What devices use 5491AFD?

Any network device with a MAC address starting 54:91:AF:D was manufactured by or for Ningbo Joynext Technology Corporation.

MA-M · OUI prefix

Ningbo Joynext Technology Corporation

Q: Who owns MAC prefix 5491AFD?

5491AFD is registered to Ningbo Joynext Technology Corporation in the IEEE MA-M registry.

Any MAC address starting 54:91:AF:D is registered to Ningbo Joynext Technology Corporation in CN.

OUI prefix	5491AFD
Vendor	Ningbo Joynext Technology Corporation
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	54:91:AF:D:00:00:00

What this means

The IEEE assigned the MA-M block 5491AFD to Ningbo Joynext Technology 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 54:91:AF:D, it is Ningbo Joynext Technology Corporation hardware.

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