MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address

Active Brains

Unique prefixes: 3

Block Size: 17829885 (17.82 M)

First registration: 06 September 2016

Last updated: 31 May 2023

Types

MA-L: Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

MA-M: Mac Address Block Medium. Number of address 2^20 (~1 Million)

MA-S: Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)