I'm in the Detroit Beer Company, watching the Red Wings on the big screen TV, waiting for my Thai Chicken pizza, and using their free wireless internet.
Their router set-up in novel: The router is 172.16.0.1, and the network is 255.255.0.0. I imagine someone else must be handling this for them, but still, why would a dinky restaurant, where I am the only computer in the place (everyone is watching hockey!), need so many addresses?
I think the supplier is NTN, which is what it says on these power-line insulator looking wireless access points.