01704 Area Code
The dialling code for Southport: what 01704 numbers are, who holds them, and what to do about a call you don't recognise.
What Is the 01704 Area Code?
Southport landline number. 01704 is the dialling code for Southport. Numbers starting 01704 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Southport.
Who was the range allocated to?
Ofcom has allocated 01704 numbers to 98 providers. The largest holders are BT, Vodafone Ltd (C&W) and GCI Network Solutions 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 01704 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 01704 Range
| Number type | Southport landline number |
|---|---|
| Area | Southport |
| Number format | 01704 XXXXXX |
| Allocated by Ofcom | 53% of the range, to 98 providers |
| First allocation on record | 15 July 1994 |
| Most recent allocation | 17 March 2026 |
Largest holders of 01704 numbers
| Provider (as allocated by Ofcom) | Share of range | First allocated |
|---|---|---|
| BT | 18% | 15 July 1994 |
| Vodafone Ltd (C&W) | 4% | 9 September 2013 |
| GCI Network Solutions Limited | 2% | 26 April 2017 |
| Virgin Media Limited | 2% | 16 March 2016 |
| Sky UK Limited | 1% | 12 June 2013 |
| Gamma Telecom Holdings Limited | 1% | 11 March 2005 |
92 more providers hold smaller blocks.
Allocation data: Ofcom numbering data, as published 28 October 2026.
Get Your Own 01704 Number
Want a Southport 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 01704 Numbers
Where is the 01704 area code?
01704 is the dialling code for Southport. Numbers starting 01704 are landline numbers for that area. Internet phone services can use them too, so a caller is not necessarily in Southport.
Is 01704 a mobile number?
No. 01704 is a landline (geographic) area code for Southport. UK mobile numbers start with 07.
Who does the 01704 range belong to?
Ofcom has allocated 01704 numbers to 98 providers. The largest holders are BT, Vodafone Ltd (C&W) and GCI Network Solutions 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 01704 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 01704 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.