01720 area code: Isles of Scilly
01720 is the UK dialling code for Isles of Scilly, in Cornwall, England. Numbers are 01720 followed by 6 digits.
- Area
- Isles of Scilly
- Where
- Cornwall, England
- Written as
- 01720 xxxxxx
- Digits in a full number
- 11, including the 0
- Calling from abroad
- +44 1720 xxxxxx
- Phone companies holding ranges
- 77 (Ofcom allocation data). This doesn’t show which company a particular number is with, or who uses it.
Where 01720 is
Isles of Scilly is in Cornwall, England.
Could it be someone you know?
A number showing 01720 might look familiar. Check the full number before trusting the caller. It can help to think whether you know someone in or around Isles of Scilly, Penzance or Redruth, have used a business there, booked or applied for something nearby, or are expecting a callback.
Codes near Isles of Scilly
Straight-line distance from Isles of Scilly.
Does 01720 tell me who called?
No. 01720 is assigned to Isles of Scilly, 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 77 phone companies hold ranges of 01720 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 01720 numbers
Nobody has reported an 01720 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