Who owns MAC prefix 000123?

000123 is registered to Schneider Electric Japan Holdings Ltd. in the IEEE MA-L registry.

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..

MA-L · OUI prefix

Schneider Electric Japan Holdings Ltd.

Any MAC address starting 00:01:23 is registered to Schneider Electric Japan Holdings Ltd. in JP.

OUI prefix	000123
Vendor	Schneider Electric Japan Holdings Ltd.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:01:23:00:00:00

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.

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