Find the vendor name of a device by entering an OUI or a MAC address
Western Digital Technologies, Inc.
Western Digital Technologies, Inc. , manages 2 unique MAC address prefixes. These prefixes are part of a massive allocation with a total block size of 33.6 million addresses.
The allocation includes the following types: CID (Company Identifier, not for globally unique applications), and MA-L (Mac Address Block Large, ~16 million addresses each).
The company registered its MAC address allocation on 17 June 2005, and the most recent update was made on 05 February 2025. These allocations support network identification and communication globally.
Unique prefixes: 2
Block Size: 33554430 (33.55 M)
First registration: 17 June 2005
Last updated: 05 February 2025
CID:Company Identifier. This prefix will not be used for globally unique applications. Number of address 2^24 (~16 Million)
MA-L:Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)