London Buses route N551

London Buses route N551 is a Transport for London contracted night bus route in London, United Kingdom. The service is currently contracted to Go-Ahead London.

History
Route N551 was introduced on 30 October 2008 alongside route N550 replacing route N50.

Current route
Gallions Reach Retail Park · Gallions Reach Station · Beckton Bus Station for Beckton Station · Prince Regent Station · Custom House Station · Keir Hardie Estate · Canning Town Station · Poplar (All Saints Station) · Limehouse Station  · Shadwell  · Aldgate Station · Bank · Mansion House Station · St Paul's · City Thameslink Station · Aldwych · Charing Cross Station  · Trafalgar Square Cockspur Street