Who owns MAC prefix 005091?

005091 is registered to NETACCESS, INC. in the IEEE MA-L registry.

What devices use 005091?

Any network device with a MAC address starting 00:50:91 was manufactured by or for NETACCESS, INC..

MA-L · OUI prefix

NETACCESS, INC.

Any MAC address starting 00:50:91 is registered to NETACCESS, INC. in US.

OUI prefix	005091
Vendor	NETACCESS, INC.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:50:91:00:00:00

What this means

The IEEE assigned the MA-L block 005091 to NETACCESS, 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 00:50:91, it is NETACCESS, INC. hardware.

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