How to Locate Your Ethernet MAC Address

The Ethernet MAC Address is a unique identifier for network cards, of the form 05-A8-34-C3-67-B4 or 05A8342367B4 (6 pairs of digits and characters in the range A-F, which might or might not be separated by hyphens). This number is often imprinted on the network card; however, you may query your computer for the number, using one of the following methods:

For Windows 7

1. Click Start, then Run. (Start globe on 7)
2. Type cmd
3. Click OK. The command prompt window will appear.
4. At the prompt, type the following: ipconfig /all
5. Press Enter.
6. The MAC Address and other parameters will be displayed in the DOS window. Write down the MAC Address for your adapter. It may also be listed as "Hardware Address" or "Physical Address." It will look something like the following: 00 0B 4D 2F 62 7A

For Macintosh (OS 10.5 and higher) Systems

1. From the dock, select System Preferences.
2. Select the Network applet.
3. Select Ethernet from the left hand side.
4. Click on Advanced from the lower right.
5. For OS X 10.8 or 10.9:
   1. Select the Hardware tab.
   2. The MAC Address should be listed.
6. For other OS X:
   1. Select the Ethernet tab.
   2. The number next to Ethernet ID is you MAC Address. It will look something like the following: 00:0B:4D:2F:62:7A

For Linux Systems

1. Type the following command: /sbin/ifconfig (on some distributions, just ifconfig)
2. When all the parameters are displayed, locate and write down the MAC address.