How much does it cost to call a 01707 number?

Calls to 01707 numbers are standard geographic landline calls, charged at your provider’s normal UK landline rate and usually included in inclusive minutes — the same as calling an 03 number.

I had a missed call from a 01707 number — is it a scam?

Not necessarily, but be careful: scammers spoof local codes such as 01707 so a call looks like it’s from Welwyn Garden and you’re more likely to answer. If in doubt, hang up and call the organisation back on a number you find independently.

How do I dial a Welwyn Garden number from abroad?

Drop the leading 0 and add +44. A number written as 01707 XXXXXX becomes +44 1707 XXXXXX when dialled internationally.

Can this tool tell me who owns the number?

No. It shows the area of the dialling code and the provider Ofcom allocated the number range to — not the individual or business holding a specific number, which may also have been ported to another network.

01707 Area Code – Welwyn Garden | Dialling Code, Format & Call Charges

Q: Where is the 01707 area code?

01707 is the UK geographic dialling code for Welwyn Garden. Any number written as 01707 XXXXXX is tied to the Welwyn Garden dialling-code area, though with modern VoIP a business can keep its 01707 number after moving away.

Dialling code: 01707
Area: Welwyn Garden
Number type: Geographic landline (01/02)
Local format: 01707 XXXXXX
From abroad: +44 1707 XXXXXX
Ofcom number blocks: 424
Blocks in service: 230
Range holders: 112

Where is the 01707 area code?

The 01707 dialling code is the UK geographic area code for Welwyn Garden. Because 01707 is a geographic (01/02) code, a number using it is tied to the Welwyn Garden dialling-code area — though with modern hosted telephony (VoIP) a business can keep a 01707 number after moving premises, so the code reflects the number’s designated area rather than a guaranteed physical location today.

Ofcom currently lists 424 number blocks under 01707, of which 230 are allocated to 112 communications providers.

Welwyn Garden phone number format

A Welwyn Garden number is made up of a 5-digit area code followed by a 5 or 6-digit local number. Written in full it looks like 01707 XXXXXX (the Xs stand for the local digits). Ofcom has not reserved a fictitious drama range for 01707; for on-screen examples it recommends the unused 01632 960000–01632 960999 range.

Who holds 01707 number ranges?

Ofcom allocates 01707 numbers to providers in blocks. These providers hold the largest allocations under 01707:

Range holder (allocated by Ofcom)	Number blocks	Example range
BT	33	`01707 10XXXX`
Gamma Telecom Holdings Limited	17	`01707 240XXX`
Verizon UK Limited	11	`01707 511XXX`
Sky UK Limited	10	`01707 440XXX`
Virgin Media Limited	8	`01707 610XXX`
GCI Network Solutions Limited	7	`01707 45XXXX`
Magrathea Telecommunications Limited	7	`01707 533XXX`
Colt Technology Services	6	`01707 685XXX`

…and 104 more providers hold smaller allocations in this range.

Ofcom’s data shows the provider each number range was originally allocated to — not who holds an individual number today. Numbers are frequently moved (ported) between providers, and no public database reveals the person or business behind a specific number, so treat any service that claims to with suspicion.

01707 number ranges

Browse the allocated 01707 ranges by their first local digit — each guide lists the providers holding that slice of Welwyn Garden’s numbers:

01707 1XXXXX · 1 ranges 01707 2XXXXX · 19 ranges 01707 3XXXXX · 10 ranges 01707 4XXXXX · 33 ranges 01707 5XXXXX · 55 ranges 01707 6XXXXX · 20 ranges 01707 7XXXXX · 21 ranges 01707 8XXXXX · 18 ranges 01707 9XXXXX · 53 ranges

Call charges for 01707 numbers

Calls to 01707 geographic numbers are charged at your phone provider’s standard UK landline rate and are normally included in inclusive call minutes. UK-wide 03 numbers are guaranteed by Ofcom to cost the same as 01/02 calls, while 084, 087 and 09 numbers cost considerably more — always check the prefix before you dial.

Spotting spoofed 01707 scam calls

Fraudsters frequently spoof local dialling codes, faking the caller ID so a scam call appears to come from a Welwyn Garden (01707) number you might trust. Remember:

A familiar 01707 area code is not proof the caller is local or genuine — caller ID can be faked.
Banks, HMRC and the police will never ask you to move money or share passwords or one-time codes over the phone.
If a call feels off, hang up, wait a moment, and call the organisation back on a number from their official website or your statement.
Report nuisance calls to the ICO and forward scam texts to 7726 (free).

Other dialling codes in this range

Numerically adjacent UK dialling codes:

01704 Southport Area code guide 01706 Rochdale Area code guide 01708 Romford Area code guide 01709 Rotherham Area code guide

Browse all UK area-code guides ›

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01707 area code – Welwyn Garden