UK Area Code Finder
Quick and easy telephone dialling code information
UK area code 01603 covers Norwich in Norfolk, and the surrounding area.
Locations using 01603 numbers include:
01603 numbers are normal, landline numbers charged at standard rates.
Local telephone numbers in the Norwich area are six digits long. An 01603 number should be displayed in the format: 01603 xxxxxx or (01603) xxxxxx
For international callers, use: +44 1603 xxxxxx