Herholdt Controls srl

Unique prefixes: 4

Block Size: 16380 (16.38 k)

First registration: 21 February 2011

Last updated: 20 November 2023

Types

IAB: Individual Address Blocks. 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:C2:4D:4 IAB 2011-02-21
70:B3:D5:4A:1 MA-S 2016-02-18
70:B3:D5:C6:B MA-S 2020-12-04
8C:1F:64:55:4 MA-S 2023-11-20