Who owns MAC prefix 001777?

001777 is registered to Obsidian Research Corporation in the IEEE MA-L registry.

What devices use 001777?

Any network device with a MAC address starting 00:17:77 was manufactured by or for Obsidian Research Corporation.

MA-L · OUI prefix

Obsidian Research Corporation

Any MAC address starting 00:17:77 is registered to Obsidian Research Corporation.

OUI prefix	001777
Vendor	Obsidian Research Corporation
Registry	MA-L (24-bit, large block)
Example MAC	00:17:77:00:00:00

What this means

The IEEE assigned the MA-L block 001777 to Obsidian Research Corporation. 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 00:17:77, it is Obsidian Research Corporation hardware.

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