01366 area code: Downham Market
01366 is the UK dialling code for Downham Market, in King's Lynn and West Norfolk, England. Numbers are 01366 followed by 6 digits.
- Area
- Downham Market
- Where
- King's Lynn and West Norfolk, England
- Written as
- 01366 xxxxxx
- Digits in a full number
- 11, including the 0
- Calling from abroad
- +44 1366 xxxxxx
- Phone companies holding ranges
- 88 (Ofcom allocation data). This doesn’t show which company a particular number is with, or who uses it.
Where 01366 is
Downham Market is a town in King's Lynn and West Norfolk, England.
Could it be someone you know?
A number showing 01366 might look familiar. Check the full number before trusting the caller. It can help to think whether you know someone in or around Downham Market, Wisbech or Kings Lynn, have used a business there, booked or applied for something nearby, or are expecting a callback.
Codes near Downham Market
Straight-line distance from Downham Market.
Does 01366 tell me who called?
No. 01366 is assigned to Downham Market, 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 88 phone companies hold ranges of 01366 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 01366 numbers
Nobody has reported an 01366 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