UK Area Code Finder
Quick and easy telephone dialling code information
UK area code 01604 covers Northampton and the surrounding area.
Other areas using 01604 numbers include Blisworth, Brixworth, Chapel Brampton, Cogenhoe, Creaton, Duston, Earls Barton, East Haddon, Guilsborough, Hackleton, Hardingstone, Kingsthorpe, Kislingbury, Maidwell, Moulton, Roade, Walgrave, Weston Favell and Yardley Hastings.
Local telephone numbers are six digits long. An 01604 number should be displayed in the format: