What this means
The IEEE assigned the MA-L block 000123 to Schneider Electric Japan Holdings 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 00:01:23, it is Schneider Electric Japan Holdings Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 000123?
000123 is registered to Schneider Electric Japan Holdings 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. Schneider Electric Japan Holdings Ltd.'s block covers 16,777,216 addresses.
What devices use 000123?
Any network device with a MAC address starting 00:01:23 was manufactured by or for Schneider Electric Japan Holdings Ltd..