Anglia Having originally been based in the East Anglia region but later transferred away, in early 2005 they returned when One received nine from Central Trains in exchange for a similar number of Class 150s. The units were used on the following local services: Bittern Line - to via Wherry Lines - to / East Suffolk Line - to / Sudbury Branch Line - to as well as the longer distance services between to /. All nine passed to Abellio Greater Anglia when it took over the Greater Anglia franchise in February 2012. Despite being overhauled by Railcare Wolverton in 2012/13, including work to make them comply with disability legislation, all were replaced by Class 755s with the last day of service being 29 January 2020. These then moved to East Midlands Railway, where they were renumbered into the 156/9 subclass. Northern England Following privatisation, both Arriva Trains Northern and First North Western operated Class 156s and implemented their own refurbishment programmes. The two fleets were united when Northern Rail took over both franchises in 2004. Within the Northern region, Class 156s are concentrated in the North-West and also the North-East, but are uncommon now in Yorkshire and Humberside, where Class 158s and other unit types are used instead. In 2011, fourteen Class 156s were fitted with GPS as a trial for Northern Rail, being tested on the Esk Valley line. In 2011 four were transferred to East Midlands Trains. In January 2015, Northern Rail began to hire 156s to First TransPennine Express to operate Manchester Airport to Blackpool North services. Northern Rail's fleet of 42 Class 156s passed to Arriva Rail North when the then-new franchise started on 1 April 2016. The 156s began to operate Manchester Airport to Barrow in Furness and Oxenholme to Windermere services from this date after they along with the Manchester Airport to Blackpool North services were transferred to the franchise. An additional five Class 156 units transferred to Northern from Abellio ScotRail in late 2018. On 1 March 2020 the Northern units were transferred to new operator Northern Trains. Fifteen Class 156s are to be transferred from East Midlands Railway to Northern Trains. These units include the nine Class 156/9s formerly used by Greater Anglia. Some of these units are already with Northern Trains, with more due to follow. The delivery of them commenced at the December timetable change in 2021. For the