How to Determine the MAC Address of an iPhone
- 1). Press the home button on the front of the iPhone to activate the device's touch screen. Drag your finger across the screen from the left to the right to unlock it.
- 2). Tap the silver "Settings" icon with your finger. A list of the phone's internal settings will appear.
- 3). Press "General" near the bottom of the list of settings. A new page will appear.
- 4). Click "About" and scroll down. The list of numbers and letters (e.g., "00:23:EG:2R:GT:87") printed next to "Wi-Fi Address" is your iPhone's MAC address.
Source...