Geth and I saw this one while spectating at the Great Manchester 10k.
(Coordinates 53°47’75.1”N, 2°25’01.3”W.)
As we were across the road (and the finish area was in the way) I couldn’t ascertain if this one is still in use. It seems to be a bit of a graffiti showcase at the moment, which is standard for city centre phone boxes!