Peterborough phone numbers start 01733
Peterborough is in Northamptonshire, and its landline numbers begin 01733.
An 01733 number does not prove the caller is in Peterborough
117 phone companies hold 01733 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
- 01733
- Administrative area
- Northamptonshire
- Nation
- England
- Population
- 194,000
- This town
- The place 01733 is named after
- Phone companies holding ranges
- 117
Numbers reported on 01733
Nobody has reported an 01733 number to this site yet. That does not mean an 01733 number is safe - it means no one has told us about one.
Other places on 01733
01733 covers more than Peterborough. A call showing this code could have been allocated to a range at any of these exchanges.
Codes near Peterborough
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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.