MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Westermo Network Technologies AB
Westermo Network Technologies AB , manages 3 unique MAC address prefixes. These prefixes have a total block size of 50.3 million addresses.
The allocation includes the following types: MA-L(Mac Address Block Large, 16,777,216 addresses each).
The company registered its MAC address allocation on 24 October 2001, and the most recent update was made on 26 September 2026. These allocations support network identification and communication globally.
Unique prefixes: 3
Block Size: 50331645 (50.33 M)
First registration: 24 October 2001
Last updated: 26 September 2026
Types
MA-L:Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)