MAC Address Lookup

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

 MAC

EFM Networks

Unique prefixes: 7

Block Size: 117440505 (117.44 M)

First registration: 14 December 2001

Last updated: 16 September 2020

Types

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

MAC PrefixTypeRegistration Date
00:08:9FMA-L2001-12-14
00:26:66MA-L2010-01-05
58:86:94MA-L2020-09-16
64:E5:99MA-L2013-03-11
70:5D:CCMA-L2018-07-22
88:36:6CMA-L2016-07-14
90:9F:33MA-L2014-07-13