Who owns MAC prefix 443839?

443839 is registered to Cumulus Networks, inc in the IEEE MA-L registry.

What devices use 443839?

Any network device with a MAC address starting 44:38:39 was manufactured by or for Cumulus Networks, inc.

MA-L · OUI prefix

Cumulus Networks, inc

Any MAC address starting 44:38:39 is registered to Cumulus Networks, inc in US.

OUI prefix	443839
Vendor	Cumulus Networks, inc
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	44:38:39:00:00:00

What this means

The IEEE assigned the MA-L block 443839 to Cumulus Networks, 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 44:38:39, it is Cumulus Networks, inc hardware.

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