I used to work in one of the taller buildings in a city. At the top of the building, there was a bunch of cell infrastructure. We were installing some radio equipment in the radio room (the same place AT&T and the others had their stuff), and I noticed two identical locked server boxes. They were very heavy-duty compared to the server cabinets I'm used to. One was marked "FBI" and the other was marked "USMS/DEA" (or something like that).
I couldn't really tell without going through a bunch of ceiling-mounted wires, but I'm pretty sure these were connected to some of the civilian cell infrastructure. There wasn't much else to connect to up there.
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I used to work in one of the taller buildings in a city. At the top of the building, there was a bunch of cell infrastructure. We were installing some radio equipment in the radio room (the same place AT&T and the others had their stuff), and I noticed two identical locked server boxes. They were very heavy-duty compared to the server cabinets I'm used to. One was marked "FBI" and the other was marked "USMS/DEA" (or something like that).
I couldn't really tell without going through a bunch of ceiling-mounted wires, but I'm pretty sure these were connected to some of the civilian cell infrastructure. There wasn't much else to connect to up there.