UK area code
01235 area code — Abingdon
01235 is Ofcom’s Abingdon numbering area, in Oxfordshire, South East England. 103 phone companies hold its 181 allocated number blocks. Its numbers are written like 01235 234 567. The nearest other codes are 01865 Oxford (14 km) and 01993 Witney (20 km).
01235 at a glance
- Ofcom area name
- Abingdon
- County
- Oxfordshire
- Council area
- Oxfordshire
- Region
- South East England
- Number format
- 01235 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0235)
- Allocated blocks
- 181 of 406 (45%) across 103 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 01235 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.
01235 history and number format
Number format: Numbers on 01235 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01235 234 567.
Before 1995: 01235 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 0235.
Local dialling: Traditionally not from another 01235 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01235 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01235 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 01235 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01235 numbers
Every Ofcom range holder with blocks on 01235, 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 | 26 | 26 | 15 July 1994 | 19 February 2024 |
| Virgin Media Limited | 11 | 11 | 18 May 1995 | 28 June 2012 |
| Vodafone Ltd (C&W) | 10 | 10 | 3 October 2013 | 1 April 2019 |
| Gamma Telecom Holdings Limited | 7 | 7 | 15 March 2005 | 17 February 2022 |
| Magrathea Telecommunications Limited | 7 | 7 | 18 November 2011 | 18 November 2011 |
| Colt Technology Services | 5 | 5 | 21 April 2015 | 4 March 2024 |
| GTT-EMEA LTD | 5 | 5 | 14 October 2021 | 14 October 2021 |
| TalkTalk Communications Limited | 5 | 5 | 31 August 2011 | 10 November 2014 |
| GCI Network Solutions Limited | 3 | 3 | 20 April 2017 | 22 December 2023 |
| Barritel Limited | 2 | 2 | 8 October 2008 | 28 November 2022 |
| Digital Space Group Limited | 2 | 2 | 29 November 2007 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| IOVOX Limited | 2 | 2 | 3 April 2012 | 23 December 2016 |
| Served Up Limited | 2 | 2 | 1 March 2013 | 1 March 2013 |
| Six Degrees Technology Group Limited | 2 | 2 | 6 April 2020 | 6 April 2020 |
| Telecom2 Limited | 2 | 2 | 11 September 2009 | 11 September 2009 |
| Voxbone SA | 2 | 2 | 5 December 2011 | 3 August 2023 |
| (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 |
| Alnitak GmbH | 1 | 1 | 26 October 2016 | 26 October 2016 |
| 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 103 holders.
All number blocks on 01235first 200 of 406, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 123500 | Protected | — |
| +44 123501 | Protected | — |
| +44 123502 | Protected | — |
| +44 123503 | Protected | — |
| +44 123504 | Protected | — |
| +44 123505 | Protected | — |
| +44 123506 | Protected | — |
| +44 123507 | Protected | — |
| +44 123508 | Protected | — |
| +44 123509 | Protected | — |
| +44 123510 | Protected | — |
| +44 123511 | Protected | — |
| +44 123512 | Protected | — |
| +44 123513 | Protected | — |
| +44 123514 | Protected | — |
| +44 123515 | Protected | — |
| +44 123516 | Protected | — |
| +44 123517 | Protected | — |
| +44 123518 | Protected | — |
| +44 123519 | Protected | — |
| +44 123520 | Allocated | Virgin Media Limited |
| +44 123521 | Allocated | Virgin Media Limited |
| +44 1235220 | Protected | — |
| +44 1235221 | Allocated | Virgin Media Limited |
| +44 1235222 | Allocated | Virgin Media Limited |
| +44 1235223 | Allocated | Virgin Media Limited |
| +44 1235224 | Allocated | Virgin Media Limited |
| +44 1235225 | Allocated | Virgin Media Limited |
| +44 1235226 | Allocated | Virgin Media Limited |
| +44 1235227 | Allocated | Virgin Media Limited |
| +44 1235228 | Allocated | Virgin Media Limited |
| +44 1235229 | Allocated | Virgin Media Limited |
| +44 123523 | Allocated | Vodafone Ltd (C&W) |
| +44 1235240 | Allocated | Linear Telecoms Limited |
| +44 1235241 | Allocated | Internexus Networks Limited |
| +44 1235242 | Allocated | Simwood eSMS Limited |
