And Steven Knight Media has kindly posted the official allocations

131 ADL Enviro 400MMCs
11139-11156 Morecambe [Stagecoach Cumbria & North Lancashire]
11157 Carlisle [Stagecoach Cumbria & North Lancashire]
11158 Carlisle but currently with Stagecoach UK Bus for IT cloud evaluation [Stagecoach Cumbria & North Lancashire]
11161-11162 Elgin [Stagecoach North Scotland]
11163-11175 Macduff [Stagecoach North Scotland]
11176-11191 Aberhill [Stagecoach East Scotland]
11192-11201 Hull [Stagecoach East Midlands]
(17) Northampton [Stagecoach Midlands]
(21) Witney [Stagecoach Oxfordshire]
(18) Sharston [Stagecoach Manchester]

95 ADL Enviro 200MMC (11.8m)
(24) Thanet [Stagecoach South East]
(21) Hull [Stagecoach East Midlands]
(18) Stockton [Stagecoach North East]
(32) Basingstoke [Stagecoach South]

28 ADL Enviro 200 MMC (10.8m)
37602-37615 Holbrook [Stagecoach Yorkshire]
37616-37629 Cheltenham [Stagecoach West]

12 Volvo B8L/ADL Enviro 400MMC XLB
13901-13912 Fenstanton/Busway [Stagecoach East]

32 BYD/ADL Enviro 400 400 electric
(32) Sharston [Stagecoach Manchester]

12 Optare Metrocity electric
(12) Caerphilly [Stagecoach South Wales]

4 Optare Solo electric
(4) Caerphilly [Stagecoach South Wales]

3 Optare Solo SR slimline
48041-48043 Merthyr [Stagecoach South Wales]

12 Volvo B8RLE/MCV
(12) Merthyr [Stagecoach South Wales]

14 Volvo B11RlE double deck coaches
50406-50411 Megabus/Cumbernauld [Stagecoach West Scotland]
50412-50419 CityLink/Cumbernauld [Stagecoach West Scotland]

8 Volvo B11R/Caetano Levate III coaches
54404-54411 National Express duties/Chesterfield [Stagecoach Yorkshire]

https://www.stevenknightmedia.com/fleet-...for-201920