| Unit Numbers | Current Status | Videos | Images |
|---|---|---|---|
| 231 001 | Operational | Energlyn & Churchill Park Eastbrook Cadoxton Cadoxton Dinas Powys Barry Docks | |
| 231 002 | Operational | ||
| 231 003 | Operational | ||
| 231 004 | Operational | Ninian Park Energlyn & Churchill Park | |
| 231 005 | Operational | Aber Grangetown Energlyn & Churchill Park Eastbrook Barry Island Barry Dinas Powys Dinas Powys Barry Docks | |
| 231 006 | Operational | Waun-gron Park Radyr Ninian Park Barry Island Barry Cadoxton Barry Docks | |
| 231 007 | Operational | Llanbradach Cardiff Central Grangetown Eastbrook Barry Docks | |
| 231 008 | Operational | Energlyn & Churchill Park | |
| 231 009 | Operational | ||
| 231 010 | Operational | Energlyn & Churchill Park Grangetown | |
| 231 011 | Operational | Energlyn & Churchill Park Pontlottyn Grangetown |