01707 area code: Welwyn Garden City
01707 is the UK dialling code for Welwyn Garden City, in Welwyn Hatfield, England. Numbers are 01707 followed by 6 digits.
- Area
- Welwyn Garden City
- Where
- Welwyn Hatfield, England
- Written as
- 01707 xxxxxx
- Digits in a full number
- 11, including the 0
- Calling from abroad
- +44 1707 xxxxxx
- Phone companies holding ranges
- 110 (Ofcom allocation data). This doesn’t show which company a particular number is with, or who uses it.
Where 01707 is
Welwyn Garden City is a town in Welwyn Hatfield, England.
Could it be someone you know?
A number showing 01707 might look familiar. Check the full number before trusting the caller. It can help to think whether you know someone in or around Welwyn Garden City, Stevenage or Ware, have used a business there, booked or applied for something nearby, or are expecting a callback.
Codes near Welwyn Garden City
Straight-line distance from Welwyn Garden City.
Does 01707 tell me who called?
No. 01707 is assigned to Welwyn Garden City, but that doesn’t prove who is calling or where they are. Caller ID can be faked, a number keeps its code when it moves provider, and 110 phone companies hold ranges of 01707 numbers. Search the full number to see what people have reported about it and which phone company its range was given to.
Caller says they’re your bank, HMRC, the police or a courier? Hang up and call a number you trust, from your card, a letter or their website, or dial 159 for most UK banks.
Reported 01707 numbers
Nobody has reported an 01707 number to us yet. If one has been calling you, report it so the next person sees it.
Codes, code lengths and provider counts from Ofcom’s numbering data, downloaded 23 September 2026. Places from Wikidata. All UK area codes · Who called me? · Stop spam calls