01420 area code: Alton
01420 is the UK dialling code for Alton, in East Hampshire, England. Numbers are 01420 followed by 5 or 6 digits.
- Area
- Alton
- Where
- East Hampshire, England
- Written as
- 01420 xxxxxx
- Digits in a full number
- 10 or 11, including the 0
- Calling from abroad
- +44 1420 xxxxxx
- Phone companies holding ranges
- 94 (Ofcom allocation data). This doesn’t show which company a particular number is with, or who uses it.
Where 01420 is
Alton is a town in East Hampshire, England.
Could it be someone you know?
A number showing 01420 might look familiar. Check the full number before trusting the caller. It can help to think whether you know someone in or around Alton, Basingstoke or Petersfield, have used a business there, booked or applied for something nearby, or are expecting a callback.
Codes near Alton
Straight-line distance from Alton.
Does 01420 tell me who called?
No. 01420 is assigned to Alton, 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 94 phone companies hold ranges of 01420 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 01420 numbers
Nobody has reported an 01420 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