Who owns MAC prefix 8C1F6412B?

8C1F6412B is registered to Beijing Tongtech Technology Co., Ltd. in the IEEE MA-S registry.

What devices use 8C1F6412B?

Any network device with a MAC address starting 8C:1F:64:12:B was manufactured by or for Beijing Tongtech Technology Co., Ltd..

MA-S · OUI prefix

Beijing Tongtech Technology Co., Ltd.

Any MAC address starting 8C:1F:64:12:B is registered to Beijing Tongtech Technology Co., Ltd. in CN.

OUI prefix	8C1F6412B
Vendor	Beijing Tongtech Technology Co., Ltd.
Registry	MA-S (36-bit, small block)
Country	CN
Example MAC	8C:1F:64:12:B:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F6412B to Beijing Tongtech Technology Co., Ltd.. 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 8C:1F:64:12:B, it is Beijing Tongtech Technology Co., Ltd. hardware.

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