(05 Aug 2015, 7:30 pm)R852 PRG wrote Seeing as there is an X78 that serves Derwentside College, I guess the X72 could be another peak-time service that serves a similar route.
We'll have to wait and find out, annoyingly.
Seems bizarre that the service hasn't had to be registered as new service before as it certainly doesn't exist now (unless it does as a different number?)