Wallingford phone numbers start 01491
Wallingford is in South Oxfordshire, and its landline numbers begin 01491 - the code named after Henley-on-Thames, about 11 miles away.
An 01491 number does not prove the caller is in Wallingford
95 phone companies hold 01491 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
- 01491
- Administrative area
- South Oxfordshire
- Nation
- England
- Population
- 8,351
- The code is named after
- Henley-on-Thames
- Distance from the exchange
- about 11 miles
- Phone companies holding ranges
- 95
Numbers reported on 01491
Nobody has reported an 01491 number to this site yet. That does not mean an 01491 number is safe - it means no one has told us about one.
Other places on 01491
01491 covers more than Henley-on-Thames. A call showing this code could have been allocated to a range at any of these exchanges.
Codes near Wallingford
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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.