(18 Jan 2014, 5:56 pm)tyresmoke wrote Certainly at Stockton the journey numbers are 1001, 1002, 1003 etc and not the actual departure times (which is what Stagecoach use). Secured stuff tends to be in 9000 up over.

Ive asked the question and can confirm that journey numbers are set up as the following;

Within each service, at each depot, the following apply
Monday to Friday journeys take numbers 1-999
Saturday journeys take 1001-1999
Sunday journeys take 2001 - 2999
Bank Holiday journeys take 3001-3999
4000+ journey numbers are generally used for Xmas and New Year service patterns.

The numbers are directional too. Odd numbers are outbound and even numbers are inbound. (Outbound is usually the first direction shown in the timetable).

So as an example, journey 1023 on Service 308 is a Saturday journey, outbound (probably towards Blyth) and will be the 12th journey of the day in that direction. Journey 2010 will be an inbound Sunday journey, 5th one of the day.