UK Area Code Finder
Quick and easy telephone dialling code information
01558 area code
Llandeilo numbers
UK area code 01558 covers Llandeilo in the county of Carmarthenshire.
Other areas using 01558 numbers include Dryslwyn, Pumpsaint and Talley.
Number Format
Local telephone numbers are six digits long. An 01558 number should be displayed in the format:
(01558) xxxxxx.