01600 Area Code — Monmouth, Coleford & Raglan
01600 is the UK dialling code for Monmouth in Monmouthshire, also serving Coleford, Raglan and Llandogo, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 117 distinct 01600 numbers across 126 public lookups.
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Quick facts
Area code
01600
Location
Monmouth
County
Monmouthshire
Region
Wales
Number type
Geographic landline
Number format
01600 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01600 dialling code
01600 is the UK geographic dialling code for Monmouth, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Monmouth area.
A full Monmouth number is normally written as 01600 XXXXXX. You can dial the local part on its own from within the same area, or the full number from anywhere in the UK.
Because of UK number portability and internet calling, a 01600 number no longer guarantees the caller is physically in Monmouth. Fraudsters also "spoof" local codes like 01600 so an unknown call looks like a nearby business or neighbour — so treat an unexpected call on what is actually said, not on the area code alone.
Map of the 01600 dialling area
The marker shows Monmouth; the shaded circle is an approximate indication of the area the 01600 code serves — exact Ofcom charging-area boundaries are irregular and don't follow a neat radius.
Map data © OpenStreetMap contributors. View larger map
Areas typically served by 01600
Settlements in and around the Monmouth dialling area that typically use 01600 numbers. Approximate — Ofcom charging-area boundaries don't follow town or county lines exactly, and properties near a boundary may take a neighbouring code.
Calling 01600 from abroad
From outside the UK, dial your international access prefix, then the UK country code 44, then 1600 (the area code without its leading zero) and the local number.
| Calling from | Dial |
|---|---|
| United States & Canada | 011 44 1600 … |
| Europe / most of the world | 00 44 1600 … |
| Australia | 0011 44 1600 … |
| Any mobile phone | +44 1600 … |
History of the 01600 code
The code was 0600 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01600.
Top searched 01600 numbers
These are the 01600 numbers most-looked-up by visitors to our number checker. Click any number to see its full lookup page with risk-level, range holder, and community reports.
| Number | Searches | Last looked up |
|---|---|---|
| 01600 734492 | 4 | 15 Jun 2026 |
| 01600 313880 | 2 | 1 Jul 2026 |
| 01600 614478 | 2 | 29 Jun 2026 |
| 01600 890073 | 2 | 28 Jun 2026 |
| 01600 290106 | 2 | 27 Jun 2026 |
| 01600 890474 | 2 | 17 Jun 2026 |
| 01600 317571 | 2 | 4 Jun 2026 |
| 01600 460207 | 1 | 10 Jul 2026 |
| 01600 731363 | 1 | 10 Jul 2026 |
| 01600 730528 | 1 | 1 Jul 2026 |
| 01600 737064 | 1 | 1 Jul 2026 |
| 01600 715586 | 1 | 29 Jun 2026 |
| 01600 108912 | 1 | 29 Jun 2026 |
| 01600 312746 | 1 | 29 Jun 2026 |
| 01600 614544 | 1 | 29 Jun 2026 |
| 01600 700202 | 1 | 29 Jun 2026 |
| 01600 290101 | 1 | 29 Jun 2026 |
| 01600 313986 | 1 | 29 Jun 2026 |
| 01600 290099 | 1 | 29 Jun 2026 |
| 01600 890078 | 1 | 29 Jun 2026 |
Is a call from 01600 safe?
Most 01600 calls are ordinary local calls from Monmouth homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01600 prefix so you are more likely to answer. Never share bank details, passwords or one-time security codes with an unexpected caller, even when the number looks local — hang up and call the organisation back on a number you have verified yourself.
To call a 01600 (Monmouth) number from outside the UK, drop the leading zero and dial +44 1600 followed by the local number.
Operators serving Monmouth
These UK communications providers have been allocated 01600 number blocks by Ofcom. The number of blocks per operator gives a rough sense of how widely each provider serves this area.
| Provider (Ofcom-allocated) | Allocated blocks |
|---|---|
| BT | 9 |
| 1XXXX | 7 |
| TalkTalk Communications Limited | 3 |
| Six Degrees Technology Group Limited | 2 |
| VoiceHost Limited | 2 |
| GCI Network Solutions Limited | 2 |
| Sky UK Limited | 2 |
| Digital Space Group Limited | 2 |
Ofcom number ranges on 01600
Ofcom's National Numbering Plan lists 406 number blocks under 01600, of which 106 are allocated to 88 communications providers. The first allocated blocks are shown below — look up any full number with the number checker to see its exact range holder.
| Number block | Status | Range holder (Ofcom-allocated) |
|---|---|---|
0160021… | Allocated | Voiceflex Limited |
01600228… | Allocated | TalkTalk Communications Limited |
01600229… | Allocated | TalkTalk Communications Limited |
0160023… | Allocated | (AQ) LIMITED |
0160024… | Allocated | Nationwide Telephone Assistance Ltd |
0160025… | Allocated | Redcentric Solutions Limited |
0160026… | Allocated | VoIP-Un Limited |
0160027… | Allocated | Telecom2 Limited |
0160028… | Allocated | Digital Space Group Limited |
0160029… | Allocated | Nodemax Limited |
0160030… | Allocated | BT |
01600320… | Allocated | Voxbone SA |
Showing 12 of 106 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.
How to block and report 01600 spam calls
Block or report 01600
- You can block 01600 directly from your recent-calls list on iPhone or Android, and forward scam texts free to 7726.
- Scam or fraud calls should be reported to Action Fraud (0300 123 2040) or Police Scotland (101); persistent marketing calls to the ICO / TPS.
Full step-by-step instructions for every phone, network-level blocking and all UK reporting routes are in our guide: How to block and report unwanted calls in the UK.
How to stop unwanted calls for good
Blocking 01600 numbers stops that one number, but determined nuisance callers simply switch numbers. Silencing unknown callers, enabling your network's free spam shield and registering with the TPS cut the volume across the board — our canonical guide walks through each step: How to block and report unwanted calls in the UK.
Frequently asked questions about the 01600 code
Where is the 01600 area code?
The 01600 area code is allocated by Ofcom to Monmouth in Monmouthshire, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan. The surrounding dialling area also takes in Coleford, Raglan, Llandogo and nearby villages.
Is 01600 always a Monmouth number?
Numbers with the 01600 prefix were originally allocated by Ofcom to Monmouth. With UK number portability and VoIP allowing geographic relocation while keeping the same number, the call origin can differ from the original area, but the prefix's official assigned location remains Monmouth.
How do I block 01600 spam calls?
On iPhone, tap the (i) next to the number in Recents and choose Block this Caller. On Android, long-press the number in Recents and choose Block. To prevent unknown 01600 numbers ringing, enable Settings → Phone → Silence Unknown Callers (iPhone) or your dialler's spam filter (Android). Forward spam texts to 7726 free of charge.
How much does a 01600 call cost?
Calls to UK 01600 geographic numbers are charged at your provider's standard rate and are usually included in inclusive minutes on any modern landline or mobile plan.
Neighbouring dialling codes
Codes covering areas around Monmouth — useful when a caller is nearby but outside the 01600 boundary.
Living in or moving to Monmouth?
Our free postcode reports cover house prices, crime, broadband and schools for the districts around Monmouth.
Check another UK number
Have the full 10- or 11-digit number? The UK Phone Number Checker shows the Ofcom range holder, risk level, and any community reports for that specific number.