MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
RS
IEEE Registrant 2 Prefixes
Rohde & Schwarz Networks and Cybersecurity GmbH
Rohde & Schwarz Networks and Cybersecurity GmbH manages 2 unique MAC address prefixes. These prefixes have a total block size of 33.6 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 09 November 2000, and the most recent update was made on 02 November 2026. These allocations support network identification and communication globally.
Unique prefixes 2
Block Size 33554430 (33.55 M)
First registration 09 November 2000
Last updated 02 November 2026
Entity Details
Unique prefixes 2
Block Size 33554430 (33.55 M)
First registration 09 November 2000
Last updated 02 November 2026
Types
MA-L: Block Type
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)