What this means
The IEEE assigned the MA-L block EC65CC to Panasonic Automotive Systems Company of America. 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 EC:65:CC, it is Panasonic Automotive Systems Company of America hardware.
Frequently Asked Questions
Who owns MAC prefix EC65CC?
EC65CC is registered to Panasonic Automotive Systems Company of America 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. Panasonic Automotive Systems Company of America's block covers 16,777,216 addresses.
What devices use EC65CC?
Any network device with a MAC address starting EC:65:CC was manufactured by or for Panasonic Automotive Systems Company of America.