UK area code
01790 area code — Spilsby
01790 is Ofcom’s Spilsby numbering area, in Lincolnshire, East Midlands England. 79 phone companies hold its 91 allocated number blocks. Its numbers are written like 01790 234 567. The nearest other codes are 01507 Louth (0 km) and 01754 Skegness (16 km).
01790 at a glance
- Ofcom area name
- Spilsby
- County
- Lincolnshire
- Council area
- Lincolnshire
- Region
- East Midlands England
- Number format
- 01790 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0790)
- Allocated blocks
- 91 of 478 (19%) across 79 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 01790 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 01790 numbers: 1
1 scam. Too few to show shares yet.
Most-reported and most-checked 01790 numbers
| Number | Verdicts | Reports | People checking |
|---|---|---|---|
| 01790 612607 | 1 scam | — | 1 |
If a 01790 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.
01790 history and number format
Number format: Numbers on 01790 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01790 234 567.
Before 1995: 01790 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 0790.
Local dialling: Traditionally not from another 01790 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01790 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01790 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 01790 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01790 numbers
Every Ofcom range holder with blocks on 01790, 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 |
|---|---|---|---|---|
| Gamma Telecom Holdings Limited | 7 | 7 | 8 February 2013 | 8 February 2013 |
| BT | 3 | 3 | 15 July 1994 | 15 February 1996 |
| Digital Space Group Limited | 2 | 2 | 23 May 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| ICUK Computing Services Limited | 2 | 2 | 5 June 2020 | 5 June 2020 |
| TalkTalk Communications Limited | 2 | 2 | 20 January 2012 | 20 January 2012 |
| (AQ) LIMITED | 1 | 1 | 26 September 2012 | 26 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 21 January 2020 | 21 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 10 April 2012 | 10 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 6 December 2016 | 6 December 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 2 April 2009 | 2 April 2009 |
| Atomstream Limited | 1 | 1 | 14 May 2010 | 14 May 2010 |
| Barritel Limited | 1 | 1 | 12 June 2007 | 12 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 24 April 2020 | 24 April 2020 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| CFL Communications Ltd | 1 | 1 | 17 July 2009 | 17 July 2009 |
| Colt Technology Services | 1 | 1 | 20 June 2016 | 20 June 2016 |
| Content Guru Limited | 1 | 1 | 11 October 2012 | 11 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| Datazero Ltd | 1 | 1 | 3 December 2010 | 3 December 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 |
| EVE CONNECT LTD | 1 | 1 | 20 June 2022 | 20 June 2022 |
| Flextel Limited | 1 | 1 | 10 November 2005 | 10 November 2005 |
| GCI Network Solutions Limited | 1 | 1 | 20 December 2023 | 20 December 2023 |
| Hello Telecom (UK) Limited | 1 | 1 | 24 November 2011 | 24 November 2011 |
| I.T Communications Limited | 1 | 1 | 18 April 2016 | 18 April 2016 |
| ICC Networks Ltd | 1 | 1 | 17 April 2012 | 17 April 2012 |
| INTELLIGENT EXCHANGES LIMITED | 1 | 1 | 26 January 2026 | 26 January 2026 |
Showing the 30 largest of 79 holders.
All number blocks on 01790first 200 of 478, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 179000 | Protected | — |
| +44 179001 | Protected | — |
| +44 179002 | Protected | — |
| +44 179003 | Protected | — |
| +44 179004 | Protected | — |
| +44 179005 | Protected | — |
| +44 179006 | Protected | — |
| +44 179007 | Protected | — |
| +44 179008 | Protected | — |
| +44 179009 | Protected | — |
| +44 179010 | Protected | — |
| +44 179011 | Protected | — |
| +44 179012 | Protected | — |
| +44 179013 | Protected | — |
| +44 179014 | Protected | — |
| +44 179015 | Protected | — |
| +44 179016 | Protected | — |
| +44 179017 | Protected | — |
| +44 179018 | Protected | — |
| +44 179019 | Protected | — |
| +44 1790200 | Allocated | Linear Telecoms Limited |
| +44 1790201 | Allocated | Nuso Cloud UK Limited |
| +44 1790202 | Protected | — |
| +44 1790203 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1790204 | Allocated | Internexus Networks Limited |
