Sleaford phone numbers start 01529
Sleaford is in North Kesteven, and its landline numbers begin 01529.
An 01529 number does not prove the caller is in Sleaford
86 phone companies hold 01529 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
- 01529
- Administrative area
- North Kesteven
- County
- Lincolnshire
- Nation
- England
- Population
- 19,815
- This town
- The place 01529 is named after
- Phone companies holding ranges
- 86
Numbers reported on 01529
Nobody has reported an 01529 number to this site yet. That does not mean an 01529 number is safe - it means no one has told us about one.
Other places on 01529
01529 covers more than Sleaford. A call showing this code could have been allocated to a range at any of these exchanges.
Codes near Sleaford
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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.