A knowledge base article about How do I lookup the MAC address of my computer? provided by the UC Berkeley IT Service Hub - Knowledge Portal

For various reasons (including registering a device for use with the DHCP Service), you may need to find the MAC address for your device.

Easy version:

To find the MAC address on your Windows computer:

Click the Start menu and open Settings (the gear icon).
Select Network & internet on the left menu.
Click on Wi-Fi or Ethernet, depending on how you are connected, then click on Properties (or click your connected network name).
Scroll to the bottom of the page to find the Physical address (MAC) listed there.

To find the MAC address on your Apple computer:

Choose System Settings from the Apple menu.
Select Network.
Choose a connection (Wi-Fi or Ethernet) for the wireless adapter MAC, then click Details
Select Hardware from the left menu (the MAC address is listed).

Advanced version:

On Windows machine, you can run the command line:

Click on the Start menu in the bottom-left corner of your computer. Select Run or type cmd into the search bar at the bottom of the Start menu to bring up the command prompt.
Type ipconfig /all (note the space between the g and /).
The MAC address is listed as series of 12 digits, listed as the Physical Address (00:1A:C2:7B:00:47, for example). Each network adapter (wireless, Ethernet, etc.) has a separate MAC address.

On Apple Machine, you can run the Terminal App

Open Spotlight by pressing CMD + Space, type Terminal, and press Enter
Type the following command and press Enter:
```
ifconfig
```
Look through the list for your network (Wif-or Ethernet) and look for en0
The code next to it (six pairs of letters and numbers) is your MAC address

For additional assistance, contact ITCS at 510-664-9000 and follow the prompts to reach a technician from between 8 am to 5 pm, Monday through Friday. A ticket may also be submitted by e-mailing itcsshelp@berkeley.edu