UK area code
01233 area code — Ashford
01233 is Ofcom’s Ashford (Kent) numbering area, in Kent, South East England. 111 phone companies hold its 185 allocated number blocks. Visitors have checked 14 different 01233 numbers here. Its numbers are written like 01233 234 567. The nearest other codes are 01227 Canterbury (22 km) and 01580 Cranbrook (22 km).
01233 at a glance
- Ofcom area name
- Ashford (Kent)
- County
- Kent
- Council area
- Kent
- Region
- South East England
- Number format
- 01233 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0233)
- Allocated blocks
- 185 of 433 (43%) across 111 providers
- Newest block
- 20 August 2026 (3 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
What people check and report about 01233 numbers
From searches in our lookup form since 13 May 2026 and the verdicts and reports visitors left. A check means someone typed the number in, usually after a missed call.
- Checks
- 20
- Different numbers checked
- 14
- Different people checking
- 18
That makes 01233 numbers the 54th most-checked of the 443 UK area codes people have looked up here.
If a 01233 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.
01233 history and number format
Number format: Numbers on 01233 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01233 234 567.
Before 1995: 01233 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 0233.
Local dialling: Traditionally not from another 01233 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01233 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01233 was allocated on 15 July 1994, and the most recent on 20 August 2026. 3 blocks were allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01233 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01233 numbers
Every Ofcom range holder with blocks on 01233, 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 | 24 | 24 | 15 July 1994 | 5 June 2023 |
| Gamma Telecom Holdings Limited | 10 | 10 | 13 March 2004 | 20 August 2026 |
| Sky UK Limited | 9 | 9 | 21 June 2013 | 13 April 2021 |
| Vodafone Ltd (C&W) | 9 | 9 | 3 October 2013 | 15 November 2021 |
| Colt Technology Services | 5 | 5 | 12 September 2013 | 10 July 2026 |
| GCI Network Solutions Limited | 5 | 5 | 19 April 2017 | 20 December 2023 |
| TalkTalk Communications Limited | 5 | 5 | 17 January 2012 | 23 October 2014 |
| Digital Space Group Limited | 3 | 3 | 29 November 2007 | 12 April 2016 |
| Resilient Limited | 3 | 3 | 18 May 2012 | 18 May 2012 |
| Six Degrees Technology Group Limited | 3 | 3 | 10 January 2020 | 10 January 2020 |
| Barritel Limited | 2 | 2 | 16 February 2006 | 28 November 2022 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 5 October 2023 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| IOVOX Limited | 2 | 2 | 3 April 2012 | 23 December 2016 |
| Media Hawk Ltd | 2 | 2 | 10 April 2013 | 5 March 2021 |
| Twilio Ireland Limited | 2 | 2 | 29 September 2020 | 13 October 2021 |
| Voiceflex Limited | 2 | 2 | 27 July 2007 | 25 July 2024 |
| Voxbone SA | 2 | 2 | 4 December 2007 | 29 January 2025 |
| (AQ) LIMITED | 1 | 1 | 19 October 2011 | 19 October 2011 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 13 January 2020 | 13 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 26 March 2012 | 26 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 1 November 2004 | 1 November 2004 |
| Adepteo Limited | 1 | 1 | 16 January 2017 | 16 January 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 26 February 2009 | 26 February 2009 |
| Atomstream Limited | 1 | 1 | 25 February 2010 | 25 February 2010 |
| Belgacom International Carrier Services SA | 1 | 1 | 3 October 2019 | 3 October 2019 |
| Bicom Systems EURL | 1 | 1 | 2 March 2012 | 2 March 2012 |
| Bink Networks Ltd | 1 | 1 | 27 March 2023 | 27 March 2023 |
| Buzz Networks Limited | 1 | 1 | 1 March 2010 | 1 March 2010 |
| CFL Communications Ltd | 1 | 1 | 7 July 2009 | 7 July 2009 |
Showing the 30 largest of 111 holders.
