Mac Address Generator is an online tool to represent your MAC address based on your selection of address format and the prefix values. MAC is the abbreviation of Media Access Controller and it has the 12 digit identification number assigned by the Network Interface Card (NIC) manufacturers. This identification number is called as MAC address and it is represented in three formats using three different separators like Colon (:), hyphen (-) and Blank Space. Any one of these separators is used for grouping the MAC address and each group contains 2 Hex numbers. Usually MAC address is being provided in encrypted format. To decrypt the MAC address, enter the prefix of your MAC address and click on the Generate MAC Address button displays the original MAC address of your Network Interface Card.