Do they? If all this is in their DC then it’s going over their wires, unless their colo provider somehow had visibility into their traffic (which I’d guess they don’t).

It's in Deft's ORD and IAD data centers, using their network for ingress/egress. Still has to go over transit between those two locations.

But that might be baked into their enterprise pricing. Since it’s still “within” Deft. Site to site is common.

It's not within Deft because they rely on transit between ORD and IAD. That was the case a few years ago when I worked there, it's probably still the same.