Frequently Asked Question
Media Access Control, or MAC address, uses 12 hexadecimal numbers and can only be written with the characters, 0 – 9 and A – F
The MAC address is usually written in the form:
MM:MM:MM:SS:SS:SS (note that M & S are not valid hexadecimal characters, just being used for representation)
The first half of a MAC address contains the ID number of the adapter manufacturer.
The second half of a MAC address represents the serial number assigned to the adapter by the manufacturer.
In the example, 00:A0:C9:14:C8:29
The prefix 00A0C9 is an Intel Corporation identifier
Locating the MAC address on your PC
Locating the MAC address on your Macintosh