UK area code
01673 area code — Market Rasen
01673 is Ofcom’s Market Rasen numbering area, in Lincolnshire, East Midlands England. 86 phone companies hold its 108 allocated number blocks. Its numbers are written like 01673 234 567. The nearest other codes are 01652 Brigg (21 km) and 01522 Lincoln (22 km).
01673 at a glance
- Ofcom area name
- Market Rasen
- County
- Lincolnshire
- Council area
- Lincolnshire
- Region
- East Midlands England
- Number format
- 01673 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0673)
- Allocated blocks
- 108 of 424 (25%) across 86 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 01673 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.
01673 history and number format
Number format: Numbers on 01673 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01673 234 567.
Before 1995: 01673 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 0673.
Local dialling: Traditionally not from another 01673 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01673 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01673 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 01673 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01673 numbers
Every Ofcom range holder with blocks on 01673, 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 | 10 | 10 | 15 July 1994 | 5 August 2020 |
| Vodafone Ltd (C&W) | 8 | 8 | 9 September 2013 | 16 November 2021 |
| TalkTalk Communications Limited | 3 | 3 | 20 January 2012 | 12 February 2013 |
| Digital Space Group Limited | 2 | 2 | 16 May 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 2 | 2 | 26 April 2017 | 22 December 2023 |
| Sky UK Limited | 2 | 2 | 1 July 2013 | 22 December 2020 |
| (AQ) LIMITED | 1 | 1 | 12 September 2012 | 12 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 17 January 2020 | 17 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 5 April 2012 | 5 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 21 December 2007 | 21 December 2007 |
| Adepteo Limited | 1 | 1 | 6 December 2016 | 6 December 2016 |
| Alnitak GmbH | 1 | 1 | 3 March 2017 | 3 March 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 30 March 2009 | 30 March 2009 |
| Atomstream Limited | 1 | 1 | 14 May 2010 | 14 May 2010 |
| Barritec Limited | 1 | 1 | 28 September 2011 | 28 September 2011 |
| Barritel Limited | 1 | 1 | 26 June 2007 | 26 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 21 October 2020 | 21 October 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 | 14 July 2009 | 14 July 2009 |
| Colt Technology Services | 1 | 1 | 4 July 2016 | 4 July 2016 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 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 | 18 February 2021 | 18 February 2021 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
| Datazero Ltd | 1 | 1 | 15 November 2010 | 15 November 2010 |
| Dial 9 Communications Limited | 1 | 1 | 8 January 2020 | 8 January 2020 |
| Digitech Solutions Global Limited | 1 | 1 | 26 June 2012 | 26 June 2012 |
Showing the 30 largest of 86 holders.
All number blocks on 01673first 200 of 424, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 167300 | Protected | — |
| +44 167301 | Protected | — |
| +44 167302 | Protected | — |
| +44 167303 | Protected | — |
| +44 167304 | Protected | — |
| +44 167305 | Protected | — |
| +44 167306 | Protected | — |
| +44 167307 | Protected | — |
| +44 167308 | Protected | — |
| +44 167309 | Protected | — |
| +44 167310 | Protected | — |
| +44 167311 | Protected | — |
| +44 167312 | Protected | — |
| +44 167313 | Protected | — |
| +44 167314 | Protected | — |
| +44 167315 | Protected | — |
| +44 167316 | Protected | — |
| +44 167317 | Protected | — |
| +44 167318 | Protected | — |
| +44 167319 | Protected | — |
| +44 1673200 | Protected | — |
| +44 1673201 | Protected | — |
| +44 1673202 | Protected | — |
| +44 1673203 | Protected | — |
| +44 1673204 | Allocated | Six Degrees Technology Group Limited |
| +44 1673205 | Protected | — |
| +44 1673206 | Protected | — |
| +44 1673207 | Protected | — |
| +44 1673208 | Protected | — |
| +44 1673209 | Protected | — |
| +44 1673210 | Allocated | DRD Communications Limited |
| +44 1673211 | Protected | — |
| +44 1673212 | Protected | — |
| +44 1673213 | Protected | — |
| +44 1673214 | Protected | — |
| +44 1673215 | Protected | — |
| +44 1673216 | Protected | — |
| +44 1673217 | Protected | — |
| +44 1673218 | Protected | — |
| +44 1673219 | Protected | — |
| +44 167322 | Protected | — |
| +44 167323 | Allocated | BT |
| +44 1673240 | Allocated | Nuso Cloud UK Limited |
| +44 1673241 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1673242 | Allocated | Fuse 2 Communications Ltd |
| +44 1673243 | Allocated | I.T Communications Limited |
| +44 1673244 | Allocated | Redwood Technologies Ltd |
| +44 1673245 | Allocated | TGL Services (UK) Ltd |
| +44 1673246 | Allocated | Colt Technology Services |
| +44 1673247 | Protected | — |
| +44 1673248 | Allocated | Adepteo Limited |
| +44 1673249 | Protected | — |
| +44 1673250 | Allocated | Linear Telecoms Limited |
| +44 1673251 | Allocated | Internexus Networks Limited |
| +44 1673252 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1673253 | Allocated | Hello Telecom (UK) Limited |
| +44 1673254 | Allocated | Bicom Systems EURL |
| +44 1673255 | Protected | — |
| +44 1673256 | Allocated | Invoco Ltd |
| +44 1673257 | Allocated | 8x8 Communications UK Limited |
| +44 1673258 | Allocated | ICC Networks Ltd |
| +44 1673259 | Allocated | Ziron Limited |
| +44 167326 | Allocated | Gamma Telecom Holdings Limited |
| +44 1673270 | Allocated | Digitech Solutions Global Limited |
| +44 1673271 | Allocated | IOVOX Limited |
| +44 1673272 | Allocated | Content Guru Limited |
| +44 1673273 | Allocated | Minotaur Telecom Limited |
| +44 1673274 | Allocated | Simwood eSMS Limited |
| +44 1673275 | Allocated | Orbtalk Limited |
| +44 1673276 | Allocated | Kalnet4U Ltd |
| +44 1673277 | Protected | — |
| +44 1673278 | Protected | — |
| +44 1673279 | Allocated | XoverX Ltd |
| +44 167328 | Allocated | TTNC Limited |
| +44 167329 | Allocated | Flextel Limited |
| +44 1673300 | Protected | — |
| +44 1673301 | Protected | — |
| +44 1673302 | Protected | — |
| +44 1673303 | Protected | — |
| +44 1673304 | Protected | — |
| +44 1673305 | Protected | — |
| +44 1673306 | Protected | — |
| +44 1673307 | Protected | — |
| +44 1673308 | Allocated | TalkTalk Communications Limited |
| +44 1673309 | Allocated | TalkTalk Communications Limited |
| +44 167331 | Allocated | (AQ) LIMITED |
| +44 167332 | Protected | — |
| +44 167333 | Allocated | Net-Work Internet Ltd |
| +44 167334 | Allocated | VoIP-Un Limited |
| +44 167335 | Allocated | Voiceflex Limited |
| +44 167336 | Allocated | Redcentric Solutions Limited |
| +44 167337 | Allocated | AQL Wholesale Ltd |
| +44 167338 | Allocated | Telecom2 Limited |
| +44 167339 | Allocated | Digital Space Group Limited |
| +44 167340 | Allocated | Nodemax Limited |
| +44 1673410 | Allocated | Voxbone SA |
| +44 1673411 | Protected | — |
| +44 1673412 | Protected | — |
| +44 1673413 | Protected | — |
| +44 1673414 | Protected | — |
| +44 1673415 | Protected | — |
| +44 1673416 | Protected | — |
| +44 1673417 | Protected | — |
| +44 1673418 | Protected | — |
| +44 1673419 | Protected | — |
| +44 167342 | Protected | — |
| +44 167343 | Protected | — |
| +44 167344 | Allocated | Served Up Limited |
| +44 167345 | Allocated | Solutios Limited |
| +44 167346 | Allocated | Mars Communications Limited |
| +44 1673470 | Protected | — |
| +44 1673471 | Protected | — |
| +44 1673472 | Protected | — |
| +44 1673473 | Protected | — |
| +44 1673474 | Protected | — |
| +44 1673475 | Protected | — |
| +44 1673476 | Protected | — |
| +44 1673477 | Allocated | Digital Space Group Limited |
| +44 1673478 | Protected | — |
| +44 1673479 | Protected | — |
| +44 167348 | Quarantined | — |
| +44 167349 | Quarantined | — |
| +44 167350 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 167351 | Allocated | CFL Communications Ltd |
| +44 167352 | Allocated | Telecoms World Limited |
| +44 167353 | Protected | — |
| +44 167354 | Allocated | Nexus Telecommunications Limited |
| +44 1673550 | Allocated | YayYay Limited |
| +44 1673551 | Allocated | Core Telecom Limited |
| +44 1673552 | Allocated | Datazero Ltd |
| +44 1673553 | Allocated | Telappliant Limited |
| +44 1673554 | Allocated | VoiceHost Limited |
| +44 1673555 | Allocated | Suretec Systems Ltd |
| +44 1673556 | Allocated | Atomstream Limited |
| +44 1673557 | Allocated | Windsor Telecom Limited |
| +44 1673558 | Allocated | GCI Network Solutions Limited |
| +44 1673559 | Allocated | Telephone Box Limited |
| +44 1673560 | Protected | — |
| +44 1673561 | Allocated | Phone Co-Op Numbering Limited |
| +44 1673562 | Protected | — |
| +44 1673563 | Allocated | Invosys Limited |
| +44 1673564 | Allocated | Nexbridge Communications Limited |
| +44 1673565 | Allocated | Sky UK Limited |
| +44 1673566 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1673567 | Protected | — |
| +44 1673568 | Allocated | Barritec Limited |
| +44 1673569 | Allocated | TalkTalk Communications Limited |
| +44 1673570 | Allocated | Mi Telecom Limited |
| +44 1673571 | Allocated | BT |
| +44 1673572 | Allocated | Sky UK Limited |
| +44 1673573 | Free | — |
| +44 1673574 | Allocated | DIDWW Ireland Limited |
| +44 1673575 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1673576 | Allocated | ICUK Computing Services Limited |
| +44 1673577 | Allocated | KCOM Group Ltd |
| +44 1673578 | Allocated | Belgacom International Carrier Services SA |
| +44 1673579 | Allocated | Bink Networks Ltd |
| +44 1673580 | Free | — |
| +44 1673581 | Free | — |
| +44 1673582 | Free | — |
| +44 1673583 | Free | — |
| +44 1673584 | Free | — |
| +44 1673585 | Protected | — |
| +44 1673586 | Protected | — |
| +44 1673587 | Protected | — |
| +44 1673588 | Protected | — |
| +44 1673589 | Protected | — |
| +44 1673590 | Protected | — |
| +44 1673591 | Protected | — |
| +44 1673592 | Protected | — |
| +44 1673593 | Protected | — |
| +44 1673594 | Protected | — |
| +44 1673595 | Protected | — |
| +44 1673596 | Protected | — |
| +44 1673597 | Protected | — |
| +44 1673598 | Protected | — |
| +44 1673599 | Protected | — |
| +44 1673600 | Allocated | Alnitak GmbH |
| +44 1673601 | Allocated | Virgin Media Limited |
| +44 1673602 | Allocated | EVE CONNECT LTD |
| +44 1673603 | Allocated | Zapappi Ltd |
| +44 1673604 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1673605 | Allocated | Dial 9 Communications Limited |
| +44 1673606 | Allocated | Number Services Ltd. |
| +44 1673607 | Allocated | IP Voice Networks Ltd |
| +44 1673608 | Protected | — |
| +44 1673609 | Allocated | Fuse 2 Communications Ltd |
| +44 1673610 | Protected | — |
| +44 1673611 | Protected | — |
| +44 1673612 | Protected | — |
| +44 1673613 | Protected | — |
| +44 1673614 | Protected | — |
| +44 1673615 | Protected | — |
| +44 1673616 | Protected | — |
| +44 1673617 | Protected | — |
| +44 1673618 | Protected | — |
| +44 1673619 | Protected | — |
| +44 1673620 | Protected | — |
| +44 1673621 | Protected | — |
| +44 1673622 | Protected | — |
Related lookups
- 01652 Brigg21 km away
- 01522 Lincoln22 km away
- 01472 Grimsby24 km away
- 01469 Killingholme27 km away
- BT10 allocated blocks on 01673
- Vodafone Ltd (C&W)8 allocated blocks on 01673
- TalkTalk Communications Limited3 allocated blocks on 01673
- All UK towns A–ZDialling codes by town
- More Lincolnshire 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 01673
Where is area code 01673?
01673 is Ofcom's Market Rasen numbering area, in Lincolnshire, East Midlands England. Its exchange town is in Lincolnshire. From abroad, drop the 0 and dial +44 1673.
Do I need to dial 01673 for a local call?
Traditionally not from another 01673 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01673 first always works, and mobiles always need it.
How are 01673 numbers written?
Numbers on 01673 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01673 234 567. From abroad the leading zero is dropped: +44 1673 then the local number.
What was the 01673 area code before?
01673 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 0673. Old signage or stationery showing 0673 refers to the same Market Rasen numbers.
Which phone companies hold 01673 numbers?
Ofcom lists 86 providers with allocated blocks on 01673. The largest are BT with 10 of the 108 allocated blocks, Vodafone with 8 of the 108 allocated blocks and TalkTalk Communications Limited with 3 of the 108 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 01673?
By distance between exchange towns, the nearest other codes are 01652 Brigg (21 km), 01522 Lincoln (22 km), 01472 Grimsby (24 km) and 01469 Killingholme (27 km).
How do I report a scam call from a 01673 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.