Who owns MAC prefix 4C65A81?

4C65A81 is registered to Beijing Bluehalo Internet Inc. in the IEEE MA-M registry.

What devices use 4C65A81?

Any network device with a MAC address starting 4C:65:A8:1 was manufactured by or for Beijing Bluehalo Internet Inc..

MA-M · OUI prefix

Beijing Bluehalo Internet Inc.

Any MAC address starting 4C:65:A8:1 is registered to Beijing Bluehalo Internet Inc. in CN.

OUI prefix	4C65A81
Vendor	Beijing Bluehalo Internet Inc.
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	4C:65:A8:1:00:00:00

What this means

The IEEE assigned the MA-M block 4C65A81 to Beijing Bluehalo Internet Inc.. 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 4C:65:A8:1, it is Beijing Bluehalo Internet Inc. hardware.

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