What this means
The IEEE assigned the MA-L block CCF55F to E FOCUS INSTRUMENTS INDIA PRIVATE LIMITED. 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 CC:F5:5F, it is E FOCUS INSTRUMENTS INDIA PRIVATE LIMITED hardware.
Frequently Asked Questions
Who owns MAC prefix CCF55F?
CCF55F is registered to E FOCUS INSTRUMENTS INDIA PRIVATE LIMITED 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. E FOCUS INSTRUMENTS INDIA PRIVATE LIMITED's block covers 16,777,216 addresses.
What devices use CCF55F?
Any network device with a MAC address starting CC:F5:5F was manufactured by or for E FOCUS INSTRUMENTS INDIA PRIVATE LIMITED.