Siemens AG Energy Management Division

Unique prefixes: 1

Block Size: 16777215 (16.77 M)

First registration: 10 February 2016

Types

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

MAC Prefix Type Registration Date
B4:B1:5A MA-L 2016-02-10