Who owns MAC prefix D49C28?

D49C28 is registered to JayBird LLC in the IEEE MA-L registry.

What devices use D49C28?

Any network device with a MAC address starting D4:9C:28 was manufactured by or for JayBird LLC.

MA-L · OUI prefix

JayBird LLC

Any MAC address starting D4:9C:28 is registered to JayBird LLC in US.

OUI prefix	D49C28
Vendor	JayBird LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	D4:9C:28:00:00:00

What this means

The IEEE assigned the MA-L block D49C28 to JayBird LLC. 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 D4:9C:28, it is JayBird LLC hardware.

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