Who owns MAC prefix 001604?

001604 is registered to Sigpro in the IEEE MA-L registry.

What devices use 001604?

Any network device with a MAC address starting 00:16:04 was manufactured by or for Sigpro.

MA-L · OUI prefix

Sigpro

Any MAC address starting 00:16:04 is registered to Sigpro in US.

OUI prefix	001604
Vendor	Sigpro
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:16:04:00:00:00

What this means

The IEEE assigned the MA-L block 001604 to Sigpro. 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 00:16:04, it is Sigpro hardware.

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