| +44 1235243 | Allocated | 8x8 Communications UK Limited |
| +44 1235244 | Allocated | IOVOX Limited |
| +44 1235245 | Protected | — |
| +44 1235246 | Allocated | Bicom Systems EURL |
| +44 1235247 | Allocated | ICC Networks Ltd |
| +44 1235248 | Allocated | Ziron Limited |
| +44 1235249 | Protected | — |
| +44 123525 | Allocated | AQL Wholesale Ltd |
| +44 1235260 | Allocated | Six Degrees Technology Group Limited |
| +44 1235261 | Protected | — |
| +44 1235262 | Protected | — |
| +44 1235263 | Protected | — |
| +44 1235264 | Allocated | Six Degrees Technology Group Limited |
| +44 1235265 | Protected | — |
| +44 1235266 | Protected | — |
| +44 1235267 | Protected | — |
| +44 1235268 | Protected | — |
| +44 1235269 | Protected | — |
| +44 123527 | Allocated | Flextel Limited |
| +44 123528 | Allocated | TTNC Limited |
| +44 1235290 | Protected | — |
| +44 1235291 | Protected | — |
| +44 1235292 | Protected | — |
| +44 1235293 | Protected | — |
| +44 1235294 | Protected | — |
| +44 1235295 | Protected | — |
| +44 1235296 | Protected | — |
| +44 1235297 | Protected | — |
| +44 1235298 | Protected | — |
| +44 1235299 | Protected | — |
| +44 1235300 | Allocated | Net-Work Internet Ltd |
| +44 1235301 | Protected | — |
| +44 1235302 | Protected | — |
| +44 1235303 | Protected | — |
| +44 1235304 | Protected | — |
| +44 1235305 | Protected | — |
| +44 1235306 | Protected | — |
| +44 1235307 | Protected | — |
| +44 1235308 | Protected | — |
| +44 1235309 | Protected | — |
| +44 1235310 | Protected | — |
| +44 1235311 | Protected | — |
| +44 1235312 | Protected | — |
| +44 1235313 | Allocated | GCI Network Solutions Limited |
| +44 1235314 | Protected | — |
| +44 1235315 | Protected | — |
| +44 1235316 | Protected | — |
| +44 1235317 | Protected | — |
| +44 1235318 | Protected | — |
| +44 1235319 | Protected | — |
| +44 123532 | Allocated | Digital Space Group Limited |
| +44 1235330 | Allocated | Voxbone SA |
| +44 1235331 | Protected | — |
| +44 1235332 | Protected | — |
| +44 1235333 | Protected | — |
| +44 1235334 | Protected | — |
| +44 1235335 | Protected | — |
| +44 1235336 | Protected | — |
| +44 1235337 | Protected | — |
| +44 1235338 | Protected | — |
| +44 1235339 | Protected | — |
| +44 1235340 | Allocated | Telecom2 Limited |
| +44 1235341 | Allocated | Telecom2 Limited |
| +44 1235342 | Protected | — |
| +44 1235343 | Protected | — |
| +44 1235344 | Allocated | Nuso Cloud UK Limited |
| +44 1235345 | Protected | — |
| +44 1235346 | Allocated | Atomstream Limited |
| +44 1235347 | Free | — |
| +44 1235348 | Free | — |
| +44 1235349 | Free | — |
| +44 1235350 | Allocated | Nodemax Limited |
| +44 1235351 | Allocated | Commi Holdings Limited |
| +44 1235352 | Allocated | TalkTalk Communications Limited |
| +44 1235353 | Allocated | Solutios Limited |
| +44 1235354 | Protected | — |
| +44 1235355 | Allocated | Gamma Telecom Holdings Limited |
| +44 1235356 | Allocated | Barritel Limited |
| +44 1235357 | Protected | — |
| +44 1235358 | Allocated | Digital Space Group Limited |
| +44 1235359 | Allocated | TalkTalk Communications Limited |
| +44 1235360 | Quarantined | — |
| +44 1235361 | Allocated | Mars Communications Limited |
| +44 1235362 | Allocated | BT |
| +44 1235363 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1235364 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1235365 | Allocated | Invade International Ltd |
| +44 1235366 | Quarantined | — |
| +44 1235367 | Allocated | CFL Communications Ltd |
| +44 1235368 | Allocated | TeleWare Group Limited |
| +44 1235369 | Protected | — |
| +44 1235370 | Allocated | Nexus Telecommunications Limited |
| +44 1235371 | Allocated | Digitech Solutions Global Limited |
| +44 1235372 | Allocated | Datazero Ltd |
| +44 1235373 | Allocated | Telappliant Limited |
| +44 1235374 | Allocated | Barritel Limited |
| +44 1235375 | Allocated | Windsor Telecom Limited |
| +44 1235376 | Allocated | Buzz Networks Limited |
| +44 1235377 | Protected | — |
| +44 1235378 | Allocated | Suretec Systems Ltd |
| +44 1235379 | Allocated | Core Telecom Limited |
| +44 1235380 | Allocated | VoiceHost Limited |
