UK area code
01900 area code — Workington
01900 is Ofcom’s Workington numbering area, in Cumbria, North West England. 91 phone companies hold its 129 allocated number blocks. Its numbers are written like 01900 234 567. The nearest other codes are 01946 Whitehaven (11 km) and 01557 Kirkcudbright (39 km).
01900 at a glance
- Ofcom area name
- Workington
- County
- Cumbria
- Council area
- Cumberland
- Region
- North West England
- Number format
- 01900 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0900)
- Allocated blocks
- 129 of 424 (30%) 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 01900 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.
01900 history and number format
Number format: Numbers on 01900 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01900 234 567.
Before 1995: 01900 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 0900.
Local dialling: Traditionally not from another 01900 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01900 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01900 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 01900 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01900 numbers
Every Ofcom range holder with blocks on 01900, 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 | 19 | 19 | 15 July 1994 | 26 August 2021 |
| Vodafone Ltd (C&W) | 9 | 9 | 9 September 2013 | 16 November 2021 |
| Sky UK Limited | 6 | 6 | 27 June 2013 | 4 November 2019 |
| TalkTalk Communications Limited | 5 | 5 | 18 January 2012 | 12 February 2019 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 2 May 2017 | 22 December 2023 |
| Gamma Telecom Holdings Limited | 2 | 2 | 16 February 2005 | 22 September 2021 |
| (AQ) LIMITED | 1 | 1 | 26 September 2012 | 26 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 30 September 2019 | 30 September 2019 |
| 8x8 Communications UK Limited | 1 | 1 | 19 April 2012 | 19 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 29 November 2016 | 29 November 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 9 April 2009 | 9 April 2009 |
| Atomstream Limited | 1 | 1 | 12 April 2010 | 12 April 2010 |
| Barritel Limited | 1 | 1 | 21 June 2007 | 21 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 10 July 2020 | 10 July 2020 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 11 April 2023 | 11 April 2023 |
| CFL Communications Ltd | 1 | 1 | 20 July 2009 | 20 July 2009 |
| Calltracks Limited | 1 | 1 | 20 September 2013 | 20 September 2013 |
| Colt Technology Services | 1 | 1 | 28 October 2015 | 28 October 2015 |
| Content Guru Limited | 1 | 1 | 11 October 2012 | 11 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| Core Telecom Limited | 1 | 1 | 6 August 2010 | 6 August 2010 |
| DIDWW Ireland Limited | 1 | 1 | 22 January 2019 | 22 January 2019 |
| Datazero Ltd | 1 | 1 | 12 November 2010 | 12 November 2010 |
| Dial 9 Communications Limited | 1 | 1 | 8 January 2020 | 8 January 2020 |
| Digital Mail Limited | 1 | 1 | 21 October 2011 | 21 October 2011 |
| Digital Space Group Limited | 1 | 1 | 15 March 2016 | 15 March 2016 |
| EVE CONNECT LTD | 1 | 1 | 22 June 2022 | 22 June 2022 |
Showing the 30 largest of 91 holders.
All number blocks on 01900first 200 of 424, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 190000 | Protected | — |
| +44 190001 | Protected | — |
| +44 190002 | Protected | — |
| +44 190003 | Protected | — |
| +44 190004 | Protected | — |
| +44 190005 | Protected | — |
| +44 190006 | Protected | — |
| +44 190007 | Protected | — |
| +44 190008 | Protected | — |
| +44 190009 | Protected | — |
| +44 190010 | Protected | — |
| +44 190011 | Protected | — |
| +44 190012 | Protected | — |
| +44 190013 | Protected | — |
| +44 190014 | Protected | — |
| +44 190015 | Protected | — |
| +44 190016 | Protected | — |
| +44 190017 | Protected | — |
| +44 190018 | Protected | — |
| +44 190019 | Protected | — |
| +44 1900200 | Allocated | Digital Mail Limited |
| +44 1900201 | Protected | — |
| +44 1900202 | Protected | — |
| +44 1900203 | Protected | — |
| +44 1900204 | Protected | — |
| +44 1900205 | Protected | — |
| +44 1900206 | Protected | — |
| +44 1900207 | Protected | — |
| +44 1900208 | Protected | — |
| +44 1900209 | Protected | — |
| +44 190021 | Allocated | TelNG Limited |
| +44 190022 | Allocated | Localphone Limited |
| +44 190023 | Allocated | Voiceflex Limited |
