UK area code
01799 area code — Saffron Walden
01799 is Ofcom’s Saffron Walden numbering area, in Essex, East of England England. 90 phone companies hold its 116 allocated number blocks. Its numbers are written like 01799 234 567. The nearest other codes are 01440 Haverhill (15 km) and 01279 Bishops Stortford (18 km).
01799 at a glance
- Ofcom area name
- Saffron Walden
- County
- Essex
- Council area
- Essex
- Region
- East of England England
- Number format
- 01799 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0799)
- Allocated blocks
- 116 of 406 (29%) across 90 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 01799 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.
01799 history and number format
Number format: Numbers on 01799 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01799 234 567.
Before 1995: 01799 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 0799.
Local dialling: Traditionally not from another 01799 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01799 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01799 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 01799 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01799 numbers
Every Ofcom range holder with blocks on 01799, 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 |
|---|---|---|---|---|
| GCI Network Solutions Limited | 11 | 11 | 2 May 2017 | 26 February 2024 |
| BT | 10 | 10 | 15 July 1994 | 17 December 2020 |
| Sky UK Limited | 3 | 3 | 28 June 2013 | 9 January 2025 |
| TalkTalk Communications Limited | 3 | 3 | 20 January 2012 | 12 February 2013 |
| Digital Space Group Limited | 2 | 2 | 23 May 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Gamma Telecom Holdings Limited | 2 | 2 | 8 April 2005 | 22 September 2021 |
| (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 |
| Alnitak GmbH | 1 | 1 | 26 October 2016 | 26 October 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 | 2 October 2006 | 2 October 2006 |
| Belgacom International Carrier Services SA | 1 | 1 | 24 April 2020 | 24 April 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 | 17 July 2009 | 17 July 2009 |
| Calltracks Limited | 1 | 1 | 31 January 2014 | 31 January 2014 |
| 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 |
| Core Telecom Limited | 1 | 1 | 6 August 2010 | 6 August 2010 |
| DIDWW Ireland Limited | 1 | 1 | 21 January 2019 | 21 January 2019 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
| 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 | 9 November 2022 | 9 November 2022 |
Showing the 30 largest of 90 holders.
All number blocks on 01799first 200 of 406, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 179900 | Protected | — |
| +44 179901 | Protected | — |
| +44 179902 | Protected | — |
| +44 179903 | Protected | — |
| +44 179904 | Protected | — |
| +44 179905 | Protected | — |
| +44 179906 | Protected | — |
| +44 179907 | Protected | — |
| +44 179908 | Protected | — |
| +44 179909 | Protected | — |
| +44 179910 | Protected | — |
| +44 179911 | Protected | — |
| +44 179912 | Protected | — |
| +44 179913 | Protected | — |
| +44 179914 | Protected | — |
| +44 179915 | Protected | — |
| +44 179916 | Protected | — |
| +44 179917 | Protected | — |
| +44 179918 | Protected | — |
| +44 179919 | Protected | — |
| +44 179920 | Allocated | (AQ) LIMITED |
| +44 1799210 | Protected | — |
| +44 1799211 | Protected | — |
| +44 1799212 | Protected | — |
| +44 1799213 | Protected | — |
| +44 1799214 | Protected | — |
| +44 1799215 | Protected | — |
| +44 1799216 | Protected | — |
| +44 1799217 | Protected | — |
| +44 1799218 | Allocated | TalkTalk Communications Limited |
| +44 1799219 | Allocated | TalkTalk Communications Limited |
| +44 179922 | Protected | — |
| +44 179923 | Allocated | VoIP-Un Limited |
| +44 179924 | Allocated | Voiceflex Limited |
| +44 179925 | Allocated | AQL Wholesale Ltd |
| +44 1799260 | Protected | — |
| +44 1799261 | Protected | — |
| +44 1799262 | Protected | — |
| +44 1799263 | Protected | — |
| +44 1799264 | Protected | — |
| +44 1799265 | Protected | — |
