Routes prefix is ec
 
First Eastern Counties 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 = | Coastal Clipper | |
| b = | Blue front routes 25 & 26 | |
| c = | Coastal Reds | |
| d = | Red Front routes 23 & 24 | |
| e = | Excel | |
| g = | Green Front 14 & 15 | |
| h = | Charcoal Front 40, 41 & X41 | |
| i = | Ipswich Park & Ride | |
| k = | Pink Front routes 11 & 12 | |
| l = | Coastlink | |
| o = | Orange front routes 21 & 22 | |
| p = | Purple front routes 36, 37 & 38 | |
| r = | Ipswich Reds | |
| s = | Coastal Clipper Open Top | |
| t = | Turquoise Front route 13 | |
| u = | Livery from Previous Division | |
| w = | Network Norwich | |
| y = | Yellow Front route 28, 28 & X29 | |
| T = | Training | |
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