been preserved. Network Rail In 2004, Network Rail acquired three locomotives (nos. 86210/253/424), of which the first two were converted to mobile load-bank testing locomotives, with the third used for spares. The two operational locomotives were reclassified as Class 86/9 and renumbered as 86901/902. They were formerly based at Rugby, but were moved and stored at Derby and carried the Network Rail all-over yellow livery. Their primary use was to test the overhead line supply of electrified lines by simulating various loads. Both locomotives were capable of running under their own power for positioning purposes, but could not haul any significant loads. Therefore, when being used to test the overhead supply, they had to be hauled by a diesel locomotive. As of 8 January 2014, they were removed from service and extracted from Derby by low-loader and taken to Long Marston. 86901 was subsequently taken to Sandbach Car and Commercial Dismantlers, where it was broken up, whilst 86902 suffered the same fate at CF Booth's scrapyard in Rotherham. 86424, the erstwhile source of spares, was exported to Hungary, where it is used as a source of spares for the Class 86s that were purchased by Floyd Zrt for freight usage. 86424 was returned to service with Floyd in late 2018, due to Floyd's need for an additional Class 86. Current operators Bulgaria export The first Class 86 to be exported to Bulgaria was 86233 in October 2012. It served as a spares donor for Bulmarket previously exported Class 87s, numbers 87009, 87017, 87023 and 87025. In March 2016, Bulmarket purchased an additional six Class 86 locomotives with the intent of operating them alongside their Class 87 locos. By the end of 2017 they had a fully operational fleet of six locos, renumbered into the 85xxx range: 85001 (ex-86701), 85002 (ex-86702), 85003 (ex-86213), 85004 (ex-86235), 85005 (ex-86231) and 85006 (ex-86234) Hungary export In 2008, Europhoenix completed a deal to purchase the remaining Class 86/2 fleet from HSBC Rail Leasing, numbering 23 locomotives, with the intention of overhauling some of them for use in Europe and the UK. 86248 and 86250 were sold to Hungarian private open access freight operator Floyd Zrt and were delivered in February and May 2009, becoming Hungarian Class 450. As of 2020, Floyd Zrt owns nine Class 86 locomotives. Locomotive Services Following their replacement on the Caledonian Sleeper trains, one of the two class 86s owned by