| +44 1799266 | Protected | — |
| +44 1799267 | Allocated | Digital Space Group Limited |
| +44 1799268 | Protected | — |
| +44 1799269 | Protected | — |
| +44 179927 | Allocated | Telecom2 Limited |
| +44 1799280 | Allocated | GCI Network Solutions Limited |
| +44 1799281 | Allocated | GCI Network Solutions Limited |
| +44 1799282 | Allocated | GCI Network Solutions Limited |
| +44 1799283 | Allocated | GCI Network Solutions Limited |
| +44 1799284 | Allocated | GCI Network Solutions Limited |
| +44 1799285 | Allocated | GCI Network Solutions Limited |
| +44 1799286 | Allocated | GCI Network Solutions Limited |
| +44 1799287 | Allocated | GCI Network Solutions Limited |
| +44 1799288 | Allocated | GCI Network Solutions Limited |
| +44 1799289 | Allocated | GCI Network Solutions Limited |
| +44 179929 | Allocated | Digital Space Group Limited |
| +44 1799300 | Protected | — |
| +44 1799301 | Protected | — |
| +44 1799302 | Protected | — |
| +44 1799303 | Protected | — |
| +44 1799304 | Protected | — |
| +44 1799305 | Protected | — |
| +44 1799306 | Protected | — |
| +44 1799307 | Protected | — |
| +44 1799308 | Protected | — |
| +44 1799309 | Protected | — |
| +44 179931 | Allocated | Barritel Limited |
| +44 179932 | Allocated | TelNG Limited |
| +44 1799330 | Allocated | Minotaur Telecom Limited |
| +44 1799331 | Allocated | Internexus Networks Limited |
| +44 1799332 | Allocated | Hello Telecom (UK) Limited |
| +44 1799333 | Allocated | VoiceHost Limited |
| +44 1799334 | Allocated | Simwood eSMS Limited |
| +44 1799335 | Allocated | Bicom Systems EURL |
| +44 1799336 | Allocated | 8x8 Communications UK Limited |
| +44 1799337 | Protected | — |
| +44 1799338 | Allocated | ICC Networks Ltd |
| +44 1799339 | Allocated | Invoco Ltd |
| +44 1799340 | Protected | — |
| +44 1799341 | Protected | — |
| +44 1799342 | Protected | — |
| +44 1799343 | Protected | — |
| +44 1799344 | Protected | — |
| +44 1799345 | Protected | — |
| +44 1799346 | Protected | — |
| +44 1799347 | Protected | — |
| +44 1799348 | Protected | — |
| +44 1799349 | Protected | — |
| +44 179935 | Allocated | Flextel Limited |
| +44 1799360 | Allocated | Digitech Solutions Global Limited |
| +44 1799361 | Protected | — |
| +44 1799362 | Protected | — |
| +44 1799363 | Protected | — |
| +44 1799364 | Protected | — |
| +44 1799365 | Protected | — |
| +44 1799366 | Protected | — |
| +44 1799367 | Protected | — |
| +44 1799368 | Protected | — |
| +44 1799369 | Protected | — |
| +44 179937 | Protected | — |
| +44 179938 | Allocated | Localphone Limited |
| +44 179939 | Allocated | TTNC Limited |
| +44 179940 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 179941 | Allocated | Nodemax Limited |
| +44 1799420 | Allocated | Voxbone SA |
| +44 1799421 | Protected | — |
| +44 1799422 | Protected | — |
| +44 1799423 | Protected | — |
| +44 1799424 | Protected | — |
| +44 1799425 | Protected | — |
| +44 1799426 | Protected | — |
| +44 1799427 | Protected | — |
| +44 1799428 | Protected | — |
| +44 1799429 | Protected | — |
| +44 179943 | Protected | — |
| +44 179944 | Allocated | Served Up Limited |
| +44 179945 | Protected | — |
| +44 179946 | Allocated | Solutios Limited |
| +44 179947 | Quarantined | — |
| +44 179948 | Allocated | Mars Communications Limited |
| +44 179949 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 179950 | Allocated | Virgin Media Limited |
| +44 179951 | Allocated | BT |
| +44 179952 | Allocated | BT |
| +44 179953 | Allocated | BT |
| +44 179954 | Allocated | BT |
| +44 179955 | Allocated | BT |
| +44 179956 | Allocated | BT |
| +44 179957 | Allocated | Vodafone Ltd (C&W) |
| +44 179958 | Allocated | BT |
| +44 179959 | Allocated | BT |
| +44 179960 | Allocated | Net-Work Internet Ltd |
| +44 179961 | Allocated | Gamma Telecom Holdings Limited |
| +44 1799620 | Allocated | Linear Telecoms Limited |
| +44 1799621 | Protected | — |
| +44 1799622 | Protected | — |
| +44 1799623 | Protected | — |
| +44 1799624 | Protected | — |
| +44 1799625 | Protected | — |
| +44 1799626 | Protected | — |
| +44 1799627 | Protected | — |
| +44 1799628 | Protected | — |
