I made a trip to Ohio today to pick up some Jeep parts and was surprised to see the number of "Unknown" TGID's that popped up Between Richmond In and W Milton Oh. There were probably 25 or more. I'll have to go back through the recordings but the first hit was a fire TGID and they were talking to either Tanker 38 or 138, can't remember which off hand. Just seems surprising that there are so many unknowns on MARCS. I'll post a list of them after I go through all of these recordings.