UK area code
01633 area code — Newport
01633 is Ofcom’s Newport numbering area, in Wales. 107 phone companies hold its 320 allocated number blocks. Its numbers are written like 01633 234 567. The nearest other codes are 01495 Pontypool (15 km) and 029 Cardiff (16 km).
01633 at a glance
- Ofcom area name
- Newport
- Country
- Wales
- Number format
- 01633 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0633)
- Allocated blocks
- 320 of 469 (68%) across 107 providers
- Newest block
- 17 March 2026 (2 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
If a 01633 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.
01633 history and number format
Number format: Numbers on 01633 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01633 234 567.
Before 1995: 01633 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 0633.
Local dialling: Traditionally not from another 01633 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01633 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01633 was allocated on 15 July 1994, and the most recent on 17 March 2026. 2 blocks were allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01633 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01633 numbers
Every Ofcom range holder with blocks on 01633, 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 | 94 | 94 | 15 July 1994 | 22 February 2023 |
| Virgin Media Limited | 30 | 30 | 15 July 1994 | 27 June 2012 |
| Sky UK Limited | 20 | 20 | 20 June 2013 | 12 March 2021 |
| Gamma Telecom Holdings Limited | 19 | 19 | 5 April 2004 | 1 April 2022 |
| Vodafone Ltd (C&W) | 16 | 16 | 18 June 2013 | 10 November 2021 |
| TalkTalk Communications Limited | 11 | 11 | 31 August 2011 | 13 April 2018 |
| Lumen Technologies UK Limited | 7 | 7 | 25 July 2011 | 25 July 2011 |
| GCI Network Solutions Limited | 6 | 6 | 2 May 2017 | 22 December 2023 |
| Magrathea Telecommunications Limited | 6 | 6 | 17 November 2011 | 17 November 2011 |
| Colt Technology Services | 5 | 5 | 29 June 2012 | 14 July 2025 |
| Digital Space Group Limited | 3 | 3 | 16 May 2008 | 12 April 2016 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 5 October 2023 |
| Datazero Ltd | 2 | 2 | 2 November 2010 | 29 April 2019 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| I.T Communications Limited | 2 | 2 | 21 March 2016 | 5 September 2019 |
| IOVOX Limited | 2 | 2 | 3 July 2012 | 18 September 2025 |
| TTNC Limited | 2 | 2 | 14 November 2013 | 15 November 2013 |
| Voxbone SA | 2 | 2 | 28 November 2007 | 17 January 2022 |
| (AQ) LIMITED | 1 | 1 | 12 September 2012 | 12 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 17 January 2020 | 17 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 5 April 2012 | 5 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 1 November 2004 | 1 November 2004 |
| Adepteo Limited | 1 | 1 | 6 December 2016 | 6 December 2016 |
| Aloha Telecommunications Ltd | 1 | 1 | 17 August 2011 | 17 August 2011 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 25 March 2009 | 25 March 2009 |
| Atomstream Limited | 1 | 1 | 23 March 2010 | 23 March 2010 |
| Barritel Limited | 1 | 1 | 17 August 2007 | 17 August 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 20 June 2016 | 20 June 2016 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 11 April 2023 | 11 April 2023 |
Showing the 30 largest of 107 holders.
All number blocks on 01633first 200 of 469, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 163300 | Protected | — |
| +44 163301 | Protected | — |
| +44 163302 | Protected | — |
| +44 163303 | Protected | — |
| +44 163304 | Protected | — |
| +44 163305 | Protected | — |
| +44 163306 | Protected | — |
| +44 163307 | Protected | — |
| +44 163308 | Protected | — |
| +44 163309 | Protected | — |
| +44 163310 | Protected | — |
| +44 1633110 | Protected | — |
| +44 1633111 | Protected | — |
| +44 1633112 | Protected | — |
| +44 1633113 | Protected | — |
| +44 1633114 | Protected | — |
| +44 1633115 | Protected | — |
| +44 1633116 | Protected | — |
| +44 1633117 | Protected | — |
| +44 1633118 | Protected | — |
| +44 1633119 | Protected | — |
| +44 163312 | Protected | — |
| +44 163313 | Protected | — |
| +44 163314 | Protected | — |
| +44 163315 | Protected | — |
| +44 163316 | Protected | — |
| +44 163317 | Protected | — |
| +44 163318 | Protected | — |
| +44 163319 | Protected | — |
| +44 163320 | Allocated | BT |
