Carnegie Mellon University

Find the MAC Address

A MAC (Media Access Control) address, sometimes referred to as a hardware or physical address, is a unique, 12-character alphanumeric attribute that is used to identify individual electronic devices on a network. An example of a Mac address is: 00-B0-D0-63-C2-26.

Note: Many devices have multiple MAC addresses, so consider your device and whether you'll be connecting via an ethernet cable (wired) or over a wi-fi network (wireless) before selecting yours. 

Computers

Chrome OS

  1. Sign in to your Chromebook.
  2. Click the time (bottom right).
  3. Click Network (left).
  4. Click the network you would like to view the MAC address for.
  5. The MAC address is listed below.

Mac

  1. Select Apple menu > System Preferences.
  2. Click Network.
  3. Click the network you would like to view the MAC address for.
  4. Click Advanced
  5. Click Hardware
  6. The MAC address is listed below.

Windows

  1. Click StartControl Panel > Network and Internet > Network and Sharing Center.
  2. Click the network you would like to view the MAC address for.
  3. Click Details.
  4. The MAC address is listed under the Physical Address heading.