| X4 | Arriva UK Bus | Chester ↔ Mold | Timetable |
| X4 | Arriva UK Bus | Windmill Hill ↔ Liverpool | Timetable |
| X4 | Arriva UK Bus | Aylesbury ↔ Heath and Reach | Timetable |
| X4 | Arriva UK Bus | Chester ↔ Mold | Timetable |
| X4 | Arriva UK Bus | Whitby ↔ Loftus | Timetable |
| X4 | David Goodfellow Travel | Doncaster Centre ↔ Auckley | Timetable |
| X4 | E Stott & Sons Ltd | Netherthong ↔ Huddersfield Town Centre | Timetable |
| X4 | East Coast Buses | Tranent ↔ Haymarket | Timetable |
| X4 | Go-Ahead | Salisbury ↔ Pewsey | Timetable |
| X4 | Harrogate Coach Travel Ltd | Harrogate ↔ Woodlands | Timetable |
| x4 | Hornsby Travel Ltd | Scunthorpe ↔ Brigg | Timetable |
| X4 | Stagecoach | Oxford City Centre ↔ Banbury Town Centre | Timetable |
| X4 | Stagecoach | Lancaster City Centre ↔ Lancaster University | Timetable |
| X40 | Go-Ahead | Oxford City Centre ↔ Reading Town Centre | Timetable |
| X40 | Lothian Country | Edinburgh Royal Infirmary ↔ Howden | Timetable |
| X41 | Transdev | Accrington ↔ Shudehill | Timetable |
| X43 | Arriva UK Bus | Bangor ↔ Talwrn | Timetable |
| X43 | Northstar Constellation Limited (formerly RMC1510 Limited) | Metrocentre ↔ Stanley | Timetable |
| X43 | Transdev | Nelson ↔ Shudehill | Timetable |
| X43 | Transport Made Simple | Bury St Edmunds ↔ Colchester City Cent | Timetable |
| X43 | Williams Coaches | Brecon ↔ Abergavenny | Timetable |
| X44 | Sargeants Bros. Coaches Ltd | Hereford ↔ Brecon | Timetable |
| X44 | Sargeants Bros. Coaches Ltd | Hereford ↔ Brecon | Timetable |
| X442 | Carlone Buses | Heathrow Airport Terminal 5 ↔ Staines | Timetable |
| X45 | Arriva UK Bus | Leicester ↔ Magna Park | Timetable |
| X45 | Go-Ahead | Consett ↔ Newcastle upon Tyne | Timetable |
| X45 | Go-Ahead | Market Weighton ↔ York | Timetable |
| X46 | Arriva UK Bus | Stanhope ↔ Framwellgate Moor | Timetable |
| X46 | Go-Ahead | Swindon ↔ Hungerford | Timetable |
| X46 | Go-Ahead | Hull ↔ York | Timetable |
| X46 | Pats Coaches | Wrexham ↔ Whitchurch | Timetable |
| X46 | Pats Coaches | Wrexham ↔ Eglwys Cross | Timetable |
| X47 | Celtic Travel | Llandrindod Wells ↔ Llangurig | Timetable |
| X47 | Frome Bus | Frome ↔ Trowbridge | Timetable |
| X47 | Go-Ahead | Hull ↔ York | Timetable |
| X47 | Lothian Buses | East Craigs ↔ Edinburgh | Timetable |
| X47 | Shiel Buses | Upper Achintore ↔ Corpach | Timetable |
| X48 | Celtic Travel | Knighton ↔ Builth Wells | Timetable |
| X49 | Faresaver Buses | Devizes ↔ Trowbridge | Timetable |
| X49 | South Pennine Community | Huddersfield Town Centre ↔ Brighouse | Timetable |