I was tipped off by one of the Forum members on Fighter Control that NATO was unhappy with the likes of Live ATC giving us such wonderful access to Operation Unified Protector. As a result in the time I've been away from listening new callsigns have crept in. They are now using "OUP" and a 3 digit number to identify the aircraft.For example OUP 915 is an E-8C and UOP 652 is an AWACS.
Tankers at the minute still using Mobil....will monitor to see if all aircraft fall into the new pattern.