UK area code
01745 area code — Rhyl
01745 is Ofcom’s Rhyl numbering area, in Denbighshire, Wales. 94 phone companies hold its 145 allocated number blocks. Its numbers are written like 01745 234 567. The nearest other codes are 01492 Colwyn Bay (15 km) and 01824 Ruthin (26 km).
01745 at a glance
- Ofcom area name
- Rhyl
- Council area
- Denbighshire
- Country
- Wales
- Number format
- 01745 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0745)
- Allocated blocks
- 145 of 424 (34%) across 94 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 01745 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.
01745 history and number format
Number format: Numbers on 01745 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01745 234 567.
Before 1995: 01745 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 0745.
Local dialling: Traditionally not from another 01745 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01745 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01745 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 01745 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01745 numbers
Every Ofcom range holder with blocks on 01745, 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 | 27 | 27 | 15 July 1994 | 19 February 2024 |
| Sky UK Limited | 10 | 10 | 12 June 2013 | 9 January 2025 |
| TalkTalk Communications Limited | 7 | 7 | 20 January 2012 | 15 October 2018 |
| Colt Technology Services | 3 | 3 | 19 July 2012 | 23 July 2018 |
| Vodafone Ltd (C&W) | 3 | 3 | 10 September 2013 | 15 November 2021 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 5 October 2023 |
| Digital Space Group Limited | 2 | 2 | 15 March 2016 | 12 April 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 26 April 2017 | 22 December 2023 |
| Lumen Technologies UK Limited | 2 | 2 | 7 June 2006 | 7 June 2006 |
| Six Degrees Technology Group Limited | 2 | 2 | 3 April 2020 | 3 April 2020 |
| (AQ) LIMITED | 1 | 1 | 26 September 2012 | 26 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 21 January 2020 | 21 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 10 April 2012 | 10 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 4 August 2006 | 4 August 2006 |
| Adepteo Limited | 1 | 1 | 6 December 2016 | 6 December 2016 |
| Alnitak GmbH | 1 | 1 | 6 January 2017 | 6 January 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 30 March 2009 | 30 March 2009 |
| Atomstream Limited | 1 | 1 | 29 March 2010 | 29 March 2010 |
| Barritel Limited | 1 | 1 | 23 June 2006 | 23 June 2006 |
| Belgacom International Carrier Services SA | 1 | 1 | 17 November 2020 | 17 November 2020 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 11 April 2023 | 11 April 2023 |
| CFL Communications Ltd | 1 | 1 | 14 July 2009 | 14 July 2009 |
| Calltracks Limited | 1 | 1 | 23 September 2013 | 23 September 2013 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| DIDWW Ireland Limited | 1 | 1 | 27 January 2020 | 27 January 2020 |
| Datazero Ltd | 1 | 1 | 30 October 2012 | 30 October 2012 |
| Dial 9 Communications Limited | 1 | 1 | 8 January 2020 | 8 January 2020 |
Showing the 30 largest of 94 holders.
Openreach exchanges at Rhyl
Exchanges Openreach lists at this location in its copper stop-sell programme, with the date new copper orders stop.
- Rhyl WNREStop sell 01-Nov-22 · Tranche 6
All number blocks on 01745first 200 of 424, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 174500 | Protected | — |
| +44 174501 | Protected | — |
| +44 174502 | Protected | — |
| +44 174503 | Protected | — |
| +44 174504 | Protected | — |
| +44 174505 | Protected | — |
| +44 174506 | Protected | — |
| +44 174507 | Protected | — |
| +44 174508 | Protected | — |
| +44 174509 | Protected | — |
| +44 174510 | Protected | — |
| +44 174511 | Protected | — |
| +44 174512 | Protected | — |
| +44 174513 | Protected | — |
| +44 174514 | Protected | — |
| +44 174515 | Protected | — |
| +44 174516 | Protected | — |
| +44 174517 | Protected | — |
| +44 174518 | Protected | — |
| +44 174519 | Protected | — |
| +44 174520 | Allocated | (AQ) LIMITED |
| +44 174521 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 174522 | Allocated | Net-Work Internet Ltd |
| +44 1745230 | Protected | — |
| +44 1745231 | Protected | — |
| +44 1745232 | Protected | — |
| +44 1745233 | Protected | — |
| +44 1745234 | Protected | — |
| +44 1745235 | Protected | — |
| +44 1745236 | Protected | — |
