Haverfordwest phone numbers start 01437
Haverfordwest is in Pembrokeshire, and its landline numbers begin 01437.
An 01437 number does not prove the caller is in Haverfordwest
87 phone companies hold 01437 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
- 01437
- Administrative area
- Pembrokeshire
- Nation
- Wales
- Population
- 12,107
- This town
- The place 01437 is named after
- Phone companies holding ranges
- 87
Numbers reported on 01437
Nobody has reported an 01437 number to this site yet. That does not mean an 01437 number is safe - it means no one has told us about one.
Other places on 01437
01437 covers more than Haverfordwest. A call showing this code could have been allocated to a range at any of these exchanges.
Codes near Haverfordwest
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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.