What this means
The IEEE assigned the MA-L block C84F86 to Sophos Ltd. 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 C8:4F:86, it is Sophos Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix C84F86?
C84F86 is registered to Sophos Ltd 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. Sophos Ltd's block covers 16,777,216 addresses.
What devices use C84F86?
Any network device with a MAC address starting C8:4F:86 was manufactured by or for Sophos Ltd.