List of London Bus routes

This article is a list of Transport for London (TfL) contracted London Bus routes in London, as well as commercial services that enter the Greater London area (except coaches).

Historic classification
Historically bus routes run by London Transport were grouped by the type of service they provided.

500-599
The 500 series numbers were originally allocated to Red Arrow services, and do not operate on Sundays. Routes 507 and 521 do not operate on Saturdays either.

600-699
Many of these routes are run for schools to reduce overcrowding on regular bus services. Their timetables are subject to short notice alteration and re-routing in accordance with school requirements.

900-999
These are Mobility Bus Routes. These routes provide a once a week return journey to a local shopping centre where there is no alternative route in the main bus network. The prevalence of low-floor buses across London has reduced somewhat the number of Mobility Bus services.

Night routes (N-prefixed)
Night bus routes are often related to the day numerical equivalent, normally running the same route but with an extension at either end of the service. This is normally to provide a night service to destinations served by tube or train during the day.

However, in a few cases, a few services have a route number that has no connection to its daytime equivalent, such as the N5, which operates in a different part of London to day route 5.

There are also 24-hour routes, which are listed in the day routes above, shaded blue.

Commercial routes within the London area
These routes are operated with a London Service Permit issued by Transport for London.