| +44 1790205 | Allocated | Hello Telecom (UK) Limited |
| +44 1790206 | Allocated | Bicom Systems EURL |
| +44 1790207 | Protected | — |
| +44 1790208 | Allocated | Simwood eSMS Limited |
| +44 1790209 | Allocated | 8x8 Communications UK Limited |
| +44 179021 | Allocated | Flextel Limited |
| +44 179022 | Allocated | BT |
| +44 179023 | Protected | — |
| +44 1790240 | Allocated | Digitech Solutions Global Limited |
| +44 1790241 | Allocated | Ziron Limited |
| +44 1790242 | Allocated | Minotaur Telecom Limited |
| +44 1790243 | Allocated | IOVOX Limited |
| +44 1790244 | Allocated | Content Guru Limited |
| +44 1790245 | Allocated | Invoco Ltd |
| +44 1790246 | Protected | — |
| +44 1790247 | Allocated | ICC Networks Ltd |
| +44 1790248 | Allocated | Kalnet4U Ltd |
| +44 1790249 | Allocated | XoverX Ltd |
| +44 1790250 | Protected | — |
| +44 1790251 | Protected | — |
| +44 1790252 | Protected | — |
| +44 1790253 | Protected | — |
| +44 1790254 | Allocated | Six Degrees Technology Group Limited |
| +44 1790255 | Protected | — |
| +44 1790256 | Protected | — |
| +44 1790257 | Protected | — |
| +44 1790258 | Protected | — |
| +44 1790259 | Protected | — |
| +44 1790260 | Protected | — |
| +44 1790261 | Protected | — |
| +44 1790262 | Protected | — |
| +44 1790263 | Protected | — |
| +44 1790264 | Protected | — |
| +44 1790265 | Protected | — |
| +44 1790266 | Protected | — |
| +44 1790267 | Protected | — |
| +44 1790268 | Protected | — |
| +44 1790269 | Protected | — |
| +44 1790270 | Protected | — |
| +44 1790271 | Protected | — |
| +44 1790272 | Protected | — |
| +44 1790273 | Protected | — |
| +44 1790274 | Protected | — |
| +44 1790275 | Protected | — |
| +44 1790276 | Protected | — |
| +44 1790277 | Allocated | Spitfire Network Services Limited |
| +44 1790278 | Protected | — |
| +44 1790279 | Protected | — |
| +44 179028 | Allocated | TTNC Limited |
| +44 179029 | Protected | — |
| +44 179030 | Allocated | TelNG Limited |
| +44 179031 | Allocated | Localphone Limited |
| +44 179032 | Allocated | (AQ) LIMITED |
| +44 179033 | Allocated | Barritel Limited |
| +44 179034 | Protected | — |
| +44 179035 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 179036 | Allocated | VoIP-Un Limited |
| +44 1790370 | Protected | — |
| +44 1790371 | Protected | — |
| +44 1790372 | Protected | — |
| +44 1790373 | Protected | — |
| +44 1790374 | Protected | — |
| +44 1790375 | Protected | — |
| +44 1790376 | Protected | — |
| +44 1790377 | Protected | — |
| +44 1790378 | Allocated | TalkTalk Communications Limited |
| +44 1790379 | Allocated | TalkTalk Communications Limited |
| +44 179038 | Allocated | AQL Wholesale Ltd |
| +44 1790390 | Protected | — |
| +44 1790391 | Protected | — |
| +44 1790392 | Protected | — |
| +44 1790393 | Protected | — |
| +44 1790394 | Protected | — |
| +44 1790395 | Protected | — |
| +44 1790396 | Protected | — |
| +44 1790397 | Allocated | Digital Space Group Limited |
| +44 1790398 | Protected | — |
| +44 1790399 | Protected | — |
| +44 179040 | Allocated | Redcentric Solutions Limited |
| +44 179041 | Allocated | Telecom2 Limited |
| +44 179042 | Allocated | Digital Space Group Limited |
| +44 179043 | Allocated | Nodemax Limited |
| +44 179044 | Allocated | Voiceflex Limited |
| +44 1790450 | Allocated | Voxbone SA |
| +44 1790451 | Protected | — |
| +44 1790452 | Protected | — |
| +44 1790453 | Protected | — |
| +44 1790454 | Protected | — |
| +44 1790455 | Protected | — |
| +44 1790456 | Protected | — |
| +44 1790457 | Protected | — |
| +44 1790458 | Protected | — |
| +44 1790459 | Protected | — |
| +44 179046 | Protected | — |
| +44 179047 | Allocated | Served Up Limited |
| +44 179048 | Protected | — |
| +44 179049 | Allocated | Solutios Limited |
| +44 179050 | Quarantined | — |
| +44 179051 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 179052 | Allocated | Mars Communications Limited |
| +44 179053 | Allocated | Nexus Telecommunications Limited |
| +44 179054 | Allocated | Telecoms World Limited |
| +44 179055 | Allocated | Invade International Ltd |
| +44 179056 | Quarantined | — |
| +44 179057 | Protected | — |
| +44 179058 | Allocated | CFL Communications Ltd |
| +44 1790590 | Allocated | Red Matter Limited |
| +44 1790591 | Protected | — |
| +44 1790592 | Allocated | GCI Network Solutions Limited |
