What this means
The IEEE assigned the MA-L block 0090BB to TAINET COMMUNICATION SYSTEM Corp.. 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 00:90:BB, it is TAINET COMMUNICATION SYSTEM Corp. hardware.
Frequently Asked Questions
Who owns MAC prefix 0090BB?
0090BB is registered to TAINET COMMUNICATION SYSTEM Corp. 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. TAINET COMMUNICATION SYSTEM Corp.'s block covers 16,777,216 addresses.
What devices use 0090BB?
Any network device with a MAC address starting 00:90:BB was manufactured by or for TAINET COMMUNICATION SYSTEM Corp..