What this means
The IEEE assigned the MA-L block 300475 to QBIC COMMUNICATIONS DMCC. 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 30:04:75, it is QBIC COMMUNICATIONS DMCC hardware.
Frequently Asked Questions
Who owns MAC prefix 300475?
300475 is registered to QBIC COMMUNICATIONS DMCC 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. QBIC COMMUNICATIONS DMCC's block covers 16,777,216 addresses.
What devices use 300475?
Any network device with a MAC address starting 30:04:75 was manufactured by or for QBIC COMMUNICATIONS DMCC.