What this means
The IEEE assigned the MA-L block 00604D to MMC NETWORKS, 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 00:60:4D, it is MMC NETWORKS, INC. hardware.
Frequently Asked Questions
Who owns MAC prefix 00604D?
00604D is registered to MMC NETWORKS, 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. MMC NETWORKS, INC.'s block covers 16,777,216 addresses.
What devices use 00604D?
Any network device with a MAC address starting 00:60:4D was manufactured by or for MMC NETWORKS, INC..