UK area code
01525 area code — Leighton Buzzard
01525 is Ofcom’s Leighton Buzzard numbering area, in Bedfordshire, East of England England. 91 phone companies hold its 146 allocated number blocks. Its numbers are written like 01525 234 567. The nearest other codes are 01582 Luton (9 km) and 01296 Aylesbury (16 km).
01525 at a glance
- Ofcom area name
- Leighton Buzzard
- County
- Bedfordshire
- Council area
- Central Bedfordshire
- Region
- East of England England
- Number format
- 01525 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0525)
- Allocated blocks
- 146 of 415 (35%) across 91 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 01525 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.
01525 history and number format
Number format: Numbers on 01525 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01525 234 567.
Before 1995: 01525 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 0525.
Local dialling: Traditionally not from another 01525 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01525 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01525 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 01525 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01525 numbers
Every Ofcom range holder with blocks on 01525, 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 | 22 | 22 | 15 July 1994 | 20 March 2024 |
| GCI Network Solutions Limited | 12 | 12 | 2 May 2017 | 26 February 2024 |
| Vodafone Ltd (C&W) | 9 | 9 | 5 September 2013 | 10 November 2021 |
| Gamma Telecom Holdings Limited | 5 | 5 | 22 February 2005 | 22 September 2021 |
| TalkTalk Communications Limited | 4 | 4 | 19 January 2012 | 12 February 2013 |
| Colt Technology Services | 3 | 3 | 27 April 2015 | 4 August 2021 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 3 November 2023 |
| Digital Space Group Limited | 2 | 2 | 18 June 2008 | 15 March 2016 |
| Digitech Solutions Global Limited | 2 | 2 | 27 April 2010 | 25 June 2012 |
| Fuse 2 Communications Ltd | 2 | 2 | 4 July 2017 | 22 January 2024 |
| Six Degrees Technology Group Limited | 2 | 2 | 3 April 2020 | 3 April 2020 |
| Virgin Media Limited | 2 | 2 | 15 July 1994 | 22 August 1995 |
| (AQ) LIMITED | 1 | 1 | 19 October 2011 | 19 October 2011 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 17 January 2020 | 17 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 30 March 2012 | 30 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 4 January 2008 | 4 January 2008 |
| Adepteo Limited | 1 | 1 | 21 December 2016 | 21 December 2016 |
| Alnitak GmbH | 1 | 1 | 31 August 2016 | 31 August 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 13 March 2009 | 13 March 2009 |
| Atomstream Limited | 1 | 1 | 23 March 2010 | 23 March 2010 |
| Barritel Limited | 1 | 1 | 8 October 2008 | 8 October 2008 |
| Belgacom International Carrier Services SA | 1 | 1 | 21 October 2020 | 21 October 2020 |
| Bicom Systems EURL | 1 | 1 | 5 March 2012 | 5 March 2012 |
| Bink Networks Ltd | 1 | 1 | 3 April 2023 | 3 April 2023 |
| Buzz Networks Limited | 1 | 1 | 1 March 2010 | 1 March 2010 |
| CFL Communications Ltd | 1 | 1 | 13 July 2009 | 13 July 2009 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| Core Telecom Limited | 1 | 1 | 6 August 2010 | 6 August 2010 |
| DIDWW Ireland Limited | 1 | 1 | 27 January 2020 | 27 January 2020 |
| Datazero Ltd | 1 | 1 | 4 November 2010 | 4 November 2010 |
Showing the 30 largest of 91 holders.
All number blocks on 01525first 200 of 415, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 152500 | Protected | — |
| +44 152501 | Protected | — |
| +44 152502 | Protected | — |
| +44 152503 | Protected | — |
| +44 152504 | Protected | — |
| +44 152505 | Protected | — |
| +44 152506 | Protected | — |
| +44 152507 | Protected | — |
| +44 152508 | Protected | — |
| +44 152509 | Protected | — |
| +44 152510 | Protected | — |
| +44 152511 | Protected | — |
| +44 152512 | Protected | — |
| +44 152513 | Protected | — |
| +44 152514 | Protected | — |
| +44 152515 | Protected | — |
| +44 152516 | Protected | — |
| +44 152517 | Protected | — |
| +44 152518 | Protected | — |
| +44 152519 | Protected | — |
| +44 1525200 | Allocated | Linear Telecoms Limited |
| +44 1525201 | Allocated | 8x8 Communications UK Limited |
| +44 1525202 | Allocated | ICC Networks Ltd |
| +44 1525203 | Allocated | Ziron Limited |
| +44 1525204 | Allocated | IOVOX Limited |
| +44 1525205 | Protected | — |
| +44 1525206 | Allocated | Content Guru Limited |
