Who owns MAC prefix 001112?

001112 is registered to Honeywell CMSS in the IEEE MA-L registry.

What devices use 001112?

Any network device with a MAC address starting 00:11:12 was manufactured by or for Honeywell CMSS.

MA-L · OUI prefix

Honeywell CMSS

Any MAC address starting 00:11:12 is registered to Honeywell CMSS in US.

OUI prefix	001112
Vendor	Honeywell CMSS
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:11:12:00:00:00

What this means

The IEEE assigned the MA-L block 001112 to Honeywell CMSS. 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 00:11:12, it is Honeywell CMSS hardware.

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