What this means
The IEEE assigned the MA-L block EC5C69 to MITSUBISHI HEAVY INDUSTRIES MECHATRONICS SYSTEMS,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 EC:5C:69, it is MITSUBISHI HEAVY INDUSTRIES MECHATRONICS SYSTEMS,LTD. hardware.
Frequently Asked Questions
Who owns MAC prefix EC5C69?
EC5C69 is registered to MITSUBISHI HEAVY INDUSTRIES MECHATRONICS SYSTEMS,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. MITSUBISHI HEAVY INDUSTRIES MECHATRONICS SYSTEMS,LTD.'s block covers 16,777,216 addresses.
What devices use EC5C69?
Any network device with a MAC address starting EC:5C:69 was manufactured by or for MITSUBISHI HEAVY INDUSTRIES MECHATRONICS SYSTEMS,LTD..