UK area code
01335 area code — Ashbourne
01335 is Ofcom’s Ashbourne numbering area, in Derbyshire, East Midlands England. 85 phone companies hold its 105 allocated number blocks. Its numbers are written like 01335 234 567. The nearest other codes are 01538 Ipstones (16 km) and 01629 Matlock (18 km).
01335 at a glance
- Ofcom area name
- Ashbourne
- County
- Derbyshire
- Council area
- Derbyshire
- Region
- East Midlands England
- Number format
- 01335 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0335)
- Allocated blocks
- 105 of 379 (28%) across 85 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 01335 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.
01335 history and number format
Number format: Numbers on 01335 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01335 234 567.
Before 1995: 01335 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 0335.
Local dialling: Traditionally not from another 01335 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01335 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01335 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 01335 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01335 numbers
Every Ofcom range holder with blocks on 01335, 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 | 11 | 11 | 15 July 1994 | 23 September 2020 |
| Inet Telecoms Ltd (Voipfone) | 3 | 3 | 5 August 2009 | 5 August 2009 |
| TalkTalk Communications Limited | 3 | 3 | 18 January 2012 | 13 February 2013 |
| Vodafone Ltd (C&W) | 3 | 3 | 1 August 2013 | 23 November 2021 |
| Digital Space Group Limited | 2 | 2 | 29 November 2007 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 25 April 2017 | 22 December 2023 |
| Sky UK Limited | 2 | 2 | 2 July 2013 | 22 September 2021 |
| (AQ) LIMITED | 1 | 1 | 11 September 2012 | 11 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 13 January 2020 | 13 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 27 March 2012 | 27 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 21 June 2006 | 21 June 2006 |
| Adepteo Limited | 1 | 1 | 17 January 2017 | 17 January 2017 |
| Alnitak GmbH | 1 | 1 | 25 April 2017 | 25 April 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 3 March 2009 | 3 March 2009 |
| Atomstream Limited | 1 | 1 | 26 April 2010 | 26 April 2010 |
| Barritel Limited | 1 | 1 | 6 June 2007 | 6 June 2007 |
| 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 |
| CFL Communications Ltd | 1 | 1 | 9 July 2009 | 9 July 2009 |
| Calltracks Limited | 1 | 1 | 31 January 2014 | 31 January 2014 |
| Colt Technology Services | 1 | 1 | 22 April 2015 | 22 April 2015 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| DIDWW Ireland Limited | 1 | 1 | 18 February 2021 | 18 February 2021 |
| Datazero Ltd | 1 | 1 | 2 November 2010 | 2 November 2010 |
| Dial 9 Communications Limited | 1 | 1 | 10 December 2019 | 10 December 2019 |
| Digitech Solutions Global Limited | 1 | 1 | 28 April 2010 | 28 April 2010 |
| EVE CONNECT LTD | 1 | 1 | 15 June 2022 | 15 June 2022 |
| Flextel Limited | 1 | 1 | 17 November 2005 | 17 November 2005 |
Showing the 30 largest of 85 holders.
All number blocks on 01335first 200 of 379, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 133500 | Protected | — |
| +44 133501 | Protected | — |
| +44 133502 | Protected | — |
| +44 133503 | Protected | — |
| +44 133504 | Protected | — |
| +44 133505 | Protected | — |
| +44 133506 | Protected | — |
| +44 133507 | Protected | — |
| +44 133508 | Protected | — |
| +44 133509 | Protected | — |
| +44 133510 | Protected | — |
| +44 133511 | Protected | — |
| +44 133512 | Protected | — |
| +44 133513 | Protected | — |
| +44 133514 | Protected | — |
| +44 133515 | Protected | — |
| +44 133516 | Protected | — |
| +44 133517 | Protected | — |
| +44 133518 | Protected | — |
| +44 133519 | Protected | — |
| +44 133520 | Protected | — |
| +44 133521 | Allocated | Gamma Telecom Holdings Limited |
| +44 133522 | Allocated | GCI Network Solutions Limited |
| +44 133523 | Allocated | BT |
| +44 1335240 | Allocated | Linear Telecoms Limited |
| +44 1335241 | Allocated | Invoco Ltd |
| +44 1335242 | Allocated | Internexus Networks Limited |
| +44 1335243 | Protected | — |
| +44 1335244 | Allocated | Orbtalk Limited |
| +44 1335245 | Allocated | Minotaur Telecom Limited |
| +44 1335246 | Allocated | Simwood eSMS Limited |
