What this means
The IEEE assigned the MA-L block 58677F to Clare Controls 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 58:67:7F, it is Clare Controls Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 58677F?
58677F is registered to Clare Controls 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. Clare Controls Inc.'s block covers 16,777,216 addresses.
What devices use 58677F?
Any network device with a MAC address starting 58:67:7F was manufactured by or for Clare Controls Inc..