This program displays the name of the company that manufactured your network card. You can also do a reverse lookup and find the MAC addresses registered by a company. You can also generate random MAC addresses.
Last Updated: 08 November 2024MAC addresses: 52932Vendors: 32010Lookup single MAC Address Multiple MAC Addresses What is a MAC address? What is OUI? What are MA-L, MA-M, MA-S?A MAC address is a unique identifier for network interfaces. It is a 48-bit number (12 hexadecimal characters). They can either be written in either of these formats:
MM:MM:MM:SS:SS:SSMM-MM-MM-SS-SS-SSAn OUI {Organizationally Unique Identifier} is a 24-bit number that uniquely identifies a vendor or manufacturer. They are purchased and assigned by the IEEE. The OUI is basically the first three octets of a MAC address. For example, these are examples of OUI:
00:00:0A -- this is owned by Omron00-0D-4B -- this is owned by Roku, LLCMA-L, or MAC Address Block Large is a block of MAC addresses where the maximum number of addresses is 224 or 16 million. MA-L was previously known as OUI.
MA-M, or MAC Address Block Medium, is a block of MAC addresses where the maximum number of addresses is 220 or 1 million.
MA-S, or MAC Address Block Small, is a block of MAC addresses where the maximum of addresses is 212 or 4096. MA-S was previously known as OUI-36. IAB is also known as Individual Address Blocks and the number of addresses is 224 or 16 million.
Read my article about MAC addresses
How to find the MAC addressHow to find the MAC address in Windows Go to the DOS promptClick on Start button, select RunType cmd and press ENTERIn the DOS prompt, type ipconfig /all and press ENTERYou should see the MAC address in this format 00:00:00:00:00:00How to find the MAC address in Unix or Linux Go to a terminalIn the terminal, type ifconfig and press ENTERYou should see the MAC address in this format 00:00:00:00:00:00 following HWaddrHow to find the MAC address in Mac OS Go to Utilities (Finder > Utilities OR command + shift + u) and start the Terminal app.Type this in the Terminal:networksetup -listallhardwareportsYou will see a list of all the network interfaces with their MAC addresses (Ethernet Address). An example output is this:networksetup -listallhardwareportsHardware Port: Bluetooth DUNDevice: Bluetooth-ModemEthernet Address: N/AHardware Port: EthernetDevice: en0Ethernet Address: 10:dd:b1:xx:xx:xxHardware Port: FireWireDevice: fw0Ethernet Address: 10:dd:b1:ff:fe:xx:xx:xxHardware Port: Wi-FiDevice: en1Ethernet Address: 4c:8d:79:xx:xx:xxHardware Port: Bluetooth PANDevice: en3Ethernet Address: N/AVLAN Configurations===================Home > Network Utilities > MAC Address Lookup