| +44 1335247 | Allocated | Bicom Systems EURL |
| +44 1335248 | Allocated | 8x8 Communications UK Limited |
| +44 1335249 | Allocated | ICC Networks Ltd |
| +44 1335250 | Protected | — |
| +44 1335251 | Protected | — |
| +44 1335252 | Protected | — |
| +44 1335253 | Protected | — |
| +44 1335254 | Protected | — |
| +44 1335255 | Protected | — |
| +44 1335256 | Protected | — |
| +44 1335257 | Protected | — |
| +44 1335258 | Protected | — |
| +44 1335259 | Allocated | Vodafone Ltd (C&W) |
| +44 133526 | Protected | — |
| +44 1335270 | Protected | — |
| +44 1335271 | Protected | — |
| +44 1335272 | Protected | — |
| +44 1335273 | Protected | — |
| +44 1335274 | Protected | — |
| +44 1335275 | Protected | — |
| +44 1335276 | Protected | — |
| +44 1335277 | Protected | — |
| +44 1335278 | Protected | — |
| +44 1335279 | Protected | — |
| +44 133528 | Allocated | Vodafone Ltd (C&W) |
| +44 133529 | Allocated | Flextel Limited |
| +44 133530 | Allocated | BT |
| +44 133531 | Allocated | BT |
| +44 133532 | Allocated | BT |
| +44 133533 | Allocated | BT |
| +44 133534 | Allocated | BT |
| +44 133535 | Allocated | BT |
| +44 133536 | Allocated | BT |
| +44 133537 | Allocated | BT |
| +44 133538 | Allocated | Magrathea Telecommunications Limited |
| +44 133539 | Allocated | BT |
| +44 133540 | Allocated | Barritel Limited |
| +44 1335410 | Protected | — |
| +44 1335411 | Protected | — |
| +44 1335412 | Protected | — |
| +44 1335413 | Protected | — |
| +44 1335414 | Protected | — |
| +44 1335415 | Protected | — |
| +44 1335416 | Protected | — |
| +44 1335417 | Protected | — |
| +44 1335418 | Allocated | TalkTalk Communications Limited |
| +44 1335419 | Allocated | TalkTalk Communications Limited |
| +44 133542 | Protected | — |
| +44 133543 | Allocated | (AQ) LIMITED |
| +44 133544 | Allocated | Net-Work Internet Ltd |
| +44 133545 | Allocated | Voiceflex Limited |
| +44 133546 | Allocated | Digital Space Group Limited |
| +44 1335470 | Allocated | Voxbone SA |
| +44 1335471 | Protected | — |
| +44 1335472 | Protected | — |
| +44 1335473 | Protected | — |
| +44 1335474 | Protected | — |
| +44 1335475 | Protected | — |
| +44 1335476 | Protected | — |
| +44 1335477 | Protected | — |
| +44 1335478 | Protected | — |
| +44 1335479 | Protected | — |
| +44 133548 | Allocated | VoIP-Un Limited |
| +44 133549 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 1335500 | Protected | — |
| +44 1335501 | Protected | — |
| +44 1335502 | Protected | — |
| +44 1335503 | Protected | — |
| +44 1335504 | Protected | — |
| +44 1335505 | Protected | — |
| +44 1335506 | Protected | — |
| +44 1335507 | Allocated | Digital Space Group Limited |
| +44 1335508 | Protected | — |
| +44 1335509 | Protected | — |
| +44 133551 | Allocated | Telecom2 Limited |
| +44 133552 | Allocated | Nodemax Limited |
| +44 133553 | Protected | — |
| +44 133554 | Allocated | Solutios Limited |
| +44 133555 | Allocated | Mars Communications Limited |
| +44 133556 | Quarantined | — |
| +44 133557 | Allocated | Nexus Telecommunications Limited |
| +44 133558 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 133559 | Quarantined | — |
| +44 133560 | Allocated | CFL Communications Ltd |
| +44 133561 | Allocated | TeleWare Group Limited |
| +44 133562 | Protected | — |
| +44 1335630 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1335631 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1335632 | Protected | — |
| +44 1335633 | Protected | — |
| +44 1335634 | Protected | — |
| +44 1335635 | Protected | — |
| +44 1335636 | Protected | — |
| +44 1335637 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1335638 | Protected | — |
| +44 1335639 | Protected | — |
| +44 133564 | Protected | — |
| +44 1335650 | Allocated | Digitech Solutions Global Limited |
| +44 1335651 | Allocated | Calltracks Limited |
| +44 1335652 | Allocated | Telephone Box Limited |
| +44 1335653 | Allocated | Suretec Systems Ltd |
| +44 1335654 | Allocated | VoiceHost Limited |
| +44 1335655 | Allocated | Atomstream Limited |
| +44 1335656 | Allocated | Telappliant Limited |
| +44 1335657 | Protected | — |
| +44 1335658 | Allocated | GCI Network Solutions Limited |
| +44 1335659 | Allocated | Phone Co-Op Numbering Limited |
| +44 1335660 | Allocated | Windsor Telecom Limited |
| +44 1335661 | Allocated | Datazero Ltd |
