Communications Limited | 5 | 5 | 20 January 2012 | 7 January 2015 |
| Digital Space Group Limited | 2 | 2 | 14 May 2008 | 15 March 2016 |
| Digitech Solutions Global Limited | 2 | 2 | 27 April 2010 | 26 June 2012 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 2 May 2017 | 20 December 2023 |
| Gamma Telecom Holdings Limited | 2 | 2 | 18 April 2005 | 22 September 2021 |
| Vodafone Ltd (C&W) | 2 | 2 | 5 September 2013 | 5 September 2013 |
| (AQ) LIMITED | 1 | 1 | 19 October 2011 | 19 October 2011 |
| 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 | 2 January 2008 | 2 January 2008 |
| Adepteo Limited | 1 | 1 | 21 December 2016 | 21 December 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 19 March 2009 | 19 March 2009 |
| Atomstream Limited | 1 | 1 | 12 May 2010 | 12 May 2010 |
| Barritel Limited | 1 | 1 | 15 August 2006 | 15 August 2006 |
| Bink Networks Ltd | 1 | 1 | 15 September 2022 | 15 September 2022 |
| CFL Communications Ltd | 1 | 1 | 13 July 2009 | 13 July 2009 |
| Colt Technology Services | 1 | 1 | 28 October 2015 | 28 October 2015 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| Core Telecom Limited | 1 | 1 | 6 August 2010 | 6 August 2010 |
| DIDWW Ireland Limited | 1 | 1 | 27 January 2020 | 27 January 2020 |
| Dial 9 Communications Limited | 1 | 1 | 13 January 2020 | 13 January 2020 |
| EVE CONNECT LTD | 1 | 1 | 15 June 2022 | 15 June 2022 |
| Entanet International Ltd | 1 | 1 | 12 December 2017 | 12 December 2017 |
| Flextel Limited | 1 | 1 | 24 October 2005 | 24 October 2005 |
| Hello Telecom (UK) Limited | 1 | 1 | 10 November 2011 | 10 November 2011 |
| I.T Communications Limited | 1 | 1 | 2 September 2016 | 2 September 2016 |
Showing the 30 largest of 87 holders.
Openreach exchanges at Llanelli
Exchanges Openreach lists at this location in its copper stop-sell programme, with the date new copper orders stop.
- Llanelli SWLJStop sell 04-Jun-24 · Tranche 12
All number blocks on 01554first 200 of 379, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 155400 | Protected | — |
| +44 155401 | Protected | — |
| +44 155402 | Protected | — |
| +44 155403 | Protected | — |
| +44 155404 | Protected | — |
| +44 155405 | Protected | — |
| +44 155406 | Protected | — |
| +44 155407 | Protected | — |
| +44 155408 | Protected | — |
| +44 155409 | Protected | — |
| +44 155410 | Protected | — |
| +44 155411 | Protected | — |
| +44 155412 | Protected | — |
| +44 155413 | Protected | — |
| +44 155414 | Protected | — |
| +44 155415 | Protected | — |
| +44 155416 | Protected | — |
| +44 155417 | Protected | — |
| +44 155418 | Protected | — |
| +44 155419 | Protected | — |
| +44 1554200 | Protected | — |
| +44 1554201 | Protected | — |
| +44 1554202 | Protected | — |
| +44 1554203 | Protected | — |
| +44 1554204 | Protected | — |
| +44 1554205 | Protected | — |
| +44 1554206 | Protected | — |
| +44 1554207 | Protected | — |
| +44 1554208 | Protected | — |
| +44 1554209 | Protected | — |
| +44 155421 | Allocated | TelNG Limited |
| +44 1554220 | Protected | — |
| +44 1554221 | Protected | — |
| +44 1554222 | Protected | — |
| +44 1554223 | Protected | — |
| +44 1554224 | Protected | — |
| +44 1554225 | Protected | — |
| +44 1554226 | Protected | — |
| +44 1554227 | Allocated | TalkTalk Communications Limited |
| +44 1554228 | Allocated | TalkTalk Communications Limited |
| +44 1554229 | Allocated | TalkTalk Communications Limited |
| +44 155423 | Allocated | Redcentric Solutions Limited |
| +44 155424 | Allocated | Localphone Limited |
| +44 155425 | Allocated | Voiceflex Limited |
| +44 155426 | Allocated | (AQ) LIMITED |
| +44 155427 | Allocated | VoIP-Un Limited |
| +44 155428 | Protected | — |
| +44 155429 | Allocated | AQL Wholesale Ltd |
| +44 1554300 | Protected | — |
| +44 1554301 | Protected | — |
| +44 1554302 | Protected | — |
| +44 1554303 | Protected | — |
| +44 1554304 | Protected | — |
