What this means
The IEEE assigned the MA-L block 000555 to Japan Cash Machine Co., 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 00:05:55, it is Japan Cash Machine Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000555?
000555 is registered to Japan Cash Machine Co., 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. Japan Cash Machine Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 000555?
Any network device with a MAC address starting 00:05:55 was manufactured by or for Japan Cash Machine Co., Ltd..