Llandeilo phone numbers start 01558
Llandeilo is in Carmarthenshire, and its landline numbers begin 01558.
An 01558 number does not prove the caller is in Llandeilo
79 phone companies hold 01558 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
- 01558
- Administrative area
- Carmarthenshire
- Nation
- Wales
- Population
- 1,787
- This town
- The place 01558 is named after
- Phone companies holding ranges
- 79
Numbers reported on 01558
Nobody has reported an 01558 number to this site yet. That does not mean an 01558 number is safe - it means no one has told us about one.
Codes near Llandeilo
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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.