TalkGroups?

I noticed the ProScan logged in a Talk Group #10401 (6 Hits) on the 700MHz freq. but I did not here any of the transmission! Looked at AWIN System and this number RANGE does not exist! Started looking in neighboring states and found in the MIssissippi system: "10401 28a1 D R1 SE CMN Region 1 Special Event Common Interop Z2 Interop - Zone 2 Interoperability"

Do you recon this was just a visiting Radio in my area and was just passing through?? Thanks