MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
MAC address prefix 00:12:0F is registered to IEEE 802.3 Working Group, located at IEEE 802.3 Chairc/o RAC AdministratorIEEEPiscataway NJ 08854US.
This registration is classified as MA-L (Mac Address Block Large) containing 16,777,216 MAC addresses (2^24)
The prefix was initially registered on 12 August 2004, with the most recent update made on 20 September 2026.
OUI: 00:12:0F
Vendor name: IEEE 802.3 Working Group
Address:
Assignment Type MA-L IEEE 802.3 Chair
c/o RAC Administrator
IEEE
Piscataway NJ 08854
US.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 20 September 2026
Initial registration: 12 August 2004
