Who owns MAC prefix 1C129D?

1C129D is registered to IEEE PES PSRC/SUB in the IEEE MA-L registry.

What devices use 1C129D?

Any network device with a MAC address starting 1C:12:9D was manufactured by or for IEEE PES PSRC/SUB.

MA-L · OUI prefix

IEEE PES PSRC/SUB

Any MAC address starting 1C:12:9D is registered to IEEE PES PSRC/SUB in US.

OUI prefix	1C129D
Vendor	IEEE PES PSRC/SUB
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	1C:12:9D:00:00:00

What this means

The IEEE assigned the MA-L block 1C129D to IEEE PES PSRC/SUB. 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 1C:12:9D, it is IEEE PES PSRC/SUB hardware.

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