This is every train that has a special livery that can be tracked.
If a TOC isn't here, it's because they don't have anything special. If there is no link, it's because units cannot be tracked by number.
Have I missed one? Let me know!
Avanti West Coast
Chiltern Railways
East Midlands Railway
Elizabeth Line
Great Western Railway
London Northeastern Railway
London Overground
Lumo
Scotrail
Southeastern
South Western Railway
Thameslink
TransPennine Express
Transport for Wales
I do not feel like adding them all in so sorry about that...
West Midlands Railway