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In Mac OS X, how can I find the MAC address of my Ethernet or wireless interface?

In Mac OS X, your MAC (Media Access Control) address is distinct from the IP address assigned to your Mac, and is defined by the hardware of each Ethernet or AirPort interface. The MAC address is sometimes also called the Ethernet Hardware Address (EHA).

To find your MAC address, from the Apple menu, select System Preferences... . From the View menu in System Preferences, select Network.

  • In Mac OS X 10.5 and later, in the left column of the Network preference window that opens, click the name of your connection (e.g., Wi-Fi, AirPort, Ethernet, Built-in Ethernet). Click the Advanced... button, and in the sheet that drops down, click the Hardware, Ethernet, or AirPort tab. The address is the string of letters and numbers next to "MAC Address:", "Ethernet ID:", or "AirPort ID:".

  • In Mac OS X 10.4, in the Network preference window that opens, make sure the pull-down menu next to "Show:" lists your connection (e.g., AirPort, Built-in Ethernet). Under the Ethernet or AirPort tab, the string of letters and numbers next to "Ethernet ID:" or "AirPort ID:" is your MAC address.
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Last modified on February 13, 2013.

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