Around 50 TfL daytime bus routes (such as 25, 38, 73, 149, 205) keep their normal number and run a continuous 24-hour service — distinct from the N-prefix night buses. Same £1.75 fare, same Hopper transfers, lower frequency between midnight and 05:00.
London's 24-hour bus routes are regular daytime services that simply don't stop at night. They retain the same route number, the same destination blinds, and the same operator — the only thing that changes is the frequency drops to every 15–30 minutes between roughly 00:30 and 05:00.
They complement the dedicated N-prefix night buses and the Friday/Saturday Night Tube, forming a comprehensive overnight network.
via Trafalgar Square, Oxford Circus, St John's Wood
via Westminster, Hyde Park Corner, Notting Hill
via Bishopsgate, Shoreditch, Stoke Newington, Tottenham
via Marylebone, Euston, Angel, Mile End
via Victoria, Trafalgar Square, Camden Town
via Holborn, Bank, Mile End, Stratford
via Tottenham Court Road, Camden, Manor House
via Peckham, Vauxhall, Victoria, Paddington
via Piccadilly, Bloomsbury, Islington, Hackney
via Bank, Angel, Highgate
via Oxford Circus, Westminster, Elephant & Castle
via Oxford Circus, Euston, Angel
via Shepherd's Bush, Notting Hill, Marble Arch
via Oxford Circus, Marble Arch, Maida Vale
A 24-hour route keeps its daytime number all night (e.g. route 25 runs as '25' at 03:00). N-prefix buses are dedicated overnight services that don't run during the day.
No — £1.75 flat fare, £5.25 daily cap and Hopper transfers apply at every hour.
Typically every 15–30 minutes between midnight and 05:00, depending on the route. Check TfL Go for live arrivals.