Who owns MAC prefix C4AD21?

C4AD21 is registered to MEDIAEDGE Corporation in the IEEE MA-L registry.

What devices use C4AD21?

Any network device with a MAC address starting C4:AD:21 was manufactured by or for MEDIAEDGE Corporation.

MA-L · OUI prefix

MEDIAEDGE Corporation

Any MAC address starting C4:AD:21 is registered to MEDIAEDGE Corporation in JP.

OUI prefix	C4AD21
Vendor	MEDIAEDGE Corporation
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	C4:AD:21:00:00:00

What this means

The IEEE assigned the MA-L block C4AD21 to MEDIAEDGE Corporation. 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 C4:AD:21, it is MEDIAEDGE Corporation hardware.

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