Who owns MAC prefix 001255?

001255 is registered to NetEffect Incorporated in the IEEE MA-L registry.

What devices use 001255?

Any network device with a MAC address starting 00:12:55 was manufactured by or for NetEffect Incorporated.

MA-L · OUI prefix

NetEffect Incorporated

Any MAC address starting 00:12:55 is registered to NetEffect Incorporated in US.

OUI prefix	001255
Vendor	NetEffect Incorporated
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:12:55:00:00:00

What this means

The IEEE assigned the MA-L block 001255 to NetEffect Incorporated. 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 00:12:55, it is NetEffect Incorporated hardware.

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