Alton phone numbers start 01420
Alton is in East Hampshire, and its landline numbers begin 01420.
There are also 2 smaller places called Alton: Alton, Staffordshire Moorlands (01538), Alton, Kennet (01672).
An 01420 number does not prove the caller is in Alton
94 phone companies hold 01420 ranges, a number keeps its code when it moves provider, and caller ID can be faked outright. The code tells you which exchange the range was allocated to - nothing about who dialled.
- Area code
- 01420
- Administrative area
- East Hampshire
- County
- Hampshire
- Nation
- England
- Population
- 19,429
- This town
- The place 01420 is named after
- Phone companies holding ranges
- 94
Numbers reported on 01420
Nobody has reported an 01420 number to this site yet. That does not mean an 01420 number is safe - it means no one has told us about one.
Other places on 01420
01420 covers more than Alton. A call showing this code could have been allocated to a range at any of these exchanges.
Codes near Alton
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Buy us a coffeeArea code and range data from Ofcom's published allocations, downloaded 1 October 2026. Town locations, populations and administrative areas from Wikidata (CC0), joined 1 October 2026 - towns within 40 km of the exchange. Reports are from visitors to this site and are unchecked. Browse every town A-Z.