Who owns MAC prefix D40C9D?

D40C9D is registered to SiFly Aviation, Inc in the IEEE MA-L registry.

What devices use D40C9D?

Any network device with a MAC address starting D4:0C:9D was manufactured by or for SiFly Aviation, Inc.

MA-L · OUI prefix

SiFly Aviation, Inc

Any MAC address starting D4:0C:9D is registered to SiFly Aviation, Inc in US.

OUI prefix	D40C9D
Vendor	SiFly Aviation, Inc
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	D4:0C:9D:00:00:00

What this means

The IEEE assigned the MA-L block D40C9D to SiFly Aviation, Inc. 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 D4:0C:9D, it is SiFly Aviation, Inc hardware.

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