| +44 1525207 | Allocated | Media Hawk Ltd |
| +44 1525208 | Protected | — |
| +44 1525209 | Allocated | XoverX Ltd |
| +44 152521 | Allocated | BT |
| +44 152522 | Allocated | BT |
| +44 152523 | Allocated | BT |
| +44 152524 | Allocated | BT |
| +44 152525 | Allocated | BT |
| +44 152526 | Allocated | BT |
| +44 152527 | Allocated | BT |
| +44 152528 | Allocated | BT |
| +44 152529 | Allocated | BT |
| +44 152530 | Allocated | Gamma Telecom Holdings Limited |
| +44 1525310 | Allocated | BT |
| +44 1525311 | Allocated | Bink Networks Ltd |
| +44 1525312 | Allocated | Truespeed Communications Ltd |
| +44 1525313 | Free | — |
| +44 1525314 | Free | — |
| +44 1525315 | Allocated | ICUK Computing Services Limited |
| +44 1525316 | Free | — |
| +44 1525317 | Free | — |
| +44 1525318 | Free | — |
| +44 1525319 | Free | — |
| +44 152532 | Protected | — |
| +44 1525330 | Allocated | DRD Communications Limited |
| +44 1525331 | Allocated | DRD Communications Limited |
| +44 1525332 | Protected | — |
| +44 1525333 | Protected | — |
| +44 1525334 | Protected | — |
| +44 1525335 | Protected | — |
| +44 1525336 | Protected | — |
| +44 1525337 | Protected | — |
| +44 1525338 | Protected | — |
| +44 1525339 | Protected | — |
| +44 152534 | Allocated | GCI Network Solutions Limited |
| +44 1525350 | Allocated | GCI Network Solutions Limited |
| +44 1525351 | Allocated | GCI Network Solutions Limited |
| +44 1525352 | Allocated | GCI Network Solutions Limited |
| +44 1525353 | Allocated | GCI Network Solutions Limited |
| +44 1525354 | Allocated | GCI Network Solutions Limited |
| +44 1525355 | Allocated | GCI Network Solutions Limited |
| +44 1525356 | Allocated | GCI Network Solutions Limited |
| +44 1525357 | Allocated | GCI Network Solutions Limited |
| +44 1525358 | Allocated | GCI Network Solutions Limited |
| +44 1525359 | Allocated | GCI Network Solutions Limited |
| +44 152536 | Allocated | Flextel Limited |
| +44 152537 | Allocated | BT |
| +44 152538 | Allocated | BT |
| +44 1525390 | Allocated | Digitech Solutions Global Limited |
| +44 1525391 | Protected | — |
| +44 1525392 | Protected | — |
| +44 1525393 | Protected | — |
| +44 1525394 | Protected | — |
| +44 1525395 | Protected | — |
| +44 1525396 | Protected | — |
| +44 1525397 | Protected | — |
| +44 1525398 | Protected | — |
| +44 1525399 | Protected | — |
| +44 152540 | Allocated | BT |
| +44 1525410 | Protected | — |
| +44 1525411 | Protected | — |
| +44 1525412 | Protected | — |
| +44 1525413 | Protected | — |
| +44 1525414 | Protected | — |
| +44 1525415 | Protected | — |
| +44 1525416 | Protected | — |
| +44 1525417 | Protected | — |
| +44 1525418 | Protected | — |
| +44 1525419 | Protected | — |
| +44 1525420 | Protected | — |
| +44 1525421 | Protected | — |
| +44 1525422 | Protected | — |
| +44 1525423 | Protected | — |
| +44 1525424 | Protected | — |
| +44 1525425 | Protected | — |
| +44 1525426 | Protected | — |
| +44 1525427 | Protected | — |
| +44 1525428 | Protected | — |
| +44 1525429 | Protected | — |
| +44 152543 | Allocated | TelNG Limited |
| +44 152544 | Allocated | Verizon UK Limited |
| +44 152545 | Allocated | TTNC Limited |
| +44 152546 | Allocated | Localphone Limited |
| +44 152547 | Allocated | Redcentric Solutions Limited |
| +44 1525480 | Protected | — |
| +44 1525481 | Protected | — |
| +44 1525482 | Protected | — |
| +44 1525483 | Protected | — |
| +44 1525484 | Protected | — |
| +44 1525485 | Protected | — |
| +44 1525486 | Protected | — |
| +44 1525487 | Allocated | Spitfire Network Services Limited |
| +44 1525488 | Protected | — |
| +44 1525489 | Protected | — |
| +44 152549 | Allocated | Voiceflex Limited |
| +44 152550 | Allocated | (AQ) LIMITED |
| +44 152551 | Allocated | Net-Work Internet Ltd |
| +44 152552 | Protected | — |
| +44 152553 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 152554 | Allocated | VoIP-Un Limited |
| +44 152555 | Allocated | AQL Wholesale Ltd |
| +44 1525560 | Protected | — |
| +44 1525561 | Protected | — |
| +44 1525562 | Protected | — |
| +44 1525563 | Protected | — |
| +44 1525564 | Protected | — |
| +44 1525565 | Protected | — |
| +44 1525566 | Protected | — |
| +44 1525567 | Allocated | Digital Space Group Limited |
| +44 1525568 | Protected | — |
| +44 1525569 | Protected | — |
| +44 1525570 | Allocated | Nodemax Limited |
| +44 1525571 | Allocated | TalkTalk Communications Limited |
| +44 1525572 | Allocated | Barritel Limited |
| +44 1525573 | Protected | — |
| +44 1525574 | Allocated | Voxbone SA |
| +44 1525575 | Allocated | Pulsant (Scotland) Limited |
| +44 1525576 | Protected | — |
| +44 1525577 | Allocated | Telecom2 Limited |
| +44 1525578 | Allocated | Digital Space Group Limited |
| +44 1525579 | Allocated | Solutios Limited |
| +44 1525580 | Allocated | Mars Communications Limited |
| +44 1525581 | Quarantined | — |
| +44 1525582 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1525583 | Allocated | Core Telecom Limited |
| +44 1525584 | Allocated | Telecoms World Limited |
| +44 1525585 | Allocated | Invade International Ltd |
| +44 1525586 | Quarantined | — |
| +44 1525587 | Allocated | CFL Communications Ltd |
| +44 1525588 | Protected | — |
| +44 1525589 | Allocated | Nexus Telecommunications Limited |
| +44 1525590 | Allocated | Nuso Cloud UK Limited |
| +44 1525591 | Allocated | Buzz Networks Limited |
| +44 1525592 | Protected | — |
| +44 1525593 | Allocated | Atomstream Limited |
| +44 1525594 | Allocated | Digitech Solutions Global Limited |
| +44 1525595 | Allocated | Suretec Systems Ltd |
| +44 1525596 | Allocated | Windsor Telecom Limited |
| +44 1525597 | Allocated | Telephone Box Limited |
| +44 1525598 | Protected | — |
| +44 1525599 | Allocated | VoiceHost Limited |
| +44 1525600 | Allocated | Simwood eSMS Limited |
| +44 1525601 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1525602 | Allocated | Phone Co-Op Numbering Limited |
| +44 1525603 | Protected | — |
| +44 1525604 | Allocated | Invosys Limited |
| +44 1525605 | Allocated | Datazero Ltd |
| +44 1525606 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1525607 | Allocated | Minotaur Telecom Limited |
| +44 1525608 | Allocated | Nexbridge Communications Limited |
| +44 1525609 | Protected | — |
| +44 1525610 | Allocated | Orbtalk Limited |
| +44 1525611 | Allocated | Invoco Ltd |
| +44 1525612 | Allocated | Hello Telecom (UK) Limited |
| +44 1525613 | Allocated | Internexus Networks Limited |
| +44 1525614 | Allocated | Bicom Systems EURL |
| +44 1525615 | Protected | — |
| +44 1525616 | Protected | — |
| +44 1525617 | Protected | — |
| +44 1525618 | Protected | — |
| +44 1525619 | Protected | — |
| +44 1525620 | Allocated | Kalnet4U Ltd |
| +44 1525621 | Allocated | BT |
| +44 1525622 | Allocated | Fuse 2 Communications Ltd |
| +44 1525623 | Allocated | YayYay Limited |
| +44 1525624 | Allocated | Colt Technology Services |
| +44 1525625 | Allocated | Redwood Technologies Ltd |
| +44 1525626 | Allocated | GCI Network Solutions Limited |
| +44 1525627 | Protected | — |
| +44 1525628 | Allocated | M247 Ltd |
| +44 1525629 | Protected | — |
| +44 152563 | Allocated | Virgin Media Limited |
| +44 1525640 | Allocated | Number Services Ltd. |
Related lookups
- 01582 Luton9 km away
- 01296 Aylesbury16 km away
- 01908 Milton Keynes16 km away
- 01442 Hemel Hempstead21 km away
- BT22 allocated blocks on 01525
- GCI Network Solutions Limited12 allocated blocks on 01525
- Vodafone Ltd (C&W)9 allocated blocks on 01525
- All UK towns A–ZDialling codes by town
- More Bedfordshire 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 01525
Where is area code 01525?
01525 is Ofcom's Leighton Buzzard numbering area, in Bedfordshire, East of England England. Its exchange town is in Central Bedfordshire. From abroad, drop the 0 and dial +44 1525.
Do I need to dial 01525 for a local call?
Traditionally not from another 01525 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01525 first always works, and mobiles always need it.
How are 01525 numbers written?
Numbers on 01525 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01525 234 567. From abroad the leading zero is dropped: +44 1525 then the local number.
What was the 01525 area code before?
01525 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 0525. Old signage or stationery showing 0525 refers to the same Leighton Buzzard numbers.
Which phone companies hold 01525 numbers?
Ofcom lists 91 providers with allocated blocks on 01525. The largest are BT with 22 of the 146 allocated blocks, GCI Network Solutions Limited with 12 of the 146 allocated blocks and Vodafone with 9 of the 146 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 01525?
By distance between exchange towns, the nearest other codes are 01582 Luton (9 km), 01296 Aylesbury (16 km), 01908 Milton Keynes (16 km) and 01442 Hemel Hempstead (21 km).
How do I report a scam call from a 01525 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.