All number blocks on 01233first 200 of 433, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 123300 | Protected | — |
| +44 123301 | Protected | — |
| +44 123302 | Protected | — |
| +44 123303 | Protected | — |
| +44 123304 | Protected | — |
| +44 123305 | Protected | — |
| +44 123306 | Protected | — |
| +44 123307 | Protected | — |
| +44 123308 | Protected | — |
| +44 123309 | Protected | — |
| +44 123310 | Protected | — |
| +44 123311 | Protected | — |
| +44 123312 | Protected | — |
| +44 123313 | Protected | — |
| +44 123314 | Protected | — |
| +44 123315 | Protected | — |
| +44 123316 | Protected | — |
| +44 123317 | Protected | — |
| +44 123318 | Protected | — |
| +44 123319 | Protected | — |
| +44 123320 | Allocated | BT |
| +44 123321 | Allocated | Vodafone Ltd (C&W) |
| +44 123322 | Allocated | Gamma Telecom Holdings Limited |
| +44 1233230 | Allocated | Linear Telecoms Limited |
| +44 1233231 | Protected | — |
| +44 1233232 | Allocated | Internexus Networks Limited |
| +44 1233233 | Protected | — |
| +44 1233234 | Allocated | Simwood eSMS Limited |
| +44 1233235 | Allocated | Bicom Systems EURL |
| +44 1233236 | Allocated | 8x8 Communications UK Limited |
| +44 1233237 | Allocated | ICC Networks Ltd |
| +44 1233238 | Allocated | IOVOX Limited |
| +44 1233239 | Allocated | Sky UK Limited |
| +44 123324 | Protected | — |
| +44 123325 | Allocated | Syntec Limited |
| +44 123326 | Allocated | TGL Services (UK) Ltd |
| +44 1233270 | Allocated | Datazero Ltd |
| +44 1233271 | Protected | — |
| +44 1233272 | Allocated | Barritel Limited |
| +44 1233273 | Allocated | Windsor Telecom Limited |
| +44 1233274 | Allocated | Core Telecom Limited |
| +44 1233275 | Allocated | Telephone Box Limited |
| +44 1233276 | Protected | — |
| +44 1233277 | Allocated | VoiceHost Limited |
| +44 1233278 | Allocated | Phone Co-Op Numbering Limited |
| +44 1233279 | Allocated | Digital Mail Limited |
| +44 123328 | Allocated | WAVECREST NETWORKS LIMITED |
| +44 1233290 | Protected | — |
| +44 1233291 | Protected | — |
| +44 1233292 | Protected | — |
| +44 1233293 | Protected | — |
| +44 1233294 | Protected | — |
| +44 1233295 | Protected | — |
| +44 1233296 | Protected | — |
| +44 1233297 | Protected | — |
| +44 1233298 | Protected | — |
| +44 1233299 | Protected | — |
| +44 123330 | Allocated | Served Up Limited |
| +44 123331 | Allocated | IV Response Limited |
| +44 1233320 | Allocated | DRD Communications Limited |
| +44 1233321 | Allocated | DRD Communications Limited |
| +44 1233322 | Protected | — |
| +44 1233323 | Allocated | Nexbridge Communications Limited |
| +44 1233324 | Allocated | Firstsound Ltd |
| +44 1233325 | Protected | — |
| +44 1233326 | Allocated | Media Hawk Ltd |
| +44 1233327 | Protected | — |
| +44 1233328 | Allocated | Orbtalk Limited |
| +44 1233329 | Allocated | Sky UK Limited |
| +44 123333 | Allocated | Virgin Media Limited |
| +44 1233340 | Allocated | TalkTalk Communications Limited |
| +44 1233341 | Protected | — |
| +44 1233342 | Allocated | Nexus Telecommunications Limited |
| +44 1233343 | Allocated | GCI Network Solutions Limited |
| +44 1233344 | Allocated | Gamma Telecom Holdings Limited |
| +44 1233345 | Allocated | Nuso Cloud UK Limited |
| +44 1233346 | Protected | — |
| +44 1233347 | Allocated | WightFibre Limited |
| +44 1233348 | Allocated | Atomstream Limited |
| +44 1233349 | Allocated | Buzz Networks Limited |
| +44 1233350 | Allocated | Ccpro Solutions Limited |
| +44 1233351 | Protected | — |
| +44 1233352 | Allocated | Suretec Systems Ltd |
