Who owns MAC prefix 3009F9C?

3009F9C is registered to Honeywell in the IEEE MA-M registry.

What devices use 3009F9C?

Any network device with a MAC address starting 30:09:F9:C was manufactured by or for Honeywell.

MA-M · OUI prefix

Honeywell

Any MAC address starting 30:09:F9:C is registered to Honeywell in US.

OUI prefix	3009F9C
Vendor	Honeywell
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	30:09:F9:C:00:00:00

What this means

The IEEE assigned the MA-M block 3009F9C to Honeywell. 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 30:09:F9:C, it is Honeywell hardware.

Other Honeywell prefixes

Honeywell holds 8 registered blocks in total.

00226A 004084 58FCC8 70B3D59A7 70B3D5F4D 70B3D5F70 C4EFDA

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