| +44 1335662 | Protected | — |
| +44 1335663 | Allocated | Nexbridge Communications Limited |
| +44 1335664 | Allocated | Sky UK Limited |
| +44 1335665 | Protected | — |
| +44 1335666 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1335667 | Allocated | Invosys Limited |
| +44 1335668 | Allocated | TalkTalk Communications Limited |
| +44 1335669 | Protected | — |
| +44 1335670 | Allocated | Ziron Limited |
| +44 1335671 | Allocated | IOVOX Limited |
| +44 1335672 | Allocated | Hello Telecom (UK) Limited |
| +44 1335673 | Protected | — |
| +44 1335674 | Allocated | Media Hawk Ltd |
| +44 1335675 | Allocated | Kalnet4U Ltd |
| +44 1335676 | Allocated | Content Guru Limited |
| +44 1335677 | Protected | — |
| +44 1335678 | Allocated | HAVENSTOKE COMMUNICATIONS LTD |
| +44 1335679 | Allocated | XoverX Ltd |
| +44 1335680 | Allocated | Redwood Technologies Ltd |
| +44 1335681 | Allocated | I.T Communications Limited |
| +44 1335682 | Allocated | Colt Technology Services |
| +44 1335683 | Allocated | M247 Ltd |
| +44 1335684 | Allocated | YayYay Limited |
| +44 1335685 | Protected | — |
| +44 1335686 | Allocated | Fuse 2 Communications Ltd |
| +44 1335687 | Protected | — |
| +44 1335688 | Allocated | Nuso Cloud UK Limited |
| +44 1335689 | Allocated | Belgacom International Carrier Services SA |
| +44 1335690 | Allocated | Number Services Ltd. |
| +44 1335691 | Allocated | IP Voice Networks Ltd |
| +44 1335692 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1335693 | Allocated | EVE CONNECT LTD |
| +44 1335694 | Allocated | Dial 9 Communications Limited |
| +44 1335695 | Allocated | Fuse 2 Communications Ltd |
| +44 1335696 | Allocated | Adepteo Limited |
| +44 1335697 | Protected | — |
| +44 1335698 | Allocated | Zapappi Ltd |
| +44 1335699 | Allocated | Alnitak GmbH |
| +44 1335700 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1335701 | Allocated | Sky UK Limited |
| +44 1335702 | Allocated | BT |
| +44 1335703 | Allocated | DIDWW Ireland Limited |
| +44 1335704 | Allocated | Virgin Media Limited |
| +44 1335705 | Free | — |
| +44 1335706 | Allocated | Bink Networks Ltd |
| +44 1335707 | Allocated | KCOM Group Ltd |
| +44 1335708 | Free | — |
| +44 1335709 | Allocated | ICUK Computing Services Limited |
| +44 1335710 | Free | — |
| +44 1335711 | Free | — |
| +44 1335712 | Free | — |
| +44 1335713 | Free | — |
| +44 1335714 | Free | — |
| +44 1335715 | Protected | — |
| +44 1335716 | Protected | — |
| +44 1335717 | Protected | — |
| +44 1335718 | Protected | — |
| +44 1335719 | Protected | — |
| +44 1335720 | Protected | — |
| +44 1335721 | Protected | — |
Related lookups
- 01538 Ipstones16 km away
- 01629 Matlock18 km away
- 01332 Derby22 km away
- 01773 Ripley22 km away
- BT11 allocated blocks on 01335
- Inet Telecoms Ltd (Voipfone)3 allocated blocks on 01335
- TalkTalk Communications Limited3 allocated blocks on 01335
- All UK towns A–ZDialling codes by town
- More Derbyshire 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 01335
Where is area code 01335?
01335 is Ofcom's Ashbourne numbering area, in Derbyshire, East Midlands England. Its exchange town is in Derbyshire. From abroad, drop the 0 and dial +44 1335.
Do I need to dial 01335 for a local call?
Traditionally not from another 01335 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01335 first always works, and mobiles always need it.
How are 01335 numbers written?
Numbers on 01335 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01335 234 567. From abroad the leading zero is dropped: +44 1335 then the local number.
What was the 01335 area code before?
01335 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 0335. Old signage or stationery showing 0335 refers to the same Ashbourne numbers.
Which phone companies hold 01335 numbers?
Ofcom lists 85 providers with allocated blocks on 01335. The largest are BT with 11 of the 105 allocated blocks, Inet Telecoms Ltd (Voipfone) with 3 of the 105 allocated blocks and TalkTalk Communications Limited with 3 of the 105 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 01335?
By distance between exchange towns, the nearest other codes are 01538 Ipstones (16 km), 01629 Matlock (18 km), 01332 Derby (22 km) and 01773 Ripley (22 km).
How do I report a scam call from a 01335 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.