755’s operate the following routes:
Stansted-Norwich,
Cambridge-Ipswich.
Ipswich-Peterborough 2 hourly,
Ipswich-Lowestoft,
Ipswich-Felixstowe,
Norwich-Lowestoft.
Norwich-Great Yarmouth,
Norwich-Sherringham.
on these routes all services are operated by 755’s, so its easy to get 755’s, and then there is the 745 variants which operate London-Norwich and London-Stansted Airport, with Stansted Expresses being booked no 1st class and Norwich being booked 1st Class units, though they often swap around , so some Norwich have no 1st Class. The best way to bash 755’s is get the Greater Anglia Day Ranger which covers al 755 routes and Norwich-Ipswich for 745 units, though on the Ipswich-Peterborugh route one ca only go far as Ely, the rover is about £35.00 for adult.
I personally think the 755’s and 745’s are some of the best units in the UK and are a pleasant way to explore Suffolk and Norfolk, with some really nice scenery and great places to visit, to make a really good day out.