UK area code
01420 area code — Alton
01420 is Ofcom’s Alton numbering area, in Hampshire, South East England. 94 phone companies hold its 140 allocated number blocks. Its numbers are written like 01420 234 567. The nearest other codes are 01730 Petersfield (15 km) and 01428 Haslemere (19 km).
01420 at a glance
- Ofcom area name
- Alton
- County
- Hampshire
- Council area
- Hampshire
- Region
- South East England
- Number format
- 01420 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0420)
- Allocated blocks
- 140 of 397 (35%) across 94 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.
What people check and report about 01420 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.
Caller verdicts on 01420 numbers: 1
1 nuisance. Too few to show shares yet.
Most-reported and most-checked 01420 numbers
| Number | Verdicts | Reports | People checking |
|---|---|---|---|
| 01420 484115 | 1 nuisance | — | 3 |
If a 01420 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.
01420 history and number format
Number format: Numbers on 01420 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01420 234 567.
Before 1995: 01420 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 0420.
Local dialling: Traditionally not from another 01420 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01420 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01420 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 01420 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01420 numbers
Every Ofcom range holder with blocks on 01420, 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 | 4 November 2021 |
| Vodafone Ltd (C&W) | 9 | 9 | 10 September 2013 | 10 November 2021 |
| Sky UK Limited | 5 | 5 | 2 July 2013 | 17 February 2022 |
| TalkTalk Communications Limited | 4 | 4 | 19 January 2012 | 12 February 2013 |
| GCI Network Solutions Limited | 3 | 3 | 25 April 2017 | 20 December 2023 |
| AQL Wholesale Ltd | 2 | 2 | 1 November 2004 | 2 March 2010 |
| Colt Technology Services | 2 | 2 | 30 January 2013 | 19 November 2019 |
| Digital Space Group Limited | 2 | 2 | 30 November 2007 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Verizon UK Limited | 2 | 2 | 24 April 2009 | 5 May 2010 |
| Voxbone SA | 2 | 2 | 18 September 2008 | 16 July 2020 |
| (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 | 29 March 2012 | 29 March 2012 |
| Adepteo Limited | 1 | 1 | 17 January 2017 | 17 January 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 5 March 2009 | 5 March 2009 |
| Atomstream Limited | 1 | 1 | 22 March 2010 | 22 March 2010 |
| Barritel Limited | 1 | 1 | 7 June 2007 | 7 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 |
| Buzz Networks Limited | 1 | 1 | 1 March 2010 | 1 March 2010 |
| CFL Communications Ltd | 1 | 1 | 10 July 2009 | 10 July 2009 |
| Calltracks Limited | 1 | 1 | 31 January 2014 | 31 January 2014 |
| Citrus Telecommunications Ltd | 1 | 1 | 11 April 2006 | 11 April 2006 |
| Content Guru Limited | 1 | 1 | 15 October 2012 | 15 October 2012 |
| DIDWW Ireland Limited | 1 | 1 | 18 January 2019 | 18 January 2019 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
| Datazero Ltd | 1 | 1 | 3 December 2010 | 3 December 2010 |
| Dial 9 Communications Limited | 1 | 1 | 13 January 2020 | 13 January 2020 |
Showing the 30 largest of 94 holders.
All number blocks on 01420first 200 of 397, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 142000 | Protected | — |
| +44 142001 | Protected | — |
| +44 142002 | Protected | — |
| +44 142003 | Protected | — |
| +44 142004 | Protected | — |
| +44 142005 | Protected | — |
| +44 142006 | Protected | — |
| +44 142007 | Protected | — |
| +44 142008 | Protected | — |
| +44 142009 | Protected | — |
| +44 142010 | Protected | — |
| +44 142011 | Protected | — |
| +44 142012 | Protected | — |
| +44 142013 | Protected | — |
| +44 142014 | Protected | — |
| +44 142015 | Protected | — |
| +44 142016 | Protected | — |
| +44 142017 | Protected | — |
| +44 142018 | Protected | — |
| +44 142019 | Protected | — |
| +44 1420200 | Allocated | DRD Communications Limited |
| +44 1420201 | Protected | — |
| +44 1420202 | Protected | — |
| +44 1420203 | Protected | — |
| +44 1420204 | Protected | — |
| +44 1420205 | Protected | — |
| +44 1420206 | Protected | — |
| +44 1420207 | Protected | — |
| +44 1420208 | Protected | — |
| +44 1420209 | Protected | — |
| +44 142021 | Allocated | GCI Network Solutions Limited |
| +44 142022 | Allocated | BT |
| +44 142023 | Allocated | BT |
| +44 142024 | Protected | — |
| +44 1420250 | Allocated | Linear Telecoms Limited |
