(03 Jul 2022, 11:42 pm)wibblejunior wrote Seems to be mostly the same within Durham and Darlington.

1-19 - Darlington/Bishop Auckland area local services
2x - East Durham local services 
3x - unused
4x - West Durham local services
5x - services via Bowburn/Coxhoe
6x - Durham City local services
7x - ???
8x - Bishop Auckland local services
9x - Barnard Castle local services

The X12, X26/X27 and X66/X67 seem to be the main exceptions here.

Aye believe there's patterns down in Stockton aswell if I'm right between both Arriva and Stagecoach

3 - 5 - East Cleveland Services
8 - 20 - Middlesbrough / Thornaby Local Services
20's - Nunthorpe Services
30's - Billingham Services
40's - Unused
50's - Stockton Local Services
60's - Redcar Services
70's - Unused
80's - Guisborough Local Services
90's - Whitby Services

The 7, 39 and 61 are a bit of an outlier and the X66/X67 again but suppose they follow the road so makes sense. X12 is arguably a Middlesbrough service so kind of fits there.