APPLE MAC OS

1. From the Apple menu, select System Preferences....
2. In System Preferences, from the View menu, select Network.
3. In the left of the "Network" window that opens, click the name of your connection (e.g., Wi-Fi, AirPort, Ethernet, Built-in Ethernet).
4. Click Advanced..., and in the sheet that appears, click the Hardware, Ethernet, or AirPort tab.

APPLE IOS (IPHONE, IPAD)

1. Open the Settings application.
2. From the list of setting categories, select General.
3. From the list of general settings, select About.
4. The MAC address is the value labeled Wi-Fi Address.
5. Leave the Settings application.

ANDROID

1. Open the Settings application.
2. From the list of setting categories, select About phone. (This category might be named something else, for example, About tablet.)
3. From the list of choices, select Hardware information. On some versions of Android, you may instead need to choose Status.
4. the MAC address is the value labeled Wi-Fi MAC Address.
5. Leave the Settings application.

WINDOWS 7/10

1. Click the Start button.
2. In the Run text box, type cmd.  This will open the command window.
3. At the command prompt, type ipconfig /all.
4. Copy down the "Physical Address" (aka the MAC address) from the "Ethernet adapter Wireless Network Connection" section.
5. Close the command prompt window.