| +44 1233353 | Allocated | Digitech Solutions Global Limited |
| +44 1233354 | Protected | — |
| +44 1233355 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1233356 | Allocated | Invosys Limited |
| +44 1233357 | Allocated | Hello Telecom (UK) Limited |
| +44 1233358 | Allocated | Minotaur Telecom Limited |
| +44 1233359 | Allocated | Invoco Ltd |
| +44 1233360 | Allocated | Ziron Limited |
| +44 1233361 | Allocated | Vodafone Ltd (C&W) |
| +44 1233362 | Allocated | Content Guru Limited |
| +44 1233363 | Allocated | Verizon UK Limited |
| +44 1233364 | Allocated | GCI Network Solutions Limited |
| +44 1233365 | Allocated | Sky UK Limited |
| +44 1233366 | Protected | — |
| +44 1233367 | Allocated | Kalnet4U Ltd |
| +44 1233368 | Allocated | Liquid 11 Limited |
| +44 1233369 | Allocated | XoverX Ltd |
| +44 123337 | Allocated | Redcentric Solutions Limited |
| +44 123338 | Allocated | GCI Network Solutions Limited |
| +44 1233390 | Allocated | Six Degrees Technology Group Limited |
| +44 1233391 | Protected | — |
| +44 1233392 | Protected | — |
| +44 1233393 | Protected | — |
| +44 1233394 | Allocated | Six Degrees Technology Group Limited |
| +44 1233395 | Protected | — |
| +44 1233396 | Protected | — |
| +44 1233397 | Protected | — |
| +44 1233398 | Allocated | Six Degrees Technology Group Limited |
| +44 1233399 | Protected | — |
| +44 1233400 | Protected | — |
| +44 1233401 | Protected | — |
| +44 1233402 | Protected | — |
| +44 1233403 | Protected | — |
| +44 1233404 | Protected | — |
| +44 1233405 | Protected | — |
| +44 1233406 | Protected | — |
| +44 1233407 | Protected | — |
| +44 1233408 | Protected | — |
| +44 1233409 | Protected | — |
| +44 123341 | Allocated | TelNG Limited |
| +44 1233420 | Allocated | (AQ) LIMITED |
| +44 1233421 | Allocated | TalkTalk Communications Limited |
| +44 1233422 | Allocated | Orange Business Holdings UK Limited |
| +44 1233423 | Allocated | Voiceflex Limited |
| +44 1233424 | Allocated | VoIP-Un Limited |
| +44 1233425 | Allocated | Solutios Limited |
| +44 1233426 | Allocated | Telecom2 Limited |
| +44 1233427 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1233428 | Allocated | GCI Network Solutions Limited |
| +44 1233429 | Allocated | Telecoms World Limited |
| +44 1233430 | Allocated | Entanet International Ltd |
| +44 1233431 | Allocated | Digital Space Group Limited |
| +44 1233432 | Protected | — |
| +44 1233433 | Allocated | Planet Telecom Ltd |
| +44 1233434 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 1233435 | Allocated | Nodemax Limited |
| +44 1233436 | Quarantined | — |
| +44 1233437 | Allocated | Mars Communications Limited |
| +44 1233438 | Allocated | Voxbone SA |
| +44 1233439 | Allocated | Fuse 2 Communications Ltd |
| +44 123344 | Allocated | Commi Holdings Limited |
| +44 123345 | Allocated | Localphone Limited |
| +44 1233460 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1233461 | Allocated | Invade International Ltd |
| +44 1233462 | Quarantined | — |
| +44 1233463 | Allocated | Sky UK Limited |
| +44 1233464 | Protected | — |
| +44 1233465 | Allocated | CFL Communications Ltd |
| +44 1233466 | Allocated | Net-Work Internet Ltd |
| +44 1233467 | Allocated | Orbital Net Limited |
| +44 1233468 | Allocated | Digital Space Group Limited |
| +44 1233469 | Allocated | Telappliant Limited |
| +44 123347 | Protected | — |
| +44 1233480 | Protected | — |
| +44 1233481 | Protected | — |
| +44 1233482 | Protected | — |
| +44 1233483 | Protected | — |
| +44 1233484 | Protected | — |
| +44 1233485 | Protected | — |
| +44 1233486 | Protected | — |
