Who owns MAC prefix D428B2?

D428B2 is registered to ioBridge, Inc. in the IEEE MA-L registry.

What devices use D428B2?

Any network device with a MAC address starting D4:28:B2 was manufactured by or for ioBridge, Inc..

MA-L · OUI prefix

ioBridge, Inc.

Any MAC address starting D4:28:B2 is registered to ioBridge, Inc. in US.

OUI prefix	D428B2
Vendor	ioBridge, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	D4:28:B2:00:00:00

What this means

The IEEE assigned the MA-L block D428B2 to ioBridge, 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 D4:28:B2, it is ioBridge, Inc. hardware.

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