There are a few providers who used this device. If it's been connected to the internet, it may tell you on the main screen, like Sunrocket, Gobalinx, etc...
From what I've seen, the 2102's that were programmed for Sunrocket and haven't been on the 'net before, they won't provision. Their info is gone off Sipura's website.
The other way is to sniff the WAN port and see where it's going.
