UK area code
01661 area code — Prudhoe
01661 is Ofcom’s Prudhoe numbering area, in Northumberland, North East England. 85 phone companies hold its 110 allocated number blocks. Its numbers are written like 01661 234 567. The nearest other codes are 01207 Consett (12 km) and 0191 Tyneside / Newcastle / Sunderland / Durham (16 km).
01661 at a glance
- Ofcom area name
- Prudhoe
- County
- Northumberland
- Council area
- Northumberland
- Region
- North East England
- Number format
- 01661 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0661)
- Allocated blocks
- 110 of 388 (28%) across 85 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 01661 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.
01661 history and number format
Number format: Numbers on 01661 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01661 234 567.
Before 1995: 01661 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 0661.
Local dialling: Traditionally not from another 01661 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01661 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01661 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 01661 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01661 numbers
Every Ofcom range holder with blocks on 01661, 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 | 8 | 8 | 15 July 1994 | 5 August 2020 |
| TalkTalk Communications Limited | 3 | 3 | 20 January 2012 | 12 February 2013 |
| Vodafone Ltd (C&W) | 3 | 3 | 9 September 2013 | 16 November 2021 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 5 October 2023 |
| Digital Space Group Limited | 2 | 2 | 19 May 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Six Degrees Technology Group Limited | 2 | 2 | 3 April 2020 | 3 April 2020 |
| (AQ) LIMITED | 1 | 1 | 12 September 2012 | 12 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 21 January 2020 | 21 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 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 27 March 2009 | 27 March 2009 |
| Atomstream Limited | 1 | 1 | 14 May 2010 | 14 May 2010 |
| Barritel Limited | 1 | 1 | 27 June 2007 | 27 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 9 April 2020 | 9 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 | 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 |
| DIDWW Ireland Limited | 1 | 1 | 27 January 2020 | 27 January 2020 |
| Dial 9 Communications Limited | 1 | 1 | 10 December 2019 | 10 December 2019 |
| Digitech Solutions Global Limited | 1 | 1 | 27 April 2010 | 27 April 2010 |
| EVE CONNECT LTD | 1 | 1 | 15 June 2022 | 15 June 2022 |
| Flextel Limited | 1 | 1 | 10 November 2005 | 10 November 2005 |
| Gamma Telecom Holdings Limited | 1 | 1 | 25 April 2005 | 25 April 2005 |
| Hello Telecom (UK) Limited | 1 | 1 | 17 November 2011 | 17 November 2011 |
Showing the 30 largest of 85 holders.
All number blocks on 01661first 200 of 388, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 166100 | Protected | — |
| +44 166101 | Protected | — |
| +44 166102 | Protected | — |
| +44 166103 | Protected | — |
| +44 166104 | Protected | — |
| +44 166105 | Protected | — |
| +44 166106 | Protected | — |
| +44 166107 | Protected | — |
| +44 166108 | Protected | — |
| +44 166109 | Protected | — |
| +44 166110 | Protected | — |
| +44 166111 | Protected | — |
| +44 166112 | Protected | — |
| +44 166113 | Protected | — |
| +44 166114 | Protected | — |
| +44 166115 | Protected | — |
| +44 166116 | Protected | — |
| +44 166117 | Protected | — |
| +44 166118 | Protected | — |
| +44 166119 | Protected | — |
| +44 1661200 | Protected | — |
| +44 1661201 | Protected | — |
| +44 1661202 | Protected | — |
| +44 1661203 | Protected | — |
| +44 1661204 | Protected | — |
| +44 1661205 | Protected | — |
| +44 1661206 | Protected | — |
| +44 1661207 | Protected | — |
| +44 1661208 | Protected | — |
| +44 1661209 | Protected | — |
| +44 166121 | Protected | — |
| +44 166122 | Protected | — |
| +44 1661230 | Allocated | DRD Communications Limited |
| +44 1661231 | Allocated | DRD Communications Limited |
| +44 1661232 | Protected | — |
| +44 1661233 | Protected | — |
| +44 1661234 | Protected | — |
| +44 1661235 | Protected | — |
| +44 1661236 | Protected | — |
| +44 1661237 | Protected | — |
| +44 1661238 | Protected | — |
| +44 1661239 | Protected | — |
| +44 1661240 | Allocated | EVE CONNECT LTD |
| +44 1661241 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1661242 | Allocated | SiPalto Ltd |
| +44 1661243 | Allocated | BT |
| +44 1661244 | Allocated | ICUK Computing Services Limited |
| +44 1661245 | Allocated | Dial 9 Communications Limited |
| +44 1661246 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1661247 | Allocated | Mi Telecom Limited |
| +44 1661248 | Allocated | Belgacom International Carrier Services SA |
| +44 1661249 | Allocated | DIDWW Ireland Limited |
| +44 166125 | Allocated | TTNC Limited |
| +44 166126 | Protected | — |
| +44 1661270 | Protected | — |
| +44 1661271 | Protected | — |
| +44 1661272 | Protected | — |
| +44 1661273 | Protected | — |
| +44 1661274 | Protected | — |
| +44 1661275 | Protected | — |
| +44 1661276 | Protected | — |
| +44 1661277 | Allocated | Spitfire Network Services Limited |
| +44 1661278 | Protected | — |
| +44 1661279 | Protected | — |
| +44 166128 | Allocated | TelNG Limited |
| +44 166129 | Allocated | Localphone Limited |
| +44 166130 | Allocated | Voiceflex Limited |
| +44 166131 | Allocated | AQL Wholesale Ltd |
| +44 166132 | Allocated | Barritel Limited |
| +44 166133 | Protected | — |
| +44 166134 | Allocated | (AQ) LIMITED |
| +44 1661350 | Protected | — |
| +44 1661351 | Protected | — |
| +44 1661352 | Protected | — |
| +44 1661353 | Protected | — |
| +44 1661354 | Protected | — |
| +44 1661355 | Protected | — |
| +44 1661356 | Protected | — |
| +44 1661357 | Allocated | Digital Space Group Limited |
| +44 1661358 | Protected | — |
| +44 1661359 | Protected | — |
| +44 166136 | Allocated | Redcentric Solutions Limited |
| +44 166137 | Allocated | VoIP-Un Limited |
| +44 166138 | Allocated | Telecom2 Limited |
| +44 166139 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 166140 | Allocated | Digital Space Group Limited |
| +44 166141 | Allocated | Nodemax Limited |
| +44 166142 | Protected | — |
| +44 1661430 | Allocated | Voxbone SA |
| +44 1661431 | Protected | — |
| +44 1661432 | Protected | — |
| +44 1661433 | Protected | — |
| +44 1661434 | Protected | — |
| +44 1661435 | Protected | — |
| +44 1661436 | Protected | — |
| +44 1661437 | Protected | — |
| +44 1661438 | Protected | — |
| +44 1661439 | Protected | — |
| +44 166144 | Allocated | Net-Work Internet Ltd |
| +44 166145 | Protected | — |
| +44 166146 | Allocated | Served Up Limited |
| +44 166147 | Allocated | Solutios Limited |
| +44 166148 | Quarantined | — |
| +44 166149 | Allocated | Mars Communications Limited |
| +44 1661500 | Protected | — |
| +44 1661501 | Protected | — |
| +44 1661502 | Protected | — |
| +44 1661503 | Protected | — |
| +44 1661504 | Protected | — |
| +44 1661505 | Protected | — |
| +44 1661506 | Protected | — |
| +44 1661507 | Protected | — |
| +44 1661508 | Protected | — |
| +44 1661509 | Allocated | Vodafone Ltd (C&W) |
| +44 166151 | Protected | — |
| +44 166152 | Allocated | Gamma Telecom Holdings Limited |
| +44 1661530 | Allocated | Linear Telecoms Limited |
| +44 1661531 | Allocated | TalkTalk Communications Limited |
| +44 1661532 | Allocated | Hello Telecom (UK) Limited |
| +44 1661533 | Protected | — |
| +44 1661534 | Allocated | Internexus Networks Limited |
| +44 1661535 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1661536 | Allocated | Simwood eSMS Limited |
| +44 1661537 | Protected | — |
| +44 1661538 | Allocated | Invoco Ltd |
| +44 1661539 | Allocated | Bicom Systems EURL |
| +44 1661540 | Allocated | Six Degrees Technology Group Limited |
| +44 1661541 | Protected | — |
| +44 1661542 | Protected | — |
| +44 1661543 | Protected | — |
| +44 1661544 | Allocated | Six Degrees Technology Group Limited |
| +44 1661545 | Protected | — |
| +44 1661546 | Protected | — |
| +44 1661547 | Protected | — |
| +44 1661548 | Protected | — |
| +44 1661549 | Protected | — |
| +44 1661550 | Allocated | GCI Network Solutions Limited |
| +44 1661551 | Allocated | GCI Network Solutions Limited |
| +44 1661552 | Allocated | GCI Network Solutions Limited |
| +44 1661553 | Allocated | GCI Network Solutions Limited |
| +44 1661554 | Allocated | GCI Network Solutions Limited |
| +44 1661555 | Allocated | GCI Network Solutions Limited |
| +44 1661556 | Allocated | GCI Network Solutions Limited |
| +44 1661557 | Allocated | GCI Network Solutions Limited |
