UK area code
01600 area code — Monmouth
01600 is Ofcom’s Monmouth numbering area, in Monmouthshire, Wales. 86 phone companies hold its 104 allocated number blocks. Its numbers are written like 01600 234 567. The nearest other codes are 01989 Ross-on-Wye (14 km) and 01594 Lydney (16 km).
01600 at a glance
- Ofcom area name
- Monmouth
- Council area
- Monmouthshire
- Country
- Wales
- Number format
- 01600 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0600)
- Allocated blocks
- 104 of 406 (26%) 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.
What people check and report about 01600 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 01600 numbers: 1
1 scam. Too few to show shares yet.
Most-reported and most-checked 01600 numbers
| Number | Verdicts | Reports | People checking |
|---|---|---|---|
| 01600 605898 | 1 scam | — | 1 |
If a 01600 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.
01600 history and number format
Number format: Numbers on 01600 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01600 234 567.
Before 1995: 01600 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 0600.
Local dialling: Traditionally not from another 01600 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01600 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01600 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 01600 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01600 numbers
Every Ofcom range holder with blocks on 01600, 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 | 9 | 9 | 15 July 1994 | 11 March 2021 |
| TalkTalk Communications Limited | 3 | 3 | 20 January 2012 | 12 February 2013 |
| Colt Technology Services | 2 | 2 | 7 May 2015 | 27 April 2022 |
| 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 | 2 May 2017 | 22 December 2023 |
| Six Degrees Technology Group Limited | 2 | 2 | 8 April 2020 | 8 April 2020 |
| Sky UK Limited | 2 | 2 | 2 July 2013 | 18 June 2021 |
| Vodafone Ltd (C&W) | 2 | 2 | 6 September 2013 | 16 November 2021 |
| VoiceHost Limited | 2 | 2 | 5 October 2010 | 5 October 2010 |
| (AQ) LIMITED | 1 | 1 | 11 September 2012 | 11 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 | 1 November 2004 | 1 November 2004 |
| Adepteo Limited | 1 | 1 | 17 January 2017 | 17 January 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 23 March 2009 | 23 March 2009 |
| Atomstream Limited | 1 | 1 | 12 May 2010 | 12 May 2010 |
| Barritel Limited | 1 | 1 | 22 June 2007 | 22 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 10 November 2020 | 10 November 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 |
| 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 | 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 | 21 October 2005 | 21 October 2005 |
Showing the 30 largest of 86 holders.
All number blocks on 01600first 200 of 406, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 160000 | Protected | — |
| +44 160001 | Protected | — |
| +44 160002 | Protected | — |
| +44 160003 | Protected | — |
| +44 160004 | Protected | — |
| +44 160005 | Protected | — |
| +44 160006 | Protected | — |
| +44 160007 | Protected | — |
| +44 160008 | Protected | — |
| +44 160009 | Protected | — |
| +44 160010 | Protected | — |
| +44 160011 | Protected | — |
| +44 160012 | Protected | — |
| +44 160013 | Protected | — |
| +44 160014 | Protected | — |
| +44 160015 | Protected | — |
| +44 160016 | Protected | — |
| +44 160017 | Protected | — |
| +44 160018 | Protected | — |
| +44 160019 | Protected | — |
| +44 160020 | Protected | — |
| +44 160021 | Allocated | Voiceflex Limited |
| +44 1600220 | Protected | — |
| +44 1600221 | Protected | — |
| +44 1600222 | Protected | — |
| +44 1600223 | Protected | — |
| +44 1600224 | Protected | — |
| +44 1600225 | Protected | — |
| +44 1600226 | Protected | — |
| +44 1600227 | Protected | — |
| +44 1600228 | Allocated | TalkTalk Communications Limited |
| +44 1600229 | Allocated | TalkTalk Communications Limited |
| +44 160023 | Allocated | (AQ) LIMITED |
| +44 160024 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 160025 | Allocated | Redcentric Solutions Limited |
| +44 160026 | Allocated | VoIP-Un Limited |
| +44 160027 | Allocated | Telecom2 Limited |
| +44 160028 | Allocated | Digital Space Group Limited |
| +44 160029 | Allocated | Nodemax Limited |
