Mac address Lookup

Please type the mac address in the textbox below in the following format:

Format 1 xx-xx-xx-xx-xx-xx

Format 2 xx:xx:xx:xx:xx:xx




please wait

MAC address introduction

The whole name of mac addree is called media access control address , some people also call it hardware address or physical address

The mac address is designed to be a unique address for each network interfaced ever manufactured. But in modern operating systems , you can change the address in the software level ,to spoof another mac address

The standard mac address is composed by 12 hex digits , each 2 digits is one group,Like this xx-xx-xx-xx-xx-xx

Each group can be separated by dash(-) or colon(:)

xx-xx-xx-xx-xx-xx

xx:xx:xx:xx:xx:xx

each group of hex digits has its unique meaning

the first 3 pairs of hex digits unique identify the organization that are issued the identifier.

Which is known as the Organizationally Unique Identifier (OUI)

The last 3 pairs of hex digits can be assign by the organization as whatever they want , but should not in a repetitive manner.

With the emerge of ipv6 , a new format of mac address called EUI-64 start to appear ,which is an extension of the traditional 48bit mac address, but as the time of writing , we shall see a transition from 48bit mac address to 64bit mac address in the future.