| +44 190024 | Allocated | Barritel Limited |
| +44 190025 | Allocated | (AQ) LIMITED |
| +44 1900260 | Protected | — |
| +44 1900261 | Protected | — |
| +44 1900262 | Protected | — |
| +44 1900263 | Protected | — |
| +44 1900264 | Protected | — |
| +44 1900265 | Protected | — |
| +44 1900266 | Protected | — |
| +44 1900267 | Allocated | TalkTalk Communications Limited |
| +44 1900268 | Allocated | TalkTalk Communications Limited |
| +44 1900269 | Allocated | TalkTalk Communications Limited |
| +44 190027 | Allocated | VoIP-Un Limited |
| +44 190028 | Allocated | Entanet International Ltd |
| +44 190029 | Allocated | AQL Wholesale Ltd |
| +44 190030 | Allocated | Net-Work Internet Ltd |
| +44 190031 | Allocated | Redcentric Solutions Limited |
| +44 190032 | Allocated | BT |
| +44 1900330 | Allocated | Nodemax Limited |
| +44 1900331 | Quarantined | — |
| +44 1900332 | Allocated | Served Up Limited |
| +44 1900333 | Allocated | Telecom2 Limited |
| +44 1900334 | Protected | — |
| +44 1900335 | Allocated | Solutios Limited |
| +44 1900336 | Allocated | Sky UK Limited |
| +44 1900337 | Protected | — |
| +44 1900338 | Allocated | Voxbone SA |
| +44 1900339 | Allocated | Mars Communications Limited |
| +44 1900340 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1900341 | Protected | — |
| +44 1900342 | Allocated | CFL Communications Ltd |
| +44 1900343 | Quarantined | — |
| +44 1900344 | Allocated | Telecoms World Limited |
| +44 1900345 | Allocated | Nexus Telecommunications Limited |
| +44 1900346 | Allocated | TeleWare Group Limited |
| +44 1900347 | Allocated | Atomstream Limited |
| +44 1900348 | Allocated | Calltracks Limited |
| +44 1900349 | Allocated | Nuso Cloud UK Limited |
| +44 1900350 | Protected | — |
| +44 1900351 | Allocated | Suretec Systems Ltd |
| +44 1900352 | Allocated | Windsor Telecom Limited |
| +44 1900353 | Allocated | Core Telecom Limited |
| +44 1900354 | Allocated | Simwood eSMS Limited |
| +44 1900355 | Allocated | Datazero Ltd |
| +44 1900356 | Allocated | Telephone Box Limited |
| +44 1900357 | Protected | — |
| +44 1900358 | Allocated | GCI Network Solutions Limited |
| +44 1900359 | Allocated | Phone Co-Op Numbering Limited |
| +44 1900360 | Protected | — |
| +44 1900361 | Allocated | Invosys Limited |
| +44 1900362 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1900363 | Allocated | Vodafone Ltd (C&W) |
| +44 1900364 | Protected | — |
| +44 1900365 | Allocated | Orbtalk Limited |
| +44 1900366 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1900367 | Protected | — |
| +44 1900368 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1900369 | Allocated | Nexbridge Communications Limited |
| +44 1900370 | Allocated | Minotaur Telecom Limited |
| +44 1900371 | Allocated | Internexus Networks Limited |
| +44 1900372 | Allocated | Hello Telecom (UK) Limited |
| +44 1900373 | Protected | — |
| +44 1900374 | Allocated | ICC Networks Ltd |
| +44 1900375 | Allocated | Bicom Systems EURL |
| +44 1900376 | Allocated | 8x8 Communications UK Limited |
| +44 1900377 | Allocated | Invoco Ltd |
| +44 1900378 | Allocated | IOVOX Limited |
| +44 1900379 | Allocated | Sky UK Limited |
| +44 1900380 | Allocated | Ziron Limited |
| +44 1900381 | Allocated | Sky UK Limited |
| +44 1900382 | Allocated | Media Hawk Ltd |
| +44 1900383 | Allocated | Content Guru Limited |
| +44 1900384 | Protected | — |
| +44 1900385 | Allocated | Kalnet4U Ltd |
| +44 1900386 | Allocated | Sky UK Limited |
| +44 1900387 | Allocated | XoverX Ltd |
| +44 1900388 | Protected | — |
| +44 1900389 | Protected | — |
| +44 1900390 | Allocated | Redwood Technologies Ltd |
| +44 1900391 | Protected | — |
| +44 1900392 | Allocated | TalkTalk Communications Limited |
| +44 1900393 | Allocated | Sky UK Limited |
| +44 1900394 | Allocated | Resilient Limited |
| +44 1900395 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1900396 | Allocated | Internet of Things Limited |
| +44 1900397 | Allocated | Colt Technology Services |
| +44 1900398 | Protected | — |
| +44 1900399 | Allocated | Fuse 2 Communications Ltd |
| +44 1900400 | Allocated | I.T Communications Limited |
| +44 1900401 | Allocated | Mintaka Limited |
| +44 1900402 | Allocated | Adepteo Limited |
| +44 1900403 | Allocated | BT |
| +44 1900404 | Allocated | Bink Networks Ltd |
| +44 1900405 | Allocated | Number Services Ltd. |
