01423 Area Code
The dialling code for Boroughbridge: what 01423 numbers are, who holds them, and what to do about a call you don't recognise.
What Is the 01423 Area Code?
Boroughbridge landline number. 01423 is the dialling code for Boroughbridge. Numbers starting 01423 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Boroughbridge.
Who was the range allocated to?
Ofcom has allocated 01423 numbers to 105 providers. The largest holders are BT, Vodafone Ltd (C&W) and Gamma Telecom Holdings Limited.
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 01423 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 01423 Range
| Number type | Boroughbridge landline number |
|---|---|
| Area | Boroughbridge |
| Number format | 01423 XXXXXX |
| Allocated by Ofcom | 55% of the range, to 105 providers |
| First allocation on record | 15 July 1994 |
| Most recent allocation | 17 March 2026 |
Largest holders of 01423 numbers
| Provider (as allocated by Ofcom) | Share of range | First allocated |
|---|---|---|
| BT | 25% | 15 July 1994 |
| Vodafone Ltd (C&W) | 4% | 2 September 2013 |
| Gamma Telecom Holdings Limited | 2% | 9 October 2008 |
| Virgin Media Limited | 2% | 16 May 1995 |
| GCI Network Solutions Limited | 2% | 19 April 2017 |
| Magrathea Telecommunications Limited | 2% | 19 November 2004 |
99 more providers hold smaller blocks.
Allocation data: Ofcom numbering data, as published 28 October 2026.
Get Your Own 01423 Number
Want a Boroughbridge 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 01423 Numbers
Where is the 01423 area code?
01423 is the dialling code for Boroughbridge. Numbers starting 01423 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Boroughbridge.
Is 01423 a mobile number?
No. 01423 is a landline (geographic) area code for Boroughbridge. UK mobile numbers start with 07.
Who does the 01423 range belong to?
Ofcom has allocated 01423 numbers to 105 providers. The largest holders are BT, Vodafone Ltd (C&W) and Gamma Telecom Holdings Limited. 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 01423 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 01423 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.