Route prefix for Stagecach South is SO.
 
Stagecoach South employs branding on some of its routes. The brand applied to a vehicle will be shown by a letter next to the fleet number. Generic (non branded) buses just display without a brand letter. Current brands are :-
| a = | Active 8 | |
| c = | Coastliner 700 | |
| d = | Distance | |
| g = | Gold | |
| h = | Havant 39 | |
| i = | The Witterings | |
| l = | Local liv | |
| o = | Connect 7 | |
| p = | Pulse | |
| r = | Route 3 | |
| s = | South Downs | |
| t = | Portsmouth 23 | |
| u = | Guildford Park and Ride | |
| v = | University of Surrey 1/2 | |
| w = | Winchester Park and Ride | |
| y = | Yo-Yo | |
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