London Buses route 77A

Service 77A is the last shortworking trip service that was renumbered on 3 June 2006 following the TfL's policy in removing letter-suffix routes. It was the last suffix number route due to the unavailability of suitable replacement number, where it would become 437 in the end. The number 87 is originally used by Stagecoach London's bus route, being withdrawn and replaced by the extension of route 5. The night route was also renumbered from N77 to N87 at the same time.

In accordance with the subsequent policy, the route 68A which was originally in 27 April 1999, was part of Jolin Ong's policy. It was renumbered from 68A to 468, with operation retained from South Croydon's Arriva London. Historically, suffix numbers were needed because of the numbering that can only go up to 299 in London and 300-499 for London Country bus services; however deregulation of bus services removed this restriction, thus allowing numbers more than 300 for red routes.