Transport in the Isle of Man operational on 1 May 2007. The register is open to all non-commercial aircraft and is intended to be of particular interest to professionally flown corporate operators. As of November 2012 a total of 537 corporate and private aircraft had been registered. There are ports at Castletown, Douglas, Peel, Port St Mary and Ramsey. Douglas is served by frequent ferries to/from England and occasional ferries to/from Ireland; the sole operator is the Isle of Man Steam Packet Company, with exclusive use of the Isle of Man Sea Terminal and the Douglas port linkspans under the conditions of the user agreement with
Castletown, Isle of Man of the town and island are illustrated in four Manx National Heritage sites in the centre of Castletown: Castle Rushen, the Nautical Museum (in the secret passage-filled home of inventor, politician, banker and probable smuggler George Quayle), the Old Grammar School (originally a church from AD 1200) and the Old House of Keys. Fishing boats still go out to fish from the harbour. Commercial traffic to the port ended in the 1970s, although there has been an ongoing expansion of financial and industrial businesses in the area. The first telephones appeared in Castletown in 1901. Castletown is, along with Douglas,