The NN postcode area, also known as the Northampton postcode area,Royal Mail, Address Management Guide, (2004) is a group of nineteen postcode districts in England, within eight post towns. These cover most of Northamptonshire (including Northampton, Kettering, Wellingborough, Corby, Brackley, Daventry, Rushden and Towcester), plus very small parts of Bedfordshire, Buckinghamshire, Leicestershire, Oxfordshire and Warwickshire.