| +44 160030 | Allocated | BT |
| +44 160031 | Protected | — |
| +44 1600320 | Allocated | Voxbone SA |
| +44 1600321 | Protected | — |
| +44 1600322 | Protected | — |
| +44 1600323 | Protected | — |
| +44 1600324 | Protected | — |
| +44 1600325 | Protected | — |
| +44 1600326 | Protected | — |
| +44 1600327 | Protected | — |
| +44 1600328 | Protected | — |
| +44 1600329 | Protected | — |
| +44 160033 | Allocated | Net-Work Internet Ltd |
| +44 160034 | Protected | — |
| +44 160035 | Allocated | Served Up Limited |
| +44 160036 | Allocated | Solutios Limited |
| +44 1600370 | Protected | — |
| +44 1600371 | Protected | — |
| +44 1600372 | Protected | — |
| +44 1600373 | Protected | — |
| +44 1600374 | Protected | — |
| +44 1600375 | Protected | — |
| +44 1600376 | Protected | — |
| +44 1600377 | Allocated | Digital Space Group Limited |
| +44 1600378 | Protected | — |
| +44 1600379 | Protected | — |
| +44 160038 | Allocated | Mars Communications Limited |
| +44 160039 | Quarantined | — |
| +44 160040 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 160041 | Allocated | Nexus Telecommunications Limited |
| +44 160042 | Allocated | Telecoms World Limited |
| +44 160043 | Allocated | Invade International Ltd |
| +44 160044 | Quarantined | — |
| +44 160045 | Allocated | CFL Communications Ltd |
| +44 1600460 | Allocated | Sky UK Limited |
| +44 1600461 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1600462 | Allocated | Windsor Telecom Limited |
| +44 1600463 | Allocated | Telappliant Limited |
| +44 1600464 | Allocated | Digitech Solutions Global Limited |
| +44 1600465 | Allocated | Atomstream Limited |
| +44 1600466 | Allocated | Suretec Systems Ltd |
| +44 1600467 | Allocated | TGL Services (UK) Ltd |
| +44 1600468 | Allocated | Core Telecom Limited |
| +44 1600469 | Allocated | VoiceHost Limited |
| +44 1600470 | Allocated | VoiceHost Limited |
| +44 1600471 | Allocated | Telephone Box Limited |
| +44 1600472 | Protected | — |
| +44 1600473 | Allocated | Phone Co-Op Numbering Limited |
| +44 1600474 | Protected | — |
| +44 1600475 | Allocated | Nexbridge Communications Limited |
| +44 1600476 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1600477 | Allocated | GCI Network Solutions Limited |
| +44 1600478 | Allocated | Invosys Limited |
| +44 1600479 | Protected | — |
| +44 1600480 | Allocated | Orbtalk Limited |
| +44 1600481 | Allocated | TalkTalk Communications Limited |
| +44 1600482 | Protected | — |
| +44 1600483 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1600484 | Protected | — |
| +44 1600485 | Allocated | Hello Telecom (UK) Limited |
| +44 1600486 | Allocated | Internexus Networks Limited |
| +44 1600487 | Protected | — |
| +44 1600488 | Allocated | Invoco Ltd |
| +44 1600489 | Allocated | Bicom Systems EURL |
| +44 1600490 | Allocated | 8x8 Communications UK Limited |
| +44 1600491 | Allocated | ICC Networks Ltd |
| +44 1600492 | Allocated | Ziron Limited |
| +44 1600493 | Allocated | Kalnet4U Ltd |
| +44 1600494 | Allocated | Content Guru Limited |
| +44 1600495 | Allocated | Minotaur Telecom Limited |
| +44 1600496 | Allocated | IOVOX Limited |
| +44 1600497 | Allocated | XoverX Ltd |
| +44 1600498 | Allocated | Simwood eSMS Limited |
| +44 1600499 | Protected | — |
| +44 1600500 | Allocated | Six Degrees Technology Group Limited |
| +44 1600501 | Protected | — |
| +44 1600502 | Protected | — |
| +44 1600503 | Protected | — |
| +44 1600504 | Allocated | Six Degrees Technology Group Limited |
| +44 1600505 | Protected | — |
| +44 1600506 | Protected | — |
| +44 1600507 | Protected | — |
| +44 1600508 | Protected | — |
| +44 1600509 | Protected | — |
| +44 1600510 | Protected | — |
| +44 1600511 | Protected | — |
| +44 1600512 | Protected | — |
| +44 1600513 | Protected | — |
| +44 1600514 | Protected | — |
| +44 1600515 | Protected | — |
| +44 1600516 | Protected | — |
| +44 1600517 | Protected | — |
| +44 1600518 | Protected | — |
| +44 1600519 | Protected | — |
| +44 1600520 | Allocated | Nuso Cloud UK Limited |
| +44 1600521 | Allocated | YayYay Limited |
| +44 1600522 | Allocated | Redwood Technologies Ltd |
| +44 1600523 | Allocated | Adepteo Limited |
| +44 1600524 | Allocated | I.T Communications Limited |
| +44 1600525 | Allocated | Fuse 2 Communications Ltd |
