UK Area Code Finder
Quick and easy telephone dialling code information
UK area code 01603 covers Norwich in the county of Norfolk.
Other areas using 01603 numbers include Barnham Broom, Brundall, Buxton, Coltishall, Costessey, Drayton, Hethersett, Hevingham, Honingham, Reepham, St Faith, Salhouse, South Walsham and Wroxham.
Local telephone numbers are six digits long. An 01603 number should be displayed in the format: