Adtran Inc

Adtran Inc accessible at www.adtran.com, manages 13 unique MAC address prefixes. These prefixes are part of a massive allocation with a total block size of 218.1 million addresses.

The allocation includes the following types: MA-L (Mac Address Block Large, ~16 million addresses each).

The company registered its MAC address allocation on 22 April 1998, and the most recent update was made on 12 May 2025. These allocations support network identification and communication globally.

Unique prefixes: 13

Block Size: 218103795 (218.1 M)

www.adtran.com

First registration: 22 April 1998

Last updated: 12 May 2025

Types

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

MAC PrefixTypeRegistration Date
00:01:4F MA-L2000-11-09
00:19:92 MA-L2006-09-25
00:24:45 MA-L2008-12-03
00:A0:C8 MA-L1998-04-22
20:5F:3D MA-L2019-05-10
28:D0:CB MA-L2018-04-25
38:F8:F6 MA-L2022-09-15
54:22:E0 MA-L2023-10-19
64:A0:AC MA-L2025-05-12
84:4D:4C MA-L2024-10-29
AC:13:9C MA-L2021-01-05
AC:51:EE MA-L2012-02-04
CC:66:18 MA-L2022-01-22