Who owns MAC prefix F420550?

F420550 is registered to AsicFlag in the IEEE MA-M registry.

What devices use F420550?

Any network device with a MAC address starting F4:20:55:0 was manufactured by or for AsicFlag.

MA-M · OUI prefix

AsicFlag

Any MAC address starting F4:20:55:0 is registered to AsicFlag in CN.

OUI prefix	F420550
Vendor	AsicFlag
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	F4:20:55:0:00:00:00

What this means

The IEEE assigned the MA-M block F420550 to AsicFlag. 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 F4:20:55:0, it is AsicFlag hardware.

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