| +44 1661558 | Allocated | GCI Network Solutions Limited |
| +44 1661559 | Allocated | GCI Network Solutions Limited |
| +44 166156 | Allocated | GCI Network Solutions Limited |
| +44 166157 | Allocated | Flextel Limited |
| +44 1661580 | Allocated | Virgin Media Limited |
| +44 1661581 | Free | — |
| +44 1661582 | Free | — |
| +44 1661583 | Free | — |
| +44 1661584 | Free | — |
| +44 1661585 | Allocated | KCOM Group Ltd |
| +44 1661586 | Free | — |
| +44 1661587 | Free | — |
| +44 1661588 | Allocated | Bink Networks Ltd |
| +44 1661589 | Free | — |
| +44 1661590 | Protected | — |
| +44 1661591 | Protected | — |
| +44 1661592 | Protected | — |
| +44 1661593 | Protected | — |
| +44 1661594 | Protected | — |
| +44 1661595 | Protected | — |
| +44 1661596 | Protected | — |
| +44 1661597 | Protected | — |
| +44 1661598 | Allocated | TalkTalk Communications Limited |
| +44 1661599 | Allocated | TalkTalk Communications Limited |
| +44 166160 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 166161 | Allocated | Sky UK Limited |
| +44 166162 | Allocated | Telecoms World Direct Limited |
| +44 166163 | Allocated | Invade International Ltd |
| +44 166164 | Quarantined | — |
| +44 166165 | Allocated | Nexus Telecommunications Limited |
| +44 166166 | Allocated | CFL Communications Ltd |
| +44 1661670 | Allocated | Digitech Solutions Global Limited |
| +44 1661671 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1661672 | Allocated | Windsor Telecom Limited |
| +44 1661673 | Allocated | Telephone Box Limited |
| +44 1661674 | Protected | — |
| +44 1661675 | Allocated | Phone Co-Op Numbering Limited |
| +44 1661676 | Allocated | Suretec Systems Ltd |
| +44 1661677 | Allocated | Atomstream Limited |
| +44 1661678 | Allocated | Telappliant Limited |
| +44 1661679 | Allocated | VoiceHost Limited |
| +44 166168 | Protected | — |
| +44 1661690 | Allocated | Invosys Limited |
| +44 1661691 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1661692 | Allocated | Nexbridge Communications Limited |
| +44 1661693 | Protected | — |
| +44 1661694 | Protected | — |
| +44 1661695 | Allocated | 8x8 Communications UK Limited |
| +44 1661696 | Allocated | ICC Networks Ltd |
| +44 1661697 | Allocated | IOVOX Limited |
| +44 1661698 | Allocated | Ziron Limited |
| +44 1661699 | Protected | — |
| +44 166170 | Protected | — |
| +44 1661710 | Allocated | Content Guru Limited |
| +44 1661711 | Allocated | Minotaur Telecom Limited |
| +44 1661712 | Allocated | TGL Services (UK) Ltd |
Related lookups
- 01207 Consett12 km away
- 0191 Tyneside / Newcastle / Sunderland / Durham16 km away
- 01830 Kirkwhelpington24 km away
- 01670 Morpeth25 km away
- GCI Network Solutions Limited11 allocated blocks on 01661
- BT8 allocated blocks on 01661
- TalkTalk Communications Limited3 allocated blocks on 01661
- All UK towns A–ZDialling codes by town
- More Northumberland 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 01661
Where is area code 01661?
01661 is Ofcom's Prudhoe numbering area, in Northumberland, North East England. Its exchange town is in Northumberland. From abroad, drop the 0 and dial +44 1661.
Do I need to dial 01661 for a local call?
Traditionally not from another 01661 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01661 first always works, and mobiles always need it.
How are 01661 numbers written?
Numbers on 01661 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01661 234 567. From abroad the leading zero is dropped: +44 1661 then the local number.
What was the 01661 area code before?
01661 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 0661. Old signage or stationery showing 0661 refers to the same Prudhoe numbers.
Which phone companies hold 01661 numbers?
Ofcom lists 85 providers with allocated blocks on 01661. The largest are GCI Network Solutions Limited with 11 of the 110 allocated blocks, BT with 8 of the 110 allocated blocks and TalkTalk Communications Limited with 3 of the 110 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 01661?
By distance between exchange towns, the nearest other codes are 01207 Consett (12 km), 0191 Tyneside / Newcastle / Sunderland / Durham (16 km), 01830 Kirkwhelpington (24 km) and 01670 Morpeth (25 km).
How do I report a scam call from a 01661 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.