| +44 163321 | Allocated | BT |
| +44 1633220 | Allocated | BT |
| +44 1633221 | Allocated | BT |
| +44 1633222 | Allocated | BT |
| +44 1633223 | Allocated | BT |
| +44 1633224 | Allocated | BT |
| +44 1633225 | Allocated | BT |
| +44 1633226 | Allocated | BT |
| +44 1633227 | Allocated | BT |
| +44 1633228 | Protected | — |
| +44 1633229 | Allocated | Buzz Networks Limited |
| +44 163323 | Allocated | BT |
| +44 1633240 | Allocated | BT |
| +44 1633241 | Allocated | BT |
| +44 1633242 | Allocated | BT |
| +44 1633243 | Allocated | BT |
| +44 1633244 | Allocated | BT |
| +44 1633245 | Allocated | BT |
| +44 1633246 | Allocated | BT |
| +44 1633247 | Allocated | BT |
| +44 1633248 | Protected | — |
| +44 1633249 | Allocated | Atomstream Limited |
| +44 163325 | Allocated | BT |
| +44 163326 | Allocated | BT |
| +44 163327 | Allocated | BT |
| +44 163328 | Allocated | BT |
| +44 163329 | Allocated | BT |
| +44 1633300 | Allocated | Sky UK Limited |
| +44 1633301 | Protected | — |
| +44 1633302 | Allocated | Orbtalk Limited |
| +44 1633303 | Allocated | OME LOGIC LTD |
| +44 1633304 | Allocated | HAVENSTOKE COMMUNICATIONS LTD |
| +44 1633305 | Allocated | Aloha Telecommunications Ltd |
| +44 1633306 | Protected | — |
| +44 1633307 | Allocated | Hello Telecom (UK) Limited |
| +44 1633308 | Allocated | Internexus Networks Limited |
| +44 1633309 | Allocated | Sky UK Limited |
| +44 163331 | Protected | — |
| +44 1633320 | Allocated | Sky UK Limited |
| +44 1633321 | Allocated | Sky UK Limited |
| +44 1633322 | Protected | — |
| +44 1633323 | Allocated | Nexbridge Communications Limited |
| +44 1633324 | Allocated | Bicom Systems EURL |
| +44 1633325 | Allocated | 8x8 Communications UK Limited |
| +44 1633326 | Allocated | ICC Networks Ltd |
| +44 1633327 | Allocated | Invoco Ltd |
| +44 1633328 | Allocated | Simwood eSMS Limited |
| +44 1633329 | Allocated | Sky UK Limited |
| +44 1633330 | Protected | — |
| +44 1633331 | Protected | — |
| +44 1633332 | Protected | — |
| +44 1633333 | Protected | — |
| +44 1633334 | Allocated | Six Degrees Technology Group Limited |
| +44 1633335 | Protected | — |
| +44 1633336 | Protected | — |
| +44 1633337 | Protected | — |
| +44 1633338 | Protected | — |
| +44 1633339 | Protected | — |
| +44 163334 | Allocated | Flextel Limited |
| +44 1633350 | Allocated | Vodafone Ltd (C&W) |
| +44 1633351 | Allocated | Vodafone Ltd (C&W) |
| +44 1633352 | Allocated | Vodafone Ltd (C&W) |
| +44 1633353 | Allocated | Vodafone Ltd (C&W) |
| +44 1633354 | Allocated | Vodafone Ltd (C&W) |
| +44 1633355 | Allocated | Vodafone Ltd (C&W) |
| +44 1633356 | Allocated | Vodafone Ltd (C&W) |
| +44 1633357 | Allocated | BT |
| +44 1633358 | Allocated | Gamma Telecom Holdings Limited |
| +44 1633359 | Allocated | Sky UK Limited |
| +44 1633360 | Allocated | DRD Communications Limited |
| +44 1633361 | Allocated | DRD Communications Limited |
| +44 1633362 | Protected | — |
| +44 1633363 | Protected | — |
| +44 1633364 | Protected | — |
| +44 1633365 | Protected | — |
| +44 1633366 | Protected | — |
| +44 1633367 | Protected | — |
| +44 1633368 | Protected | — |
| +44 1633369 | Protected | — |
| +44 1633370 | Allocated | TalkTalk Communications Limited |
| +44 1633371 | Allocated | IOVOX Limited |
| +44 1633372 | Allocated | Orange Business Holdings UK Limited |
| +44 1633373 | Allocated | Colt Technology Services |
| +44 1633374 | Allocated | Ziron Limited |
| +44 1633375 | Allocated | Sky UK Limited |
| +44 1633376 | Allocated | TalkTalk Communications Limited |
| +44 1633377 | Allocated | Datazero Ltd |
| +44 1633378 | Allocated | Sky UK Limited |
| +44 1633379 | Allocated | Content Guru Limited |
| +44 1633380 | Allocated | Sky UK Limited |
| +44 1633381 | Allocated | Resilient Limited |
| +44 1633382 | Allocated | TelNG Limited |
| +44 1633383 | Allocated | TTNC Limited |
| +44 1633384 | Protected | — |
| +44 1633385 | Allocated | GTT-EMEA LTD |
| +44 1633386 | Allocated | Vonage Business Limited |
| +44 1633387 | Allocated | Spitfire Network Services Limited |
| +44 1633388 | Protected | — |
| +44 1633389 | Allocated | Commi Holdings Limited |
| +44 163339 | Allocated | TGL Services (UK) Ltd |
| +44 1633400 | Allocated | BT |
| +44 1633401 | Allocated | BT |
| +44 1633402 | Allocated | BT |
| +44 1633403 | Allocated | BT |
| +44 1633404 | Allocated | Liquid 11 Limited |
