UK Area Code Finder
Quick and easy telephone dialling code information
01600 area code
Monmouth numbers
UK area code 01600 covers Monmouth in south east Wales.
Other areas using 01600 numbers include Dingestow, Symonds Yat and Trellech.
Number Format
Local telephone numbers are six digits long. An 01600 number should be displayed in the format:
(01600) xxxxxx.