The 01604 phone code covers the Northampton area.
Phone numbers using this code are in the form of (01604) ### ###.
International callers should call +44 1604 ######.
The centre of the phone code area has a latitude of 52.240477 and longitude of -0.902656.
The nearest other phone codes are: Northampton (01604) Wellingborough (01933) Daventry (01327) Kettering (01536) Milton Keynes (01908)