| +44 1420251 | Allocated | Hello Telecom (UK) Limited |
| +44 1420252 | Allocated | Internexus Networks Limited |
| +44 1420253 | Allocated | 8x8 Communications UK Limited |
| +44 1420254 | Allocated | Bicom Systems EURL |
| +44 1420255 | Protected | — |
| +44 1420256 | Allocated | ICC Networks Ltd |
| +44 1420257 | Allocated | Sky UK Limited |
| +44 1420258 | Allocated | IOVOX Limited |
| +44 1420259 | Allocated | Ziron Limited |
| +44 142026 | Allocated | Flextel Limited |
| +44 1420270 | Protected | — |
| +44 1420271 | Protected | — |
| +44 1420272 | Protected | — |
| +44 1420273 | Protected | — |
| +44 1420274 | Protected | — |
| +44 1420275 | Protected | — |
| +44 1420276 | Protected | — |
| +44 1420277 | Allocated | Spitfire Network Services Limited |
| +44 1420278 | Protected | — |
| +44 1420279 | Protected | — |
| +44 142028 | Allocated | TelNG Limited |
| +44 142029 | Allocated | Syntec Limited |
| +44 142030 | Allocated | Net-Work Internet Ltd |
| +44 142031 | Allocated | (AQ) LIMITED |
| +44 142032 | Allocated | VoIP-Un Limited |
| +44 142033 | Allocated | Digital Space Group Limited |
| +44 142034 | Allocated | Voiceflex Limited |
| +44 1420350 | Allocated | Nodemax Limited |
| +44 1420351 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 1420352 | Allocated | TalkTalk Communications Limited |
| +44 1420353 | Protected | — |
| +44 1420354 | Allocated | Solutios Limited |
| +44 1420355 | Allocated | Mars Communications Limited |
| +44 1420356 | Allocated | Telecom2 Limited |
| +44 1420357 | Allocated | Digital Space Group Limited |
| +44 1420358 | Allocated | Voxbone SA |
| +44 1420359 | Quarantined | — |
| +44 1420360 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1420361 | Allocated | Telecoms World Limited |
| +44 1420362 | Allocated | Sky UK Limited |
| +44 1420363 | Protected | — |
| +44 1420364 | Allocated | Invade International Ltd |
| +44 1420365 | Allocated | Verizon UK Limited |
| +44 1420366 | Quarantined | — |
| +44 1420367 | Allocated | CFL Communications Ltd |
| +44 1420368 | Allocated | Nexus Telecommunications Limited |
| +44 1420369 | Protected | — |
| +44 1420370 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1420371 | Protected | — |
| +44 1420372 | Protected | — |
| +44 1420373 | Allocated | Nuso Cloud UK Limited |
| +44 1420374 | Protected | — |
| +44 1420375 | Allocated | AQL Wholesale Ltd |
| +44 1420376 | Allocated | Atomstream Limited |
| +44 1420377 | Allocated | Buzz Networks Limited |
| +44 1420378 | Allocated | Digitech Solutions Global Limited |
| +44 1420379 | Allocated | Verizon UK Limited |
| +44 1420380 | Allocated | Suretec Systems Ltd |
| +44 1420381 | Allocated | Calltracks Limited |
| +44 1420382 | Allocated | Windsor Telecom Limited |
| +44 1420383 | Allocated | Telappliant Limited |
| +44 1420384 | Allocated | GCI Network Solutions Limited |
| +44 1420385 | Allocated | Telephone Box Limited |
| +44 1420386 | Protected | — |
| +44 1420387 | Allocated | Phone Co-Op Numbering Limited |
| +44 1420388 | Allocated | VoiceHost Limited |
| +44 1420389 | Allocated | Datazero Ltd |
| +44 1420390 | Protected | — |
| +44 1420391 | Allocated | Vodafone Ltd (C&W) |
| +44 1420392 | Allocated | Nexbridge Communications Limited |
| +44 1420393 | Protected | — |
| +44 1420394 | Allocated | Orbtalk Limited |
| +44 1420395 | Allocated | Minotaur Telecom Limited |
| +44 1420396 | Allocated | Invosys Limited |
| +44 1420397 | Protected | — |
| +44 1420398 | Allocated | Invoco Ltd |
| +44 1420399 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 142040 | Allocated | Vodafone Ltd (C&W) |
| +44 1420410 | Protected | — |
| +44 1420411 | Protected | — |
| +44 1420412 | Protected | — |
| +44 1420413 | Protected | — |
| +44 1420414 | Allocated | Six Degrees Technology Group Limited |
| +44 1420415 | Protected | — |
| +44 1420416 | Protected | — |
| +44 1420417 | Protected | — |
| +44 1420418 | Protected | — |
| +44 1420419 | Protected | — |
| +44 142042 | Protected | — |
| +44 1420430 | Allocated | Vodafone Ltd (C&W) |
| +44 1420431 | Allocated | Vodafone Ltd (C&W) |
| +44 1420432 | Allocated | Vodafone Ltd (C&W) |
| +44 1420433 | Allocated | Vodafone Ltd (C&W) |
| +44 1420434 | Allocated | Vodafone Ltd (C&W) |
| +44 1420435 | Protected | — |
| +44 1420436 | Protected | — |
| +44 1420437 | Protected | — |
| +44 1420438 | Allocated | Vodafone Ltd (C&W) |
| +44 1420439 | Allocated | Vodafone Ltd (C&W) |
| +44 142044 | Allocated | Magrathea Telecommunications Limited |
| +44 142045 | Allocated | Localphone Limited |
| +44 1420460 | Allocated | IP Voice Networks Ltd |