| +44 1745237 | Allocated | Digital Space Group Limited |
| +44 1745238 | Protected | — |
| +44 1745239 | Protected | — |
| +44 174524 | Allocated | VoIP-Un Limited |
| +44 1745250 | Allocated | TalkTalk Communications Limited |
| +44 1745251 | Allocated | Mars Communications Limited |
| +44 1745252 | Protected | — |
| +44 1745253 | Allocated | Solutios Limited |
| +44 1745254 | Allocated | Served Up Limited |
| +44 1745255 | Allocated | Nodemax Limited |
| +44 1745256 | Allocated | Telecom2 Limited |
| +44 1745257 | Protected | — |
| +44 1745258 | Allocated | Voxbone SA |
| +44 1745259 | Quarantined | — |
| +44 1745260 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1745261 | Allocated | Telecoms World Limited |
| +44 1745262 | Allocated | Invade International Ltd |
| +44 1745263 | Allocated | CFL Communications Ltd |
| +44 1745264 | Quarantined | — |
| +44 1745265 | Allocated | Nexus Telecommunications Limited |
| +44 1745266 | Protected | — |
| +44 1745267 | Protected | — |
| +44 1745268 | Allocated | TeleWare Group Limited |
| +44 1745269 | Allocated | Atomstream Limited |
| +44 1745270 | Allocated | Sky UK Limited |
| +44 1745271 | Allocated | Suretec Systems Ltd |
| +44 1745272 | Allocated | TGL Services (UK) Ltd |
| +44 1745273 | Allocated | Calltracks Limited |
| +44 1745274 | Allocated | GCI Network Solutions Limited |
| +44 1745275 | Allocated | Windsor Telecom Limited |
| +44 1745276 | Protected | — |
| +44 1745277 | Allocated | Telappliant Limited |
| +44 1745278 | Allocated | Telephone Box Limited |
| +44 1745279 | Allocated | Phone Co-Op Numbering Limited |
| +44 1745280 | Protected | — |
| +44 1745281 | Allocated | Invosys Limited |
| +44 1745282 | Allocated | Vodafone Ltd (C&W) |
| +44 1745283 | Allocated | Nexbridge Communications Limited |
| +44 1745284 | Allocated | Sky UK Limited |
| +44 1745285 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1745286 | Protected | — |
| +44 1745287 | Protected | — |
| +44 1745288 | Protected | — |
| +44 1745289 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1745290 | Allocated | Internexus Networks Limited |
| +44 1745291 | Allocated | Hello Telecom (UK) Limited |
| +44 1745292 | Protected | — |
| +44 1745293 | Allocated | Bicom Systems EURL |
| +44 1745294 | Allocated | Sky UK Limited |
| +44 1745295 | Allocated | 8x8 Communications UK Limited |
| +44 1745296 | Allocated | Invoco Ltd |
| +44 1745297 | Allocated | Orbtalk Limited |
| +44 1745298 | Allocated | ICC Networks Ltd |
| +44 1745299 | Allocated | Simwood eSMS Limited |
| +44 174530 | Allocated | Redcentric Solutions Limited |
| +44 1745310 | Allocated | Linear Telecoms Limited |
| +44 1745311 | Protected | — |
| +44 1745312 | Allocated | I.T Communications Limited |
| +44 1745313 | Allocated | Belgacom International Carrier Services SA |
| +44 1745314 | Allocated | Sky UK Limited |
| +44 1745315 | Allocated | Adepteo Limited |
| +44 1745316 | Allocated | IP Voice Networks Ltd |
| +44 1745317 | Allocated | Entanet International Ltd |
| +44 1745318 | Allocated | Zapappi Ltd |
| +44 1745319 | Allocated | Fuse 2 Communications Ltd |
| +44 1745320 | Protected | — |
| +44 1745321 | Protected | — |
| +44 1745322 | Protected | — |
| +44 1745323 | Protected | — |
| +44 1745324 | Protected | — |
| +44 1745325 | Protected | — |
| +44 1745326 | Protected | — |
| +44 1745327 | Protected | — |
| +44 1745328 | Protected | — |
| +44 1745329 | Protected | — |
| +44 174533 | Allocated | BT |
| +44 174534 | Allocated | BT |
| +44 174535 | Allocated | BT |
| +44 174536 | Allocated | BT |
| +44 1745370 | Allocated | Six Degrees Technology Group Limited |
| +44 1745371 | Protected | — |
| +44 1745372 | Protected | — |
| +44 1745373 | Protected | — |
| +44 1745374 | Allocated | Six Degrees Technology Group Limited |
| +44 1745375 | Protected | — |
| +44 1745376 | Protected | — |
| +44 1745377 | Protected | — |
| +44 1745378 | Protected | — |
| +44 1745379 | Protected | — |
| +44 1745380 | Allocated | DRD Communications Limited |
| +44 1745381 | Allocated | DRD Communications Limited |
| +44 1745382 | Protected | — |
| +44 1745383 | Protected | — |
| +44 1745384 | Protected | — |
| +44 1745385 | Protected | — |
| +44 1745386 | Protected | — |
| +44 1745387 | Protected | — |
| +44 1745388 | Protected | — |
| +44 1745389 | Protected | — |
| +44 1745390 | Protected | — |
| +44 1745391 | Protected | — |
| +44 1745392 | Protected | — |
