01407 Area Code
The dialling code for Holyhead: what 01407 numbers are, who holds them, and what to do about a call you don't recognise.
What Is the 01407 Area Code?
Holyhead landline number. 01407 is the dialling code for Holyhead. Numbers starting 01407 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Holyhead.
Who was the range allocated to?
Ofcom has allocated 01407 numbers to 84 providers. The largest holders are BT, Served Up Limited and Digital Space Group 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 01407 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 01407 Range
| Number type | Holyhead landline number |
|---|---|
| Area | Holyhead |
| Number format | 01407 XXXXXX |
| Allocated by Ofcom | 44% of the range, to 84 providers |
| First allocation on record | 15 July 1994 |
| Most recent allocation | 26 January 2026 |
Largest holders of 01407 numbers
| Provider (as allocated by Ofcom) | Share of range | First allocated |
|---|---|---|
| BT | 10% | 15 July 1994 |
| Served Up Limited | 2% | 19 May 2008 |
| Digital Space Group Limited | 1% | 30 November 2007 |
| GCI Network Solutions Limited | 1% | 25 April 2017 |
| (Aq) Limited | 1% | 19 October 2011 |
| AQL Wholesale Ltd | 1% | 26 June 2006 |
78 more providers hold smaller blocks.
Allocation data: Ofcom numbering data, as published 28 October 2026.
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Common Questions About 01407 Numbers
Where is the 01407 area code?
01407 is the dialling code for Holyhead. Numbers starting 01407 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Holyhead.
Is 01407 a mobile number?
No. 01407 is a landline (geographic) area code for Holyhead. UK mobile numbers start with 07.
Who does the 01407 range belong to?
Ofcom has allocated 01407 numbers to 84 providers. The largest holders are BT, Served Up Limited and Digital Space Group 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 01407 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 01407 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.