Who owns MAC prefix ACEF920?

ACEF920 is registered to CEER NATIONAL AUTOMOTIVE COMPANY in the IEEE MA-M registry.

What devices use ACEF920?

Any network device with a MAC address starting AC:EF:92:0 was manufactured by or for CEER NATIONAL AUTOMOTIVE COMPANY.

MA-M · OUI prefix

CEER NATIONAL AUTOMOTIVE COMPANY

Any MAC address starting AC:EF:92:0 is registered to CEER NATIONAL AUTOMOTIVE COMPANY in SA.

OUI prefix	ACEF920
Vendor	CEER NATIONAL AUTOMOTIVE COMPANY
Registry	MA-M (28-bit, medium block)
Country	SA
Example MAC	AC:EF:92:0:00:00:00

What this means

The IEEE assigned the MA-M block ACEF920 to CEER NATIONAL AUTOMOTIVE COMPANY. 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 AC:EF:92:0, it is CEER NATIONAL AUTOMOTIVE COMPANY hardware.

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