| +44 1233487 | Allocated | Spitfire Network Services Limited |
| +44 1233488 | Protected | — |
| +44 1233489 | Protected | — |
| +44 1233490 | Allocated | Resilient Limited |
| +44 1233491 | Allocated | Resilient Limited |
| +44 1233492 | Protected | — |
| +44 1233493 | Protected | — |
| +44 1233494 | Protected | — |
| +44 1233495 | Protected | — |
| +44 1233496 | Protected | — |
| +44 1233497 | Protected | — |
| +44 1233498 | Protected | — |
| +44 1233499 | Allocated | Resilient Limited |
| +44 123350 | Allocated | BT |
| +44 1233510 | Allocated | BT |
| +44 1233511 | Allocated | Redwood Technologies Ltd |
| +44 1233512 | Allocated | Vonage Business Limited |
| +44 1233513 | Allocated | Sky UK Limited |
| +44 1233514 | Allocated | I.T Communications Limited |
| +44 1233515 | Allocated | Colt Technology Services |
| +44 1233516 | Allocated | YayYay Limited |
| +44 1233517 | Allocated | Lanonyx Telecom Limited |
| +44 1233518 | Allocated | M247 Ltd |
| +44 1233519 | Allocated | Sky UK Limited |
| +44 1233520 | Free | — |
| +44 1233521 | Allocated | Sky UK Limited |
| +44 1233522 | Allocated | Colt Technology Services |
| +44 1233523 | Allocated | Mintaka Limited |
| +44 1233524 | Allocated | Adepteo Limited |
| +44 1233525 | Allocated | Gamma Telecom Holdings Limited |
| +44 1233526 | Allocated | IOVOX Limited |
| +44 1233527 | Allocated | Gamma Telecom Holdings Limited |
| +44 1233528 | Allocated | Gamma Telecom Holdings Limited |
| +44 1233529 | Free | — |
| +44 1233530 | Allocated | Number Services Ltd. |
| +44 1233531 | Allocated | Hyperoptic Ltd |
| +44 1233532 | Allocated | Zapappi Ltd |
Related lookups
- 01227 Canterbury22 km away
- 01580 Cranbrook22 km away
- 01797 Rye23 km away
- 01795 Sittingbourne23 km away
- BT24 allocated blocks on 01233
- Gamma Telecom Holdings Limited10 allocated blocks on 01233
- Sky UK Limited9 allocated blocks on 01233
- All UK towns A–ZDialling codes by town
- More Kent codesSame region
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- 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 01233
Where is area code 01233?
01233 is Ofcom's Ashford (Kent) numbering area, in Kent, South East England. Its exchange town is in Kent. From abroad, drop the 0 and dial +44 1233.
Do I need to dial 01233 for a local call?
Traditionally not from another 01233 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01233 first always works, and mobiles always need it.
How are 01233 numbers written?
Numbers on 01233 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01233 234 567. From abroad the leading zero is dropped: +44 1233 then the local number.
What was the 01233 area code before?
01233 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 0233. Old signage or stationery showing 0233 refers to the same Ashford numbers.
Which phone companies hold 01233 numbers?
Ofcom lists 111 providers with allocated blocks on 01233. The largest are BT with 24 of the 185 allocated blocks, Gamma Telecom Holdings Limited with 10 of the 185 allocated blocks and Sky UK Limited with 9 of the 185 allocated blocks. Numbers can be ported, so a number's current provider may differ from the block's holder.
Are 01233 numbers reported as scams?
Visitors have checked 14 different 01233 numbers here 20 times since May 2026.
Which area codes are next to 01233?
By distance between exchange towns, the nearest other codes are 01227 Canterbury (22 km), 01580 Cranbrook (22 km), 01797 Rye (23 km) and 01795 Sittingbourne (23 km).
How do I report a scam call from a 01233 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.