What this means
The IEEE assigned the MA-L block C87765 to Tiesse SpA. 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 C8:77:65, it is Tiesse SpA hardware.
Frequently Asked Questions
Who owns MAC prefix C87765?
C87765 is registered to Tiesse SpA 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. Tiesse SpA's block covers 16,777,216 addresses.
What devices use C87765?
Any network device with a MAC address starting C8:77:65 was manufactured by or for Tiesse SpA.