| +44 1900406 | Allocated | IP Voice Networks Ltd |
| +44 1900407 | Protected | — |
| +44 1900408 | Allocated | Fuse 2 Communications Ltd |
| +44 1900409 | Allocated | Zapappi Ltd |
| +44 1900410 | Allocated | EVE CONNECT LTD |
| +44 1900411 | Allocated | DIDWW Ireland Limited |
| +44 1900412 | Allocated | TalkTalk Communications Limited |
| +44 1900413 | Allocated | Sky UK Limited |
| +44 1900414 | Allocated | Dial 9 Communications Limited |
| +44 1900415 | Allocated | ICUK Computing Services Limited |
| +44 1900416 | Allocated | SiPalto Ltd |
| +44 1900417 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1900418 | Allocated | Belgacom International Carrier Services SA |
| +44 1900419 | Allocated | Mi Telecom Limited |
| +44 1900420 | Allocated | Lanonyx Telecom Limited |
| +44 1900421 | Allocated | Orange Business Holdings UK Limited |
| +44 1900422 | Allocated | Gamma Telecom Holdings Limited |
| +44 1900423 | Free | — |
| +44 1900424 | Allocated | KCOM Group Ltd |
| +44 1900425 | Free | — |
| +44 1900426 | Free | — |
| +44 1900427 | Free | — |
| +44 1900428 | Free | — |
| +44 1900429 | Free | — |
| +44 1900430 | Protected | — |
| +44 1900431 | Protected | — |
| +44 1900432 | Protected | — |
| +44 1900433 | Protected | — |
| +44 1900434 | Protected | — |
| +44 1900435 | Protected | — |
| +44 1900436 | Protected | — |
| +44 1900437 | Protected | — |
| +44 1900438 | Protected | — |
| +44 1900439 | Protected | — |
| +44 1900440 | Protected | — |
| +44 1900441 | Protected | — |
| +44 1900442 | Protected | — |
| +44 1900443 | Protected | — |
| +44 1900444 | Protected | — |
| +44 1900445 | Protected | — |
| +44 1900446 | Protected | — |
| +44 1900447 | Protected | — |
| +44 1900448 | Protected | — |
| +44 1900449 | Protected | — |
| +44 1900450 | Protected | — |
| +44 1900451 | Protected | — |
| +44 1900452 | Protected | — |
| +44 1900453 | Protected | — |
| +44 1900454 | Protected | — |
| +44 1900455 | Protected | — |
| +44 1900456 | Protected | — |
| +44 1900457 | Protected | — |
| +44 1900458 | Protected | — |
| +44 1900459 | Protected | — |
| +44 1900460 | Protected | — |
| +44 1900461 | Protected | — |
| +44 1900462 | Protected | — |
| +44 1900463 | Protected | — |
| +44 1900464 | Protected | — |
| +44 1900465 | Protected | — |
| +44 1900466 | Protected | — |
| +44 1900467 | Protected | — |
| +44 1900468 | Protected | — |
| +44 1900469 | Protected | — |
| +44 1900470 | Protected | — |
| +44 1900471 | Protected | — |
| +44 1900472 | Protected | — |
| +44 1900473 | Protected | — |
| +44 1900474 | Protected | — |
| +44 1900475 | Protected | — |
| +44 1900476 | Protected | — |
| +44 1900477 | Protected | — |
| +44 1900478 | Protected | — |
Related lookups
- 01946 Whitehaven11 km away
- 01557 Kirkcudbright39 km away
- 01556 Castle Douglas41 km away
- 01387 Dumfries48 km away
- BT19 allocated blocks on 01900
- Vodafone Ltd (C&W)9 allocated blocks on 01900
- Sky UK Limited6 allocated blocks on 01900
- All UK towns A–ZDialling codes by town
- More Cumbria 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 01900
Where is area code 01900?
01900 is Ofcom's Workington numbering area, in Cumbria, North West England. Its exchange town is in Cumberland. From abroad, drop the 0 and dial +44 1900.
Do I need to dial 01900 for a local call?
Traditionally not from another 01900 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01900 first always works, and mobiles always need it.
How are 01900 numbers written?
Numbers on 01900 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01900 234 567. From abroad the leading zero is dropped: +44 1900 then the local number.
What was the 01900 area code before?
01900 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 0900. Old signage or stationery showing 0900 refers to the same Workington numbers.
Which phone companies hold 01900 numbers?
Ofcom lists 91 providers with allocated blocks on 01900. The largest are BT with 19 of the 129 allocated blocks, Vodafone with 9 of the 129 allocated blocks and Sky UK Limited with 6 of the 129 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 01900?
By distance between exchange towns, the nearest other codes are 01946 Whitehaven (11 km), 01557 Kirkcudbright (39 km), 01556 Castle Douglas (41 km) and 01387 Dumfries (48 km).
How do I report a scam call from a 01900 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.