01623 Area Code
The dialling code for Mansfield: what 01623 numbers are, who holds them, and what to do about a call you don't recognise.
What Is the 01623 Area Code?
Mansfield landline number. 01623 is the dialling code for Mansfield. Numbers starting 01623 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Mansfield.
Who was the range allocated to?
Ofcom has allocated 01623 numbers to 104 providers. The largest holders are BT, Virgin Media Limited and Vodafone Ltd (C&W).
Numbers can be moved (ported) between networks, so the network a caller uses today may not be the one Ofcom allocated the block to. The allocation does not identify the person or business using a number.
Had a call from a 01623 number you don't recognise?
We can't tell you who called: an area code only shows the type of number and the provider Ofcom allocated the range to.
- Don't call back in a hurry, even if a message says it's urgent. Never give bank details or security codes on a call you didn't expect.
- Block the number from your phone's recent calls list.
- Forward scam texts free to 7726. Report unwanted marketing calls to the ICO, and see Ofcom's advice on scam calls.
- Register your number with the Telephone Preference Service to opt out of sales calls.
About the 01623 Range
| Number type | Mansfield landline number |
|---|---|
| Area | Mansfield |
| Number format | 01623 XXXXXX |
| Allocated by Ofcom | 63% of the range, to 104 providers |
| First allocation on record | 15 July 1994 |
| Most recent allocation | 22 October 2026 |
Largest holders of 01623 numbers
| Provider (as allocated by Ofcom) | Share of range | First allocated |
|---|---|---|
| BT | 27% | 15 July 1994 |
| Virgin Media Limited | 7% | 15 July 1994 |
| Vodafone Ltd (C&W) | 4% | 6 September 2013 |
| Sky UK Limited | 2% | 20 June 2013 |
| GCI Network Solutions Limited | 2% | 2 May 2017 |
| Gamma Telecom Holdings Limited | 2% | 15 November 2012 |
98 more providers hold smaller blocks.
Allocation data: Ofcom numbering data, as published 28 October 2026.
Get Your Own 01623 Number
Want a Mansfield number for your business? DigitalNumbers gives you one that rings on your existing mobile, with its own app, voicemail and WhatsApp Business support. 100+ numbers currently available.
- Make and receive calls using our included app
- Forwards calls to your existing mobile
- Works with WhatsApp Business
- Includes professional voicemail
- Lets you set working hours
Common Questions About 01623 Numbers
Where is the 01623 area code?
01623 is the dialling code for Mansfield. Numbers starting 01623 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Mansfield.
Is 01623 a mobile number?
No. 01623 is a landline (geographic) area code for Mansfield. UK mobile numbers start with 07.
Who does the 01623 range belong to?
Ofcom has allocated 01623 numbers to 104 providers. The largest holders are BT, Virgin Media Limited and Vodafone Ltd (C&W). Numbers can be moved (ported) between networks, so the network a caller uses today may not be the one Ofcom allocated the block to. The allocation does not identify the person or business using a number.
Who called me from a 01623 number?
We can't tell you who called. An area code only shows the type of number and which provider Ofcom allocated the range to. If you don't recognise a 01623 number, don't call back in a hurry, and never give out bank details or security codes on a call you didn't expect.
Block the number from your phone's recent calls list. Forward scam texts free to 7726, report unwanted marketing calls to the ICO, and see Ofcom's advice on scam calls.