Who owns MAC prefix D42000D?

D42000D is registered to ZUUM in the IEEE MA-M registry.

What devices use D42000D?

Any network device with a MAC address starting D4:20:00:D was manufactured by or for ZUUM.

MA-M · OUI prefix

ZUUM

Any MAC address starting D4:20:00:D is registered to ZUUM in US.

OUI prefix	D42000D
Vendor	ZUUM
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	D4:20:00:D:00:00:00

What this means

The IEEE assigned the MA-M block D42000D to ZUUM. 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 D4:20:00:D, it is ZUUM hardware.

Other ZUUM prefixes

ZUUM holds 2 registered blocks in total.

8C1F64708

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