| +44 1600526 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1600527 | Allocated | EVE CONNECT LTD |
| +44 1600528 | Allocated | Colt Technology Services |
| +44 1600529 | Protected | — |
| +44 1600530 | Protected | — |
| +44 1600531 | Protected | — |
| +44 1600532 | Protected | — |
| +44 1600533 | Protected | — |
| +44 1600534 | Protected | — |
| +44 1600535 | Protected | — |
| +44 1600536 | Protected | — |
| +44 1600537 | Protected | — |
| +44 1600538 | Protected | — |
| +44 1600539 | Protected | — |
| +44 1600540 | Protected | — |
| +44 1600541 | Protected | — |
| +44 1600542 | Protected | — |
| +44 1600543 | Protected | — |
| +44 1600544 | Protected | — |
| +44 1600545 | Protected | — |
| +44 1600546 | Protected | — |
| +44 1600547 | Protected | — |
| +44 1600548 | Protected | — |
| +44 1600549 | Protected | — |
| +44 160055 | Allocated | Vodafone Ltd (C&W) |
| +44 160056 | Allocated | TelNG Limited |
| +44 1600570 | Protected | — |
| +44 1600571 | Protected | — |
| +44 1600572 | Protected | — |
| +44 1600573 | Protected | — |
| +44 1600574 | Protected | — |
| +44 1600575 | Protected | — |
| +44 1600576 | Protected | — |
| +44 1600577 | Allocated | Spitfire Network Services Limited |
| +44 1600578 | Protected | — |
| +44 1600579 | Protected | — |
| +44 160058 | Allocated | Localphone Limited |
| +44 160059 | Allocated | Barritel Limited |
| +44 1600600 | Protected | — |
| +44 1600601 | Allocated | Number Services Ltd. |
| +44 1600602 | Allocated | Zapappi Ltd |
| +44 1600603 | Allocated | DIDWW Ireland Limited |
| +44 1600604 | Allocated | Dial 9 Communications Limited |
| +44 1600605 | Allocated | IP Voice Networks Ltd |
| +44 1600606 | Allocated | Mintaka Limited |
| +44 1600607 | Allocated | Fuse 2 Communications Ltd |
| +44 1600608 | Allocated | Belgacom International Carrier Services SA |
| +44 1600609 | Protected | — |
| +44 1600610 | Allocated | Sky UK Limited |
| +44 1600611 | Allocated | KCOM Group Ltd |
| +44 1600612 | Free | — |
| +44 1600613 | Free | — |
| +44 1600614 | Allocated | BT |
| +44 1600615 | Allocated | Bink Networks Ltd |
| +44 1600616 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1600617 | Free | — |
| +44 1600618 | Free | — |
| +44 1600619 | Allocated | SiPalto Ltd |
| +44 1600620 | Allocated | ICUK Computing Services Limited |
| +44 1600621 | Free | — |
| +44 1600622 | Allocated | Mi Telecom Limited |
Related lookups
- 01989 Ross-on-Wye14 km away
- 01594 Lydney16 km away
- 01291 Chepstow19 km away
- 01981 Wormbridge19 km away
- BT9 allocated blocks on 01600
- TalkTalk Communications Limited3 allocated blocks on 01600
- Colt Technology Services2 allocated blocks on 01600
- All UK towns A–ZDialling codes by town
- More Wales codesSame region
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- 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 01600
Where is area code 01600?
01600 is Ofcom's Monmouth numbering area, in Monmouthshire, Wales. Its exchange town is in Monmouthshire. From abroad, drop the 0 and dial +44 1600.
Do I need to dial 01600 for a local call?
Traditionally not from another 01600 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01600 first always works, and mobiles always need it.
How are 01600 numbers written?
Numbers on 01600 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01600 234 567. From abroad the leading zero is dropped: +44 1600 then the local number.
What was the 01600 area code before?
01600 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 0600. Old signage or stationery showing 0600 refers to the same Monmouth numbers.
Which phone companies hold 01600 numbers?
Ofcom lists 86 providers with allocated blocks on 01600. The largest are BT with 9 of the 104 allocated blocks, TalkTalk Communications Limited with 3 of the 104 allocated blocks and Colt Technology Services with 2 of the 104 allocated blocks. Numbers can be ported, so a number's current provider may differ from the block's holder.
Are 01600 numbers reported as scams?
1 caller verdict have been left on 01600 numbers: 1 scam, 0 nuisance and 0 safe.
Which area codes are next to 01600?
By distance between exchange towns, the nearest other codes are 01989 Ross-on-Wye (14 km), 01594 Lydney (16 km), 01291 Chepstow (19 km) and 01981 Wormbridge (19 km).
How do I report a scam call from a 01600 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.