Is 811 10th (NYCMNY54) even interesting from an Internet perspective any longer? Yes, the building is part of AT&T’s network (AS7018), but as far as I’m aware, no peering occurs here at all. I’d look for equivalent shady racks or rooms at 60 Hudson, 111 8th and 25 Broadway.

Maybe the comfortable relationship between NSA and at&t are more the driver for the location, and the fiber taps are all backhauled here.

From a voice perspective, though, I’d think this was still a useful surveillance point, given AT&T likely still tandems traffic here.