Ashington, Blyth and Jesmond appear to be running dupes on selected routes today.

Ashington on at least the X21/22 and 35 cycle - potentially also on the 57 though it may just be a vehicle swap in the instance of 7529 appearing after the X20 peak.

Blyth on at least the 308, possibly also on the X7/8.

Jesmond on at least the 44/45/47 - possibly also the 553.

Bit all over the place in terms of tracking on Bustimes - some buses are quite happy to track in duplicate it seems, whereas others are tracking singularly and missing out alternate journeys (I assume whichever bus logs onto the journey first is tracked in that instance).