Who owns MAC prefix 000377?

000377 is registered to Gigabit Wireless in the IEEE MA-L registry.

What devices use 000377?

Any network device with a MAC address starting 00:03:77 was manufactured by or for Gigabit Wireless.

MA-L · OUI prefix

Gigabit Wireless

Any MAC address starting 00:03:77 is registered to Gigabit Wireless in US.

OUI prefix	000377
Vendor	Gigabit Wireless
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:03:77:00:00:00

What this means

The IEEE assigned the MA-L block 000377 to Gigabit Wireless. 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 00:03:77, it is Gigabit Wireless hardware.

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