MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
NR
IEEE Registrant 4 Prefixes
Nanjing RISC-V Institute Co., Ltd.
Nanjing RISC-V Institute Co., Ltd. manages 4 unique MAC address prefixes. These prefixes have a total block size of 67.1 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 July 2026, and the most recent update was made on 23 September 2026. These allocations support network identification and communication globally.
Unique prefixes 4
Block Size 67108860 (67.1 M)
First registration 24 July 2026
Last updated 23 September 2026
Entity Details
Unique prefixes 4
Block Size 67108860 (67.1 M)
First registration 24 July 2026
Last updated 23 September 2026
Types
MA-L: Block Type
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)