(23 Feb 2015, 7:27 pm)Michael wrote You have a few choices
X21/22/23 - Arriva
X7/X35 - GNE
=D
There are so many services between Sunderland and Peterlee now that I think Go North East would find it difficult to justify a 30-minute frequency on the X7. All they have to do is stand at either Park Lane or Peterlee Bus Station to see the empty X21s and realise that it would perhaps be too much of a commercial risk.