What this means
The IEEE assigned the MA-L block 30B346 to CJSC NORSI-TRANS. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 30:B3:46, it is CJSC NORSI-TRANS hardware.
Frequently Asked Questions
Who owns MAC prefix 30B346?
30B346 is registered to CJSC NORSI-TRANS in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. CJSC NORSI-TRANS's block covers 16,777,216 addresses.
What devices use 30B346?
Any network device with a MAC address starting 30:B3:46 was manufactured by or for CJSC NORSI-TRANS.