| X1 | Adventure Travel | Brynmawr ↔ Cwmbran | Timetable |
| X1 | Arriva UK Bus | Luton Airport ↔ Central Milton Keyne | Timetable |
| X1 | Bayliss Executive Travel | Walmer ↔ Sandwich | Timetable |
| X1 | Ensign Bus | Southend-on-Sea ↔ Lakeside | Timetable |
| X1 | First Bus | Flowerdown ↔ Bristol | Timetable |
| X1 | Phil Anslow | Brynmawr ↔ Cwmbran | Timetable |
| X1 | Stagecoach | Chester ↔ Liverpool | Timetable |
| X1 | Stagecoach | St Margarets Hope ↔ Skara Brae | Timetable |
| X1 | Transdev | Holmfirth ↔ Wakefield City Centre | Timetable |
| X10 | Arriva UK Bus | Wakefield City Centre ↔ Woodhouse | Timetable |
| X10 | Arriva UK Bus | Shrewsbury ↔ Madeley | Timetable |
| X10 | Arriva UK Bus | Blyth ↔ Newcastle upon Tyne | Timetable |
| X10 | Faresaver Buses | Chippenham ↔ Cherhill | Timetable |
| X10 | Midland Bluebird | Stirling (circular) | Timetable |
| X10 | Stagecoach | Kirkwall ↔ Stromness | Timetable |
| X10 | Stagecoach | Northampton ↔ Kettering | Timetable |
| X10 | The Big Lemon CIC | Southmead ↔ Yatton | Timetable |
| X10 | Uno | Hatfield ↔ Luton Town Centre | Timetable |
| X10A | Midland Bluebird | Stirling (circular) | Timetable |
| X11 | Arriva UK Bus | Blyth ↔ Newcastle upon Tyne | Timetable |
| X11 | Arriva UK Bus | Shrewsbury ↔ Telford Town Centre | Timetable |
| X11 | Celtic Travel | Builth Wells ↔ Ludlow | Timetable |
| X11 | Celtic Travel | Builth Wells (circular) | Timetable |
| X11 | First Bus | Uphill ↔ Nailsea | Timetable |
| X11 | Prentice Coaches | Haddington ↔ Edinburgh Royal Infirmary | Timetable |
| X12 | Arriva UK Bus | Middlesbrough ↔ Newcastle upon Tyne | Timetable |
| X12 | Arriva UK Bus | Rhyl ↔ Llandudno | Timetable |
| X12 | Arriva UK Bus | Shrewsbury ↔ Newport | Timetable |
| X12 | Celtic Travel | Builth Wells ↔ Abergavenny | Timetable |
| X12 | Harrogate Coach Travel Ltd | Harrogate (circular) | Timetable |
| X12 | Midland Classic | Burton upon Trent ↔ Lichfield City Centr | Timetable |
| X13 | First Bus | | Timetable |
| X13 | National Express West Midlands | Birmingham ↔ Chelmsley Wood | Timetable |
| X13 | Stagecoach | Cambridge ↔ Kedington | Timetable |
| X14 | Arriva UK Bus | Thropton ↔ Newcastle upon Tyne | Timetable |
| X14 | Celtic Travel | Builth Wells ↔ Carmarthen | Timetable |
| X14 | First Bus | | Timetable |
| X14 | First Bus | Weston-super-Mare (circular) | Timetable |
| X14 | First Bus | Bristol ↔ Weston-super-Mare | Timetable |
| X15 | Arriva UK Bus | Central Milton Keyne ↔ Aylesbury | Timetable |
| X15 | Arriva UK Bus | Newcastle upon Tyne ↔ Berwick-upon-Tweed | Timetable |
| X15 | Celtic Travel | Hereford ↔ Builth Wells | Timetable |
| X15 | Celtic Travel | Builth Wells ↔ Hereford | Timetable |
| X15 | Go-Ahead | York ↔ Woodthorpe | Timetable |
| X15 | Go-Ahead | Castleside ↔ Durham | Timetable |
| X15 | Sargeants Bros. Coaches Ltd | Hereford ↔ Brecon | Timetable |
| X16 | Arriva UK Bus | Newcastle upon Tyne ↔ Kelso | Timetable |
| X16 | Arriva UK Bus | Coalville ↔ Loughborough | Timetable |
| X16 | Stagecoach | Leek Wootton ↔ Stratford-upon-Avon | Timetable |
| X16 | Stephensons of Essex | Newmarket ↔ Bury St Edmunds | Timetable |
| X17 | Stagecoach | Matlock ↔ Sheffield Centre | Timetable |
| X17 | Stagecoach | Sheffield Centre ↔ Barnsley Town Centre | Timetable |
| X17 | Stagecoach | Coventry ↔ Warwick | Timetable |
| X18 | Arriva UK Bus | Newcastle upon Tyne ↔ Berwick-upon-Tweed | Timetable |
| X18 | Lothian Country | Edinburgh ↔ Whitburn | Timetable |
| X18 | Stagecoach | Aberdeen ↔ Alford | Timetable |
| X18 | Stagecoach | Coventry ↔ Stratford-upon-Avon | Timetable |
| X18A | Stagecoach | Coventry ↔ Gaydon | Timetable |
| X19 | Lothian Country | Edinburgh ↔ Winchburgh | Timetable |
| X19 | Stagecoach | Govan ↔ Easterhouse | Timetable |
| X1a | First Bus | Flowerdown ↔ Bristol | Timetable |