| +44 1554305 | Protected | — |
| +44 1554306 | Protected | — |
| +44 1554307 | Allocated | Digital Space Group Limited |
| +44 1554308 | Protected | — |
| +44 1554309 | Protected | — |
| +44 155431 | Allocated | Telecom2 Limited |
| +44 155432 | Allocated | Digital Space Group Limited |
| +44 155433 | Allocated | Net-Work Internet Ltd |
| +44 155434 | Allocated | Nodemax Limited |
| +44 1554350 | Free | — |
| +44 1554351 | Free | — |
| +44 1554352 | Free | — |
| +44 1554353 | Protected | — |
| +44 1554354 | Protected | — |
| +44 1554355 | Protected | — |
| +44 1554356 | Protected | — |
| +44 1554357 | Protected | — |
| +44 1554358 | Protected | — |
| +44 1554359 | Protected | — |
| +44 155436 | Protected | — |
| +44 1554370 | Allocated | Voxbone SA |
| +44 1554371 | Protected | — |
| +44 1554372 | Protected | — |
| +44 1554373 | Protected | — |
| +44 1554374 | Protected | — |
| +44 1554375 | Protected | — |
| +44 1554376 | Protected | — |
| +44 1554377 | Protected | — |
| +44 1554378 | Protected | — |
| +44 1554379 | Protected | — |
| +44 155438 | Protected | — |
| +44 155439 | Allocated | Solutios Limited |
| +44 155440 | Allocated | Sky UK Limited |
| +44 155441 | Allocated | Mars Communications Limited |
| +44 155442 | Quarantined | — |
| +44 155443 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 155444 | Protected | — |
| +44 155445 | Allocated | Nexus Telecommunications Limited |
| +44 155446 | Allocated | Telecoms World Limited |
| +44 155447 | Allocated | Invade International Ltd |
| +44 155448 | Quarantined | — |
| +44 155449 | Allocated | CFL Communications Ltd |
| +44 155450 | Protected | — |
| +44 155451 | Protected | — |
| +44 1554520 | Allocated | Digitech Solutions Global Limited |
| +44 1554521 | Allocated | Core Telecom Limited |
| +44 1554522 | Allocated | Suretec Systems Ltd |
| +44 1554523 | Allocated | Atomstream Limited |
| +44 1554524 | Allocated | Windsor Telecom Limited |
| +44 1554525 | Allocated | Telappliant Limited |
| +44 1554526 | Allocated | VoiceHost Limited |
| +44 1554527 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1554528 | Allocated | GCI Network Solutions Limited |
| +44 1554529 | Allocated | Telephone Box Limited |
| +44 1554530 | Protected | — |
| +44 1554531 | Allocated | Phone Co-Op Numbering Limited |
| +44 1554532 | Protected | — |
| +44 1554533 | Allocated | Invosys Limited |
| +44 1554534 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1554535 | Allocated | Bink Networks Ltd |
| +44 1554536 | Allocated | Nexbridge Communications Limited |
| +44 1554537 | Protected | — |
| +44 1554538 | Protected | — |
| +44 1554539 | Allocated | Vodafone Ltd (C&W) |
| +44 1554540 | Allocated | Orbtalk Limited |
| +44 1554541 | Allocated | TalkTalk Communications Limited |
| +44 1554542 | Allocated | Hello Telecom (UK) Limited |
| +44 1554543 | Allocated | Internexus Networks Limited |
| +44 1554544 | Protected | — |
| +44 1554545 | Allocated | Invoco Ltd |
| +44 1554546 | Protected | — |
| +44 1554547 | Allocated | 8x8 Communications UK Limited |
| +44 1554548 | Allocated | ICC Networks Ltd |
| +44 1554549 | Allocated | Ziron Limited |
| +44 1554550 | Allocated | IOVOX Limited |
| +44 1554551 | Allocated | Content Guru Limited |
| +44 1554552 | Allocated | Minotaur Telecom Limited |
| +44 1554553 | Allocated | Media Hawk Ltd |
| +44 1554554 | Protected | — |
| +44 1554555 | Protected | — |
| +44 1554556 | Allocated | Simwood eSMS Limited |
| +44 1554557 | Allocated | Redwood Technologies Ltd |
| +44 1554558 | Protected | — |
| +44 1554559 | Allocated | XoverX Ltd |
| +44 1554560 | Allocated | Nuso Cloud UK Limited |
| +44 1554561 | Allocated | TalkTalk Communications Limited |
| +44 1554562 | Allocated | Kalnet4U Ltd |
| +44 1554563 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1554564 | Allocated | YayYay Limited |
| +44 1554565 | Protected | — |
