Who owns MAC prefix 0023D9?

0023D9 is registered to Banner Engineering in the IEEE MA-L registry.

What devices use 0023D9?

Any network device with a MAC address starting 00:23:D9 was manufactured by or for Banner Engineering.

MA-L · OUI prefix

Banner Engineering

Any MAC address starting 00:23:D9 is registered to Banner Engineering in US.

OUI prefix	0023D9
Vendor	Banner Engineering
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:23:D9:00:00:00

What this means

The IEEE assigned the MA-L block 0023D9 to Banner Engineering. 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 00:23:D9, it is Banner Engineering hardware.

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