UK Area Code Finder
Quick and easy telephone dialling code information
01389 area code
Dumbarton numbers
UK area code 01389 covers Dumbarton in Strathclyde, Scotland.
Other areas using 01389 numbers include Alexandria, Arden, Cardross, Duntocher and Gartocharn.
Number Format
Local telephone numbers are six digits long. An 01389 number should be displayed in the format:
(01389) xxxxxx.