Secure Systems & Services

Unique prefixes: 4

Block Size: 16789500 (16.78 M)

First registration: 22 April 1998

Last updated: 10 October 2017

Types

IAB: Individual Address Blocks. Number of address 2^24 (~16 Million)

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

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

MAC Prefix Type Registration Date
00:50:C2:33:9 IAB 2011-02-21
00:50:C2:5D:B IAB 2011-02-21
00:80:6C MA-L 1998-04-22
70:B3:D5:71:7 MA-S 2017-09-27