TN postcode area TN postcode area The TN postcode area, also known as the Tunbridge Wells postcode area, is a group of 40 postcode districts in England, which are subdivisions of 24 post towns. These postcode districts cover an extensive area from the Greater London border at Westerham to the Sussex coast, including south Kent (including Royal Tunbridge Wells, Tonbridge, Ashford, Sevenoaks, Cranbrook, Edenbridge, New Romney, Romney Marsh and Tenterden) and northern and eastern East Sussex (including Hastings, Battle, Bexhill-on-Sea, Crowborough, Etchingham, Hartfield, Heathfield, Mayfield, Robertsbridge, Rye, St Leonards-on-Sea, Uckfield, Wadhurst and Winchelsea). Additionally, small parts of TN14 and TN16 cover the rural
Kingdom of Kent and Cambridgeshire. Archaeological evidence suggests that at some point in the sixth century, East Kent annexed West Kent. To the south lay the Weald, a dense forest of no value to the Kentish elite, leaving the fertile area west of the kingdom attractive for conquest, particularly the Darenth Valley and the dip slopes of the North Downs to the west of the Medway. Firmly in the control of an elite class, Kent is the first Anglo-Saxon kingdom to appear in the historical record in 597. The monk Bede refers to Kent as ruled by Æthelberht at this period, making him