| +44 1790593 | Protected | — |
| +44 1790594 | Allocated | Datazero Ltd |
| +44 1790595 | Allocated | Suretec Systems Ltd |
| +44 1790596 | Allocated | Telephone Box Limited |
| +44 1790597 | Allocated | Phone Co-Op Numbering Limited |
| +44 1790598 | Allocated | Atomstream Limited |
| +44 1790599 | Allocated | Windsor Telecom Limited |
| +44 1790600 | Allocated | Invosys Limited |
| +44 1790601 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1790602 | Allocated | Nexbridge Communications Limited |
| +44 1790603 | Protected | — |
| +44 1790604 | Allocated | Orbtalk Limited |
| +44 1790605 | Free | — |
| +44 1790606 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1790607 | Allocated | KCOM Group Ltd |
| +44 1790608 | Free | — |
| +44 1790609 | Free | — |
| +44 1790610 | Allocated | Redwood Technologies Ltd |
| +44 1790611 | Allocated | Fuse 2 Communications Ltd |
| +44 1790612 | Allocated | Sky UK Limited |
| +44 1790613 | Allocated | I.T Communications Limited |
| +44 1790614 | Allocated | Colt Technology Services |
| +44 1790615 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1790616 | Allocated | YayYay Limited |
| +44 1790617 | Allocated | Adepteo Limited |
| +44 1790618 | Protected | — |
| +44 1790619 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1790620 | Protected | — |
| +44 1790621 | Protected | — |
| +44 1790622 | Protected | — |
| +44 1790623 | Protected | — |
| +44 1790624 | Protected | — |
| +44 1790625 | Protected | — |
| +44 1790626 | Protected | — |
| +44 1790627 | Protected | — |
| +44 1790628 | Protected | — |
| +44 1790629 | Protected | — |
| +44 1790630 | Protected | — |
| +44 1790631 | Protected | — |
| +44 1790632 | Protected | — |
| +44 1790633 | Protected | — |
| +44 1790634 | Protected | — |
| +44 1790635 | Protected | — |
| +44 1790636 | Protected | — |
| +44 1790637 | Protected | — |
| +44 1790638 | Protected | — |
| +44 1790639 | Protected | — |
| +44 1790640 | Protected | — |
| +44 1790641 | Protected | — |
| +44 1790642 | Protected | — |
| +44 1790643 | Protected | — |
| +44 1790644 | Protected | — |
| +44 1790645 | Protected | — |
| +44 1790646 | Protected | — |
| +44 1790647 | Protected | — |
| +44 1790648 | Protected | — |
| +44 1790649 | Protected | — |
| +44 1790650 | Protected | — |
| +44 1790651 | Protected | — |
| +44 1790652 | Protected | — |
| +44 1790653 | Protected | — |
| +44 1790654 | Protected | — |
| +44 1790655 | Protected | — |
| +44 1790656 | Protected | — |
| +44 1790657 | Protected | — |
| +44 1790658 | Protected | — |
Related lookups
- 01507 Louth0 km away
- 01754 Skegness16 km away
- 01205 Boston23 km away
- 01526 Martin27 km away
- Gamma Telecom Holdings Limited7 allocated blocks on 01790
- BT3 allocated blocks on 01790
- Digital Space Group Limited2 allocated blocks on 01790
- 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 01790
Where is area code 01790?
01790 is Ofcom's Spilsby numbering area, in Lincolnshire, East Midlands England. Its exchange town is in Lincolnshire. From abroad, drop the 0 and dial +44 1790.
Do I need to dial 01790 for a local call?
Traditionally not from another 01790 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01790 first always works, and mobiles always need it.
How are 01790 numbers written?
Numbers on 01790 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01790 234 567. From abroad the leading zero is dropped: +44 1790 then the local number.
What was the 01790 area code before?
01790 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 0790. Old signage or stationery showing 0790 refers to the same Spilsby numbers.
Which phone companies hold 01790 numbers?
Ofcom lists 79 providers with allocated blocks on 01790. The largest are Gamma Telecom Holdings Limited with 7 of the 91 allocated blocks, BT with 3 of the 91 allocated blocks and Digital Space Group Limited with 2 of the 91 allocated blocks. Numbers can be ported, so a number's current provider may differ from the block's holder.
Are 01790 numbers reported as scams?
1 caller verdict have been left on 01790 numbers: 1 scam, 0 nuisance and 0 safe.
Which area codes are next to 01790?
By distance between exchange towns, the nearest other codes are 01507 Louth (0 km), 01754 Skegness (16 km), 01205 Boston (23 km) and 01526 Martin (27 km).
How do I report a scam call from a 01790 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.