What this means
The IEEE assigned the MA-L block 28BB59 to RNET Technologies, Inc.. 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 28:BB:59, it is RNET Technologies, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 28BB59?
28BB59 is registered to RNET Technologies, Inc. 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. RNET Technologies, Inc.'s block covers 16,777,216 addresses.
What devices use 28BB59?
Any network device with a MAC address starting 28:BB:59 was manufactured by or for RNET Technologies, Inc..