What this means
The IEEE assigned the MA-L block 7CBF77 to SPEEDTECH CORP.. 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 7C:BF:77, it is SPEEDTECH CORP. hardware.
Frequently Asked Questions
Who owns MAC prefix 7CBF77?
7CBF77 is registered to SPEEDTECH CORP. 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. SPEEDTECH CORP.'s block covers 16,777,216 addresses.
What devices use 7CBF77?
Any network device with a MAC address starting 7C:BF:77 was manufactured by or for SPEEDTECH CORP..