(02 Jan 2022, 6:36 pm)MurdnunoC wrote Not sure about the X22 but there was an X2 which started at Belmont and went to the Metty shortly after deregulation.
There was a version of the X23 which started at Durham and served Carrville, Leamside and Great Lumley on the way to Newcastle but I presumed that was the one you were on about.
Theres this X23 which is dated april 06 or there's the one that is now the X21.