Register data is published weekly by DVSA. Latest snapshot: 6 September 2026.
Registered local bus service
X4
Merthyr Tydfil to Cardiff
Run by Stagecoach South Wales on licence PG0006630.
Kind of service
Normal Stopping
Public subsidy
None recorded
Running since
1 April 1993
Current version from
29 March 2026
Where it runs
Registered with 3 transport authorities. A service has to be registered with every authority whose area it runs through.
Other routes run by Stagecoach South Wales
- A
Caerphilly to Graig y Rhacca
Normal StoppingPart subsidised
- B
Cardiff to Senghenydd
Normal StoppingPart subsidised
- C
Caerphilly to Penyrheol
Normal StoppingPart subsidised
- C16
Caerphilly to Nelson
Normal StoppingSubsidised
- C18
Bargoed to Gilfach
Normal StoppingPart subsidised
- C9
Bargoed to Caerphilly
Normal StoppingPart subsidised
Other operators in Cardiff Council
- C1
Culverhouse Cross, Cardiff Tesco to Pontprennau, Cardiff ASDA
Via Cardiff City Centre
Adventure TravelNormal Stopping
- Cardiff City Tour
North Road, Cardiff to Cargo Road, Cardiff
Via Cardiff City Centre, Bute Town and Cardiff Bay
London Bus 4 Hire Ltd.Excursion or Tour
- H59
Pentwyn Park & Ride to Pentwyn Park & Ride
Via A48
Cardiff BusNormal StoppingPart subsidised
- M1
Cardiff, Met Cyncoed to Cardiff, Met Llandaff
Via Roath, Cathays
Cardiff BusSchool or Works
- R006
Heol Llanishen Fach/Heol Uchaf to The Bishop of Llandaff C/W High School
Via Rhiwbina Hill, Maes Y Croft, Heol Isaf
Creigiau Travel LtdSchool or Works
- R009
ELY CAERAU LANE/HEOL TRELAI to THE BISHOP OF LLANDAFF C W SCHOOL
Via The Sanctuary, Glanely High, Green Farm Rd
Wheadon's Group Travel LimitedSchool or Works
What this record is
Registration PG0006630/382 is the permission to run this route, not a timetable. It records the start, the finish, the places between and who may run it. For departure times, ask the operator or the transport authority. To see what the licence behind it authorises overall, open the operator profile.