| +44 1799629 | Protected | — |
| +44 1799630 | Protected | — |
| +44 1799631 | Protected | — |
| +44 1799632 | Protected | — |
| +44 1799633 | Protected | — |
| +44 1799634 | Allocated | Six Degrees Technology Group Limited |
| +44 1799635 | Protected | — |
| +44 1799636 | Protected | — |
| +44 1799637 | Protected | — |
| +44 1799638 | Protected | — |
| +44 1799639 | Protected | — |
| +44 179964 | Allocated | Redcentric Solutions Limited |
| +44 179965 | Allocated | GCI Network Solutions Limited |
| +44 179966 | Allocated | Magrathea Telecommunications Limited |
| +44 1799670 | Protected | — |
| +44 1799671 | Protected | — |
| +44 1799672 | Protected | — |
| +44 1799673 | Protected | — |
| +44 1799674 | Protected | — |
| +44 1799675 | Protected | — |
| +44 1799676 | Protected | — |
| +44 1799677 | Allocated | Spitfire Network Services Limited |
| +44 1799678 | Protected | — |
| +44 1799679 | Protected | — |
| +44 179968 | Protected | — |
| +44 1799690 | Allocated | DRD Communications Limited |
| +44 1799691 | Protected | — |
| +44 1799692 | Protected | — |
| +44 1799693 | Protected | — |
| +44 1799694 | Protected | — |
| +44 1799695 | Protected | — |
| +44 1799696 | Protected | — |
| +44 1799697 | Protected | — |
| +44 1799698 | Protected | — |
| +44 1799699 | Protected | — |
| +44 179970 | Allocated | Invade International Ltd |
| +44 179971 | Allocated | Telecoms World Limited |
| +44 179972 | Quarantined | — |
| +44 1799730 | Allocated | WightFibre Limited |
| +44 1799731 | Allocated | Invosys Limited |
| +44 1799732 | Allocated | Sky UK Limited |
| +44 1799733 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1799734 | Allocated | Nexbridge Communications Limited |
| +44 1799735 | Allocated | Orbtalk Limited |
| +44 1799736 | Allocated | TalkTalk Communications Limited |
| +44 1799737 | Protected | — |
| +44 1799738 | Protected | — |
| +44 1799739 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 179974 | Allocated | CFL Communications Ltd |
| +44 179975 | Protected | — |
| +44 179976 | Allocated | Nexus Telecommunications Limited |
| +44 179977 | Protected | — |
| +44 1799780 | Allocated | Calltracks Limited |
| +44 1799781 | Allocated | Telephone Box Limited |
| +44 1799782 | Protected | — |
| +44 1799783 | Allocated | Phone Co-Op Numbering Limited |
| +44 1799784 | Allocated | Core Telecom Limited |
Related lookups
- 01440 Haverhill15 km away
- 01279 Bishops Stortford18 km away
- 01763 Royston18 km away
- 01371 Great Dunmow19 km away
- GCI Network Solutions Limited11 allocated blocks on 01799
- BT10 allocated blocks on 01799
- Sky UK Limited3 allocated blocks on 01799
- All UK towns A–ZDialling codes by town
- More Essex 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 01799
Where is area code 01799?
01799 is Ofcom's Saffron Walden numbering area, in Essex, East of England England. Its exchange town is in Essex. From abroad, drop the 0 and dial +44 1799.
Do I need to dial 01799 for a local call?
Traditionally not from another 01799 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01799 first always works, and mobiles always need it.
How are 01799 numbers written?
Numbers on 01799 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01799 234 567. From abroad the leading zero is dropped: +44 1799 then the local number.
What was the 01799 area code before?
01799 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 0799. Old signage or stationery showing 0799 refers to the same Saffron Walden numbers.
Which phone companies hold 01799 numbers?
Ofcom lists 90 providers with allocated blocks on 01799. The largest are GCI Network Solutions Limited with 11 of the 116 allocated blocks, BT with 10 of the 116 allocated blocks and Sky UK Limited with 3 of the 116 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 01799?
By distance between exchange towns, the nearest other codes are 01440 Haverhill (15 km), 01279 Bishops Stortford (18 km), 01763 Royston (18 km) and 01371 Great Dunmow (19 km).
How do I report a scam call from a 01799 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.