What this means
The IEEE assigned the MA-L block 00300F to IMT - Information Management T. 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 00:30:0F, it is IMT - Information Management T hardware.
Frequently Asked Questions
Who owns MAC prefix 00300F?
00300F is registered to IMT - Information Management T 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. IMT - Information Management T's block covers 16,777,216 addresses.
What devices use 00300F?
Any network device with a MAC address starting 00:30:0F was manufactured by or for IMT - Information Management T.