IO Master Technology

Unique prefixes: 2

Block Size: 1052670 (1.05 M)

First registration: 07 January 2022

Last updated: 02 November 2023

Types

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)

MAC Prefix Type Registration Date
78:39:2D:5 MA-M 2023-11-02
8C:1F:64:BD:3 MA-S 2022-01-07