| +44 1420461 | Protected | — |
| +44 1420462 | Allocated | Zapappi Ltd |
| +44 1420463 | Allocated | Colt Technology Services |
| +44 1420464 | Allocated | Fuse 2 Communications Ltd |
| +44 1420465 | Allocated | ICUK Computing Services Limited |
| +44 1420466 | Allocated | Number Services Ltd. |
| +44 1420467 | Allocated | DIDWW Ireland Limited |
| +44 1420468 | Allocated | EVE CONNECT LTD |
| +44 1420469 | Allocated | Belgacom International Carrier Services SA |
| +44 142047 | Allocated | BT |
| +44 142048 | Allocated | BT |
| +44 1420490 | Protected | — |
| +44 1420491 | Protected | — |
| +44 1420492 | Protected | — |
| +44 1420493 | Protected | — |
| +44 1420494 | Protected | — |
| +44 1420495 | Protected | — |
| +44 1420496 | Protected | — |
| +44 1420497 | Protected | — |
| +44 1420498 | Protected | — |
| +44 1420499 | Protected | — |
| +44 142050 | Allocated | AQL Wholesale Ltd |
| +44 142051 | Allocated | BT |
| +44 142052 | Allocated | BT |
| +44 142053 | Allocated | BT |
| +44 142054 | Allocated | BT |
| +44 142055 | Allocated | Gamma Telecom Holdings Limited |
| +44 142056 | Allocated | BT |
| +44 1420570 | Allocated | I.T Communications Limited |
| +44 1420571 | Allocated | BT |
| +44 1420572 | Allocated | M247 Ltd |
| +44 1420573 | Allocated | Voxbone SA |
| +44 1420574 | Allocated | Adepteo Limited |
| +44 1420575 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1420576 | Allocated | Sky UK Limited |
| +44 1420577 | Protected | — |
| +44 1420578 | Allocated | Virgin Media Limited |
| +44 1420579 | Allocated | YayYay Limited |
| +44 142058 | Allocated | BT |
| +44 142059 | Allocated | BT |
| +44 142060 | Allocated | BT |
| +44 1420610 | Allocated | Simwood eSMS Limited |
| +44 1420611 | Protected | — |
| +44 1420612 | Allocated | Colt Technology Services |
| +44 1420613 | Allocated | Kalnet4U Ltd |
| +44 1420614 | Allocated | Redwood Technologies Ltd |
| +44 1420615 | Allocated | Fuse 2 Communications Ltd |
| +44 1420616 | Allocated | Content Guru Limited |
| +44 1420617 | Allocated | Sky UK Limited |
| +44 1420618 | Allocated | Resilient Limited |
| +44 1420619 | Allocated | XoverX Ltd |
| +44 1420620 | Allocated | Dial 9 Communications Limited |
| +44 1420621 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1420622 | Allocated | SiPalto Ltd |
| +44 1420623 | Allocated | Orange Business Holdings UK Limited |
| +44 1420624 | Allocated | Lanonyx Telecom Limited |
| +44 1420625 | Allocated | Mi Telecom Limited |
| +44 1420626 | Allocated | GCI Network Solutions Limited |
| +44 1420627 | Allocated | Sky UK Limited |
| +44 1420628 | Allocated | Media Hawk Ltd |
| +44 1420629 | Allocated | BT |
| +44 1420630 | Free | — |
| +44 1420631 | Free | — |
Related lookups
- 01730 Petersfield15 km away
- 01428 Haslemere19 km away
- 01252 Aldershot20 km away
- 01256 Basingstoke22 km away
- BT24 allocated blocks on 01420
- Vodafone Ltd (C&W)9 allocated blocks on 01420
- Sky UK Limited5 allocated blocks on 01420
- All UK towns A–ZDialling codes by town
- More Hampshire 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 01420
Where is area code 01420?
01420 is Ofcom's Alton numbering area, in Hampshire, South East England. Its exchange town is in Hampshire. From abroad, drop the 0 and dial +44 1420.
Do I need to dial 01420 for a local call?
Traditionally not from another 01420 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01420 first always works, and mobiles always need it.
How are 01420 numbers written?
Numbers on 01420 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01420 234 567. From abroad the leading zero is dropped: +44 1420 then the local number.
What was the 01420 area code before?
01420 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 0420. Old signage or stationery showing 0420 refers to the same Alton numbers.
Which phone companies hold 01420 numbers?
Ofcom lists 94 providers with allocated blocks on 01420. The largest are BT with 24 of the 140 allocated blocks, Vodafone with 9 of the 140 allocated blocks and Sky UK Limited with 5 of the 140 allocated blocks. Numbers can be ported, so a number's current provider may differ from the block's holder.
Are 01420 numbers reported as scams?
1 caller verdict have been left on 01420 numbers: 0 scam, 1 nuisance and 0 safe.
Which area codes are next to 01420?
By distance between exchange towns, the nearest other codes are 01730 Petersfield (15 km), 01428 Haslemere (19 km), 01252 Aldershot (20 km) and 01256 Basingstoke (22 km).
How do I report a scam call from a 01420 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.