MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
topsystem GmbH
Unique prefixes: 1
Block Size: 16777215 (16.77 M)
First registration: 07 May 2011
Last updated: 11 January 2023
Types
MA-L: Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
| MAC Prefix | Type | Registration Date |
|---|---|---|
| E4:12:89 | MA-L | 2011-05-07 |