London Buses route N93

London Buses route N23 has the origins of Aldwych - Trafalgar Square - Oxford Circus - Paddington - Westbourne Grove - East Acton - Ealing - Greenford - Northolt before being split up in 2003 and renumbered 23 as a 24-hour service in 2004.

It was carved from N50 that was withdrawn in 1993.