MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
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 |