How to Find an IP Address Associated With a Mac Address

By Stephanie Breaux

A Media Access Control address, commonly known as a MAC address, is a 48- or 64-bit address linked to a network adapter. MAC addresses are similar to IP addresses, however, a MAC addresses is associated with hardware of network adapters instead of software. Generally, MAC addresses are permanent and will always stay assigned to a piece of hardware. If you are curious about the MAC addresses associated with an IP address on your computer, you may use the command prompt to discover the information.

Step 1

Click "Start" and select "Run."

Step 2

Type "cmd" into the box. Click on the "OK" button. The command prompt window will display.

Step 3

Type "arp" into the command prompt window then press the "Enter" key. A list of commands associated with arp will display.

Step 4

Type "arp - a" into the command prompt window. Press the "Enter" key. This will cause a list of MAC addresses to display with associated IP addresses. Scroll down the list and find the IP addresses associated with the MAC address. An example of a MAC addresses associated with an IP address is as follows:157.55.85.212 00-aa-00-62-c6-09The first number listed, "157.55.82.212" is the IP address. The second number, "00-aa-00-62-c6-09" is the MAC address.