Who owns MAC prefix 2C691D8?

2C691D8 is registered to IBM in the IEEE MA-M registry.

What devices use 2C691D8?

Any network device with a MAC address starting 2C:69:1D:8 was manufactured by or for IBM.

MA-M · OUI prefix

IBM

Any MAC address starting 2C:69:1D:8 is registered to IBM in US.

OUI prefix	2C691D8
Vendor	IBM
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	2C:69:1D:8:00:00:00

What this means

The IEEE assigned the MA-M block 2C691D8 to IBM. 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 2C:69:1D:8, it is IBM hardware.

Other IBM prefixes

IBM holds 7 registered blocks in total.

3440B5 40F2E9 904E917 98BE94 A897DC C4FF848

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