What this means
The IEEE assigned the MA-L block 001974 to 16063. 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 00:19:74, it is 16063 hardware.
Frequently Asked Questions
Who owns MAC prefix 001974?
001974 is registered to 16063 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. 16063's block covers 16,777,216 addresses.
What devices use 001974?
Any network device with a MAC address starting 00:19:74 was manufactured by or for 16063.