01623 Area Code — Mansfield
01623 is the UK dialling code for Mansfield in Nottinghamshire, also serving Sutton in Ashfield, Kirkby in Ashfield and Mansfield Woodhouse, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 561 distinct 01623 numbers across 645 public lookups.
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Quick facts
Area code
01623
Location
Mansfield
County
Nottinghamshire
Region
East Midlands
Number type
Geographic landline
Number format
01623 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01623 dialling code
01623 is the UK geographic dialling code for Mansfield, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Mansfield area.
A full Mansfield number is normally written as 01623 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 01623 number no longer guarantees the caller is physically in Mansfield. Fraudsters also "spoof" local codes like 01623 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 01623 dialling area
The marker shows Mansfield; the shaded circle is an approximate indication of the area the 01623 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 01623
Settlements in and around the Mansfield dialling area that typically use 01623 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 01623 from abroad
From outside the UK, dial your international access prefix, then the UK country code 44, then 1623 (the area code without its leading zero) and the local number.
| Calling from | Dial |
|---|---|
| United States & Canada | 011 44 1623 … |
| Europe / most of the world | 00 44 1623 … |
| Australia | 0011 44 1623 … |
| Any mobile phone | +44 1623 … |
History of the 01623 code
The code was 0623 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01623.
In the letter-dialling era the code had the mnemonic MA3 — on an old rotary dial, the letters MA (from Mansfield) sat on the same holes as the digits 623, so subscribers literally dialled the start of the town's name.
Top searched 01623 numbers
These are the 01623 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 |
|---|---|---|
| 01623 205171 | 16 | 9 Jul 2026 |
| 01623 761495 | 8 | 23 Jun 2026 |
| 01623 205071 | 6 | 30 Jun 2026 |
| 01623 677525 | 4 | 10 Jul 2026 |
| 01623 528710 | 4 | 30 Jun 2026 |
| 01623 766208 | 4 | 27 Jun 2026 |
| 01623 571771 | 3 | 5 Jul 2026 |
| 01623 575979 | 3 | 3 Jul 2026 |
| 01623 663454 | 3 | 2 Jul 2026 |
| 01623 316509 | 3 | 30 Jun 2026 |
| 01623 575090 | 3 | 27 Jun 2026 |
| 01623 408792 | 3 | 26 Jun 2026 |
| 01623 205003 | 3 | 25 Jun 2026 |
| 01623 409311 | 3 | 23 Jun 2026 |
| 01623 409326 | 2 | 10 Jul 2026 |
| 01623 457418 | 2 | 10 Jul 2026 |
| 01623 575800 | 2 | 9 Jul 2026 |
| 01623 513575 | 2 | 7 Jul 2026 |
| 01623 435555 | 2 | 7 Jul 2026 |
| 01623 457404 | 2 | 6 Jul 2026 |
Is a call from 01623 safe?
Most 01623 calls are ordinary local calls from Mansfield homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01623 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 01623 (Mansfield) number from outside the UK, drop the leading zero and dial +44 1623 followed by the local number.
Operators serving Mansfield
These UK communications providers have been allocated 01623 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 | 32 |
| Gamma Telecom Holdings Limited | 16 |
| Sky UK Limited | 14 |
| TalkTalk Communications Limited | 12 |
| 1XXXX | 10 |
| GCI Network Solutions Limited | 9 |
| Magrathea Telecommunications Limited | 7 |
| Virgin Media Limited | 7 |
Ofcom number ranges on 01623
Ofcom's National Numbering Plan lists 379 number blocks under 01623, of which 215 are allocated to 105 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) |
|---|---|---|
01623200… | Allocated | Dial 9 Communications Limited |
01623201… | Allocated | Sky UK Limited |
01623202… | Allocated | ICUK Computing Services Limited |
01623203… | Allocated | Colt Technology Services |
01623204… | Allocated | 24 Seven Cloud Communications Ltd |
01623205… | Allocated | DIDWW Ireland Limited |
01623206… | Allocated | BT |
01623207… | Allocated | Sky UK Limited |
01623209… | Allocated | Gamma Telecom Holdings Limited |
0162321… | Allocated | TelNG Limited |
0162322… | Allocated | Commi Holdings Limited |
01623230… | Allocated | TalkTalk Communications Limited |
Showing 12 of 215 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.
How to block and report 01623 spam calls
Block or report 01623
- You can block 01623 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 01623 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 01623 code
Where is the 01623 area code?
The 01623 area code is allocated by Ofcom to Mansfield in Nottinghamshire, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan. The surrounding dialling area also takes in Sutton in Ashfield, Kirkby in Ashfield, Mansfield Woodhouse and nearby villages.
Is 01623 always a Mansfield number?
Numbers with the 01623 prefix were originally allocated by Ofcom to Mansfield. 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 Mansfield.
How do I block 01623 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 01623 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 01623 call cost?
Calls to UK 01623 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 Mansfield — useful when a caller is nearby but outside the 01623 boundary.
Living in or moving to Mansfield?
Our free postcode reports cover house prices, crime, broadband and schools for the districts around Mansfield.
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.