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