What this means
The IEEE assigned the MA-L block 000F7B to Arce Sistemas, S.A.. 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 00:0F:7B, it is Arce Sistemas, S.A. hardware.
Frequently Asked Questions
Who owns MAC prefix 000F7B?
000F7B is registered to Arce Sistemas, S.A. 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. Arce Sistemas, S.A.'s block covers 16,777,216 addresses.
What devices use 000F7B?
Any network device with a MAC address starting 00:0F:7B was manufactured by or for Arce Sistemas, S.A..