| +44 1554566 | Allocated | Fuse 2 Communications Ltd |
| +44 1554567 | Protected | — |
| +44 1554568 | Allocated | Entanet International Ltd |
| +44 1554569 | Protected | — |
| +44 1554570 | Allocated | Adepteo Limited |
| +44 1554571 | Allocated | Fuse 2 Communications Ltd |
| +44 1554572 | Allocated | EVE CONNECT LTD |
| +44 1554573 | Allocated | I.T Communications Limited |
| +44 1554574 | Allocated | Mintaka Limited |
| +44 1554575 | Allocated | Colt Technology Services |
| +44 1554576 | Allocated | Zapappi Ltd |
| +44 1554577 | Protected | — |
| +44 1554578 | Allocated | Number Services Ltd. |
| +44 1554579 | Allocated | IP Voice Networks Ltd |
| +44 1554580 | Allocated | Dial 9 Communications Limited |
| +44 1554581 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1554582 | Allocated | DIDWW Ireland Limited |
| +44 1554583 | Allocated | BT |
| +44 1554584 | Allocated | SiPalto Ltd |
| +44 1554585 | Allocated | ICUK Computing Services Limited |
| +44 1554586 | Free | — |
| +44 1554587 | Allocated | Gamma Telecom Holdings Limited |
| +44 1554588 | Allocated | Mi Telecom Limited |
| +44 1554589 | Free | — |
| +44 1554590 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1554591 | Allocated | KCOM Group Ltd |
| +44 1554592 | Free | — |
| +44 1554593 | Free | — |
| +44 1554594 | Allocated | Lanonyx Telecom Limited |
| +44 1554595 | Protected | — |
| +44 1554596 | Protected | — |
| +44 1554597 | Protected | — |
| +44 1554598 | Protected | — |
| +44 1554599 | Protected | — |
| +44 1554600 | Protected | — |
| +44 1554601 | Protected | — |
| +44 1554602 | Protected | — |
| +44 1554603 | Protected | — |
| +44 1554604 | Protected | — |
| +44 1554605 | Protected | — |
| +44 1554606 | Protected | — |
| +44 1554607 | Protected | — |
| +44 1554608 | Protected | — |
| +44 1554609 | Protected | — |
| +44 1554610 | Protected | — |
| +44 1554611 | Protected | — |
| +44 1554612 | Protected | — |
| +44 1554613 | Protected | — |
| +44 1554614 | Protected | — |
| +44 1554615 | Protected | — |
| +44 1554616 | Protected | — |
| +44 1554617 | Protected | — |
| +44 1554618 | Protected | — |
| +44 1554619 | Protected | — |
| +44 1554620 | Protected | — |
| +44 1554621 | Protected | — |
| +44 1554622 | Protected | — |
Related lookups
- 01792 Swansea17 km away
- 01269 Ammanford17 km away
- 01267 Carmarthen22 km away
- 01639 Neath25 km away
- BT10 allocated blocks on 01554
- Virgin Media Limited7 allocated blocks on 01554
- TalkTalk Communications Limited5 allocated blocks on 01554
- 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 01554
Where is area code 01554?
01554 is Ofcom's Llanelli numbering area, in Carmarthenshire, Wales. Its exchange town is in Carmarthenshire. From abroad, drop the 0 and dial +44 1554.
Do I need to dial 01554 for a local call?
Traditionally not from another 01554 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01554 first always works, and mobiles always need it.
How are 01554 numbers written?
Numbers on 01554 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01554 234 567. From abroad the leading zero is dropped: +44 1554 then the local number.
What was the 01554 area code before?
01554 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 0554. Old signage or stationery showing 0554 refers to the same Llanelli numbers.
Which phone companies hold 01554 numbers?
Ofcom lists 87 providers with allocated blocks on 01554. The largest are BT with 10 of the 112 allocated blocks, Virgin Media Limited with 7 of the 112 allocated blocks and TalkTalk Communications Limited with 5 of the 112 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 01554?
By distance between exchange towns, the nearest other codes are 01792 Swansea (17 km), 01269 Ammanford (17 km), 01267 Carmarthen (22 km) and 01639 Neath (25 km).
How do I report a scam call from a 01554 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.