| +44 1633405 | Allocated | Digitech Solutions Global Limited |
| +44 1633406 | Allocated | Suretec Systems Ltd |
| +44 1633407 | Allocated | Calltracks Limited |
| +44 1633408 | Allocated | Datazero Ltd |
| +44 1633409 | Protected | — |
| +44 163341 | Allocated | BT |
| +44 163342 | Allocated | BT |
| +44 163343 | Allocated | BT |
| +44 1633440 | Allocated | BT |
| +44 1633441 | Allocated | BT |
| +44 1633442 | Allocated | BT |
| +44 1633443 | Protected | — |
| +44 1633444 | Allocated | Windsor Telecom Limited |
| +44 1633445 | Allocated | VoiceHost Limited |
| +44 1633446 | Allocated | Telephone Box Limited |
| +44 1633447 | Protected | — |
| +44 1633448 | Allocated | Phone Co-Op Numbering Limited |
| +44 1633449 | Allocated | BT |
| +44 1633450 | Allocated | BT |
| +44 1633451 | Allocated | BT |
| +44 1633452 | Allocated | Sky UK Limited |
| +44 1633453 | Allocated | Invosys Limited |
| +44 1633454 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1633455 | Allocated | BT |
| +44 1633456 | Allocated | BT |
| +44 1633457 | Protected | — |
| +44 1633458 | Allocated | Firstsound Ltd |
| +44 1633459 | Allocated | BT |
| +44 163346 | Allocated | Vodafone Ltd (C&W) |
| +44 163347 | Allocated | Vodafone Ltd (C&W) |
| +44 163348 | Allocated | BT |
| +44 1633490 | Allocated | EVE CONNECT LTD |
| +44 1633491 | Allocated | I.T Communications Limited |
| +44 1633492 | Allocated | Gamma Telecom Holdings Limited |
| +44 1633493 | Allocated | Gamma Telecom Holdings Limited |
| +44 1633494 | Allocated | Voxbone SA |
| +44 1633495 | Allocated | BT |
| +44 1633496 | Protected | — |
| +44 1633497 | Allocated | ICUK Computing Services Limited |
| +44 1633498 | Allocated | Vodafone Ltd (C&W) |
| +44 1633499 | Allocated | Gamma Telecom Holdings Limited |
| +44 1633500 | Allocated | Magrathea Telecommunications Limited |
| +44 1633501 | Allocated | Magrathea Telecommunications Limited |
| +44 1633502 | Protected | — |
| +44 1633503 | Protected | — |
| +44 1633504 | Allocated | Magrathea Telecommunications Limited |
| +44 1633505 | Allocated | Magrathea Telecommunications Limited |
| +44 1633506 | Protected | — |
| +44 1633507 | Protected | — |
| +44 1633508 | Allocated | Magrathea Telecommunications Limited |
| +44 1633509 | Allocated | Magrathea Telecommunications Limited |
| +44 1633510 | Protected | — |
| +44 1633511 | Protected | — |
| +44 1633512 | Protected | — |
| +44 1633513 | Allocated | Digital Space Group Limited |
| +44 1633514 | Protected | — |
| +44 1633515 | Protected | — |
| +44 1633516 | Protected | — |
| +44 1633517 | Protected | — |
| +44 1633518 | Protected | — |
| +44 1633519 | Protected | — |
| +44 1633520 | Allocated | Linear Telecoms Limited |
| +44 1633521 | Allocated | Media Hawk Ltd |
| +44 1633522 | Allocated | Minotaur Telecom Limited |
| +44 1633523 | Protected | — |
Related lookups
- 01495 Pontypool15 km away
- 029 Cardiff16 km away
- 01275 Clevedon18 km away
- 01291 Chepstow22 km away
- BT94 allocated blocks on 01633
- Virgin Media Limited30 allocated blocks on 01633
- Sky UK Limited20 allocated blocks on 01633
- 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 01633
Where is area code 01633?
01633 is Ofcom's Newport numbering area, in Wales. From abroad, drop the 0 and dial +44 1633.
Do I need to dial 01633 for a local call?
Traditionally not from another 01633 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01633 first always works, and mobiles always need it.
How are 01633 numbers written?
Numbers on 01633 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01633 234 567. From abroad the leading zero is dropped: +44 1633 then the local number.
What was the 01633 area code before?
01633 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 0633. Old signage or stationery showing 0633 refers to the same Newport numbers.
Which phone companies hold 01633 numbers?
Ofcom lists 107 providers with allocated blocks on 01633. The largest are BT with 94 of the 320 allocated blocks, Virgin Media Limited with 30 of the 320 allocated blocks and Sky UK Limited with 20 of the 320 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 01633?
By distance between exchange towns, the nearest other codes are 01495 Pontypool (15 km), 029 Cardiff (16 km), 01275 Clevedon (18 km) and 01291 Chepstow (22 km).
How do I report a scam call from a 01633 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.