Who owns MAC prefix 001B39?

001B39 is registered to Proxicast in the IEEE MA-L registry.

What devices use 001B39?

Any network device with a MAC address starting 00:1B:39 was manufactured by or for Proxicast.

MA-L · OUI prefix

Proxicast

Any MAC address starting 00:1B:39 is registered to Proxicast in US.

OUI prefix	001B39
Vendor	Proxicast
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:1B:39:00:00:00

What this means

The IEEE assigned the MA-L block 001B39 to Proxicast. 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 00:1B:39, it is Proxicast hardware.

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