Sorry if this is a dumb question but I'm planefaggin' right now and noticed this 'Boeing RC-135U Combat Sent' running this callsign WINSR01*

the reason I find this unusual is because I looked up the plane and it says this;

"There are only two Combat Sent aircraft in the Air Force inventory and both are assigned to the 55th Wing at Offutt AFB, Neb. The RC-135U aircraft are manned by Air Combat Command crews from the 45th Reconnaissance Squadron and the 97th Intelligence Squadron (of the Air Force Intelligence, Surveillance and Reconnaissance Agency)."

https://www.military.com/equipment/rc-135u-combat-sent

if that is the case, one is air born right now heading south over Flint, Michigan currently.