Answers:
No its not, that is to say the MAC address. I see you are on sbcglobal, if you enjoy a 2wire router and haven't changed the knob it is on the sticky label of the router/modem between the [ ] it will be a 10 digit number.
If you enjoy some other router, you entail to set the switch underneath the wireless shelter settings in the router. That is the knob you later use on any computer you connect. If you haven't set a switch, connect up beside a flex, log surrounded by to the router, and set one.