Who owns MAC prefix 34D7B4?

34D7B4 is registered to Tributary Systems, Inc. in the IEEE MA-L registry.

What devices use 34D7B4?

Any network device with a MAC address starting 34:D7:B4 was manufactured by or for Tributary Systems, Inc..

MA-L · OUI prefix

Tributary Systems, Inc.

Any MAC address starting 34:D7:B4 is registered to Tributary Systems, Inc. in US.

OUI prefix	34D7B4
Vendor	Tributary Systems, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	34:D7:B4:00:00:00

What this means

The IEEE assigned the MA-L block 34D7B4 to Tributary Systems, 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 34:D7:B4, it is Tributary Systems, Inc. hardware.

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