For example, let's take a network adapter with the MAC address "00-A0-C9-14-C8-29." The OUI (Organizational Unique Identifier) for the manufacture of this router is the first three octets ("00-A0-C9") is Intel corporation and the rightmost six digits represent the Network Interface Controller.
Mac address on a mac prolaptop serial number#
The second half (24 more bits) of the MAC address represents the serial number assigned to the adapter by the manufacturer.Īs shown in the above diagram, MAC addresses are 12-digit hexadecimalnumbers (48 bits in length or 6-byte binary number).These IDs are regulated by an Internet standards organization. The first half (24 bits) of the MAC address contains the ID number of the adapter manufacturer.There are three types of MAC addresses: Unicast, Multicast, and Broadcast. They have already planned to extend the MAC address space to 64 bits and will call it EUI-64. MAC addresses are often considered permanent, but in some conditions, they can be changed.Ī 48-bit MAC address is represented as a string of six octets, "MM:MM:MM:SS:SS:SS". Their current projection is that the amount of addresses available with 48 bits (over 281 Trillion) will last until 2100.If you also want the machines serial number, at the command prompt enter wmic bios get serialnumber.
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Sometimes, colons (:) are used instead of dashes (-). The result is the wireless mac address (and wired if you have an RJ45 port).