[MilCom] question??

[MICHAEL SHARRITT]

I have a question regarding an aircraft,i just had
NAVY 600 with memphis center,120.8,request direct
redstone,he then contacted KHSV approach then to the
GCA at redstone,Does anybody know what this is,I ran
the number came back to T-2 and T-45,THANKS!!!!

                                Michael

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