If the computer has Mac OS X, follow these steps:
1. From the Apple menu, choose Location, and Network Preferences from the submenu.
2. From the Show pop-up menu, choose AirPort.
3. Click the TCP/IP tab.
The AirPort ID is listed at the bottom of the window.
If the computer does not have Mac OS X, locate the serial number label instead. The AirPort ID (or "wireless MAC address") may be printed on the label. If you need help locating the serial number label, see technical document 88060, "
PowerBook G4: How to Find the Serial Number".