| +44 1235381 | Allocated | Telephone Box Limited |
| +44 1235382 | Protected | — |
| +44 1235383 | Allocated | Phone Co-Op Numbering Limited |
| +44 1235384 | Protected | — |
| +44 1235385 | Allocated | Invosys Limited |
| +44 1235386 | Allocated | Hello Telecom (UK) Limited |
| +44 1235387 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1235388 | Allocated | Digital Mail Limited |
| +44 1235389 | Allocated | Minotaur Telecom Limited |
| +44 1235390 | Allocated | Vonage Business Limited |
| +44 1235391 | Allocated | I.T Communications Limited |
| +44 1235392 | Protected | — |
| +44 1235393 | Allocated | Resilient Limited |
| +44 1235394 | Allocated | BT |
| +44 1235395 | Allocated | BT |
| +44 1235396 | Allocated | M247 Ltd |
| +44 1235397 | Protected | — |
| +44 1235398 | Protected | — |
| +44 1235399 | Allocated | YayYay Limited |
| +44 123540 | Allocated | Vodafone Ltd (C&W) |
| +44 123541 | Allocated | Sky UK Limited |
| +44 123542 | Allocated | Gamma Telecom Holdings Limited |
| +44 123543 | Allocated | BT |
| +44 123544 | Allocated | BT |
| +44 123545 | Allocated | Verizon UK Limited |
| +44 123546 | Allocated | BT |
| +44 123547 | Allocated | GCI Network Solutions Limited |
| +44 1235480 | Protected | — |
| +44 1235481 | Protected | — |
| +44 1235482 | Protected | — |
| +44 1235483 | Protected | — |
| +44 1235484 | Protected | — |
| +44 1235485 | Protected | — |
| +44 1235486 | Protected | — |
| +44 1235487 | Protected | — |
| +44 1235488 | Protected | — |
| +44 1235489 | Protected | — |
| +44 123549 | Allocated | TelNG Limited |
| +44 1235500 | Allocated | DRD Communications Limited |
| +44 1235501 | Protected | — |
| +44 1235502 | Protected | — |
| +44 1235503 | Protected | — |
| +44 1235504 | Allocated | HAVENSTOKE COMMUNICATIONS LTD |
| +44 1235505 | Protected | — |
| +44 1235506 | Allocated | Orbtalk Limited |
| +44 1235507 | Allocated | Invoco Ltd |
| +44 1235508 | Allocated | Nexbridge Communications Limited |
| +44 1235509 | Protected | — |
| +44 123551 | Allocated | BT |
| +44 123552 | Allocated | BT |
| +44 123553 | Allocated | BT |
| +44 123554 | Allocated | BT |
| +44 123555 | Allocated | BT |
| +44 123556 | Allocated | Vodafone Ltd (C&W) |
| +44 1235570 | Protected | — |
| +44 1235571 | Protected | — |
| +44 1235572 | Protected | — |
| +44 1235573 | Protected | — |
| +44 1235574 | Protected | — |
| +44 1235575 | Protected | — |
| +44 1235576 | Protected | — |
| +44 1235577 | Allocated | Served Up Limited |
Related lookups
- 01865 Oxford14 km away
- 01993 Witney20 km away
- 01367 Faringdon21 km away
- 01844 Thame22 km away
- BT26 allocated blocks on 01235
- Virgin Media Limited11 allocated blocks on 01235
- Vodafone Ltd (C&W)10 allocated blocks on 01235
- All UK towns A–ZDialling codes by town
- More Oxfordshire 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 01235
Where is area code 01235?
01235 is Ofcom's Abingdon numbering area, in Oxfordshire, South East England. Its exchange town is in Oxfordshire. From abroad, drop the 0 and dial +44 1235.
Do I need to dial 01235 for a local call?
Traditionally not from another 01235 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01235 first always works, and mobiles always need it.
How are 01235 numbers written?
Numbers on 01235 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01235 234 567. From abroad the leading zero is dropped: +44 1235 then the local number.
What was the 01235 area code before?
01235 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 0235. Old signage or stationery showing 0235 refers to the same Abingdon numbers.
Which phone companies hold 01235 numbers?
Ofcom lists 103 providers with allocated blocks on 01235. The largest are BT with 26 of the 181 allocated blocks, Virgin Media Limited with 11 of the 181 allocated blocks and Vodafone with 10 of the 181 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 01235?
By distance between exchange towns, the nearest other codes are 01865 Oxford (14 km), 01993 Witney (20 km), 01367 Faringdon (21 km) and 01844 Thame (22 km).
How do I report a scam call from a 01235 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.