| +44 1745393 | Protected | — |
| +44 1745394 | Protected | — |
| +44 1745395 | Protected | — |
| +44 1745396 | Allocated | Lumen Technologies UK Limited |
| +44 1745397 | Protected | — |
| +44 1745398 | Protected | — |
| +44 1745399 | Allocated | Lumen Technologies UK Limited |
| +44 1745400 | Allocated | IOVOX Limited |
| +44 1745401 | Allocated | Ziron Limited |
| +44 1745402 | Protected | — |
| +44 1745403 | Allocated | TalkTalk Communications Limited |
| +44 1745404 | Allocated | VoiceHost Limited |
| +44 1745405 | Allocated | Colt Technology Services |
| +44 1745406 | Allocated | Datazero Ltd |
| +44 1745407 | Allocated | Sky UK Limited |
| +44 1745408 | Protected | — |
| +44 1745409 | Allocated | Content Guru Limited |
| +44 174541 | Allocated | TelNG Limited |
| +44 1745420 | Allocated | Digitech Solutions Global Limited |
| +44 1745421 | Allocated | BT |
| +44 1745422 | Allocated | BT |
| +44 1745423 | Free | — |
| +44 1745424 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1745425 | Protected | — |
| +44 1745426 | Protected | — |
| +44 1745427 | Protected | — |
| +44 1745428 | Protected | — |
| +44 1745429 | Protected | — |
| +44 174543 | Allocated | TTNC Limited |
| +44 174544 | Allocated | Vodafone Ltd (C&W) |
| +44 174545 | Allocated | BT |
| +44 1745460 | Protected | — |
| +44 1745461 | Protected | — |
| +44 1745462 | Protected | — |
| +44 1745463 | Allocated | Digital Space Group Limited |
| +44 1745464 | Protected | — |
| +44 1745465 | Protected | — |
| +44 1745466 | Protected | — |
| +44 1745467 | Protected | — |
| +44 1745468 | Protected | — |
| +44 1745469 | Protected | — |
| +44 174547 | Allocated | AQL Wholesale Ltd |
| +44 174548 | Allocated | Localphone Limited |
| +44 174549 | Protected | — |
| +44 174550 | Allocated | Magrathea Telecommunications Limited |
| +44 174551 | Allocated | Flextel Limited |
| +44 174552 | Allocated | GCI Network Solutions Limited |
| +44 174553 | Allocated | BT |
| +44 174554 | Allocated | BT |
| +44 174555 | Allocated | BT |
| +44 174556 | Allocated | BT |
| +44 174557 | Allocated | BT |
| +44 174558 | Allocated | BT |
| +44 174559 | Allocated | BT |
| +44 1745600 | Allocated | Minotaur Telecom Limited |
| +44 1745601 | Allocated | Media Hawk Ltd |
| +44 1745602 | Allocated | X-on Health Limited |
| +44 1745603 | Allocated | Kalnet4U Ltd |
| +44 1745604 | Allocated | Sky UK Limited |
| +44 1745605 | Allocated | Nuso Cloud UK Limited |
| +44 1745606 | Allocated | Redwood Technologies Ltd |
| +44 1745607 | Allocated | TalkTalk Communications Limited |
| +44 1745608 | Allocated | Sky UK Limited |
| +44 1745609 | Allocated | XoverX Ltd |
| +44 1745610 | Allocated | BT |
| +44 1745611 | Allocated | Fuse 2 Communications Ltd |
| +44 1745612 | Allocated | Sky UK Limited |
| +44 1745613 | Allocated | Number Services Ltd. |
Related lookups
- 01492 Colwyn Bay15 km away
- 01824 Ruthin26 km away
- 01352 Mold29 km away
- 01690 Betws-y-Coed33 km away
- BT27 allocated blocks on 01745
- Sky UK Limited10 allocated blocks on 01745
- TalkTalk Communications Limited7 allocated blocks on 01745
- 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 01745
Where is area code 01745?
01745 is Ofcom's Rhyl numbering area, in Denbighshire, Wales. Its exchange town is in Denbighshire. From abroad, drop the 0 and dial +44 1745.
Do I need to dial 01745 for a local call?
Traditionally not from another 01745 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01745 first always works, and mobiles always need it.
How are 01745 numbers written?
Numbers on 01745 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01745 234 567. From abroad the leading zero is dropped: +44 1745 then the local number.
What was the 01745 area code before?
01745 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 0745. Old signage or stationery showing 0745 refers to the same Rhyl numbers.
Which phone companies hold 01745 numbers?
Ofcom lists 94 providers with allocated blocks on 01745. The largest are BT with 27 of the 145 allocated blocks, Sky UK Limited with 10 of the 145 allocated blocks and TalkTalk Communications Limited with 7 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 01745?
By distance between exchange towns, the nearest other codes are 01492 Colwyn Bay (15 km), 01824 Ruthin (26 km), 01352 Mold (29 km) and 01690 Betws-y-Coed (33 km).
How do I report a scam call from a 01745 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.