Who owns MAC prefix 4403771?

4403771 is registered to Atari, Inc. in the IEEE MA-M registry.

What devices use 4403771?

Any network device with a MAC address starting 44:03:77:1 was manufactured by or for Atari, Inc..

MA-M · OUI prefix

Atari, Inc.

Any MAC address starting 44:03:77:1 is registered to Atari, Inc. in US.

OUI prefix	4403771
Vendor	Atari, Inc.
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	44:03:77:1:00:00:00

What this means

The IEEE assigned the MA-M block 4403771 to Atari, 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 44:03:77:1, it is Atari, Inc. hardware.

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