[MilCom] Unknown Brit Operating a Reach Flight ??

[Slicer750 (Mike Day Mt Olivet KY)]

Does anyone have any idea what operated this RCH488T flight, it was a 
British
Hexcode !!! it was picked up on the east coast as well .............


Code   Callsign Reg            Type    Oper         Blocked FirstAlt 
LastAlt Last Update

420047 RCH488T  -------        ------- -------      BLOCK   38000    
38000   02:22:53


Mike D