What devices use 1845B3B?

Any network device with a MAC address starting 18:45:B3:B was manufactured by or for Hangzhou CCRFID Microelectronic Co., Ltd..

MA-M · OUI prefix

Hangzhou CCRFID Microelectronic Co., Ltd.

Q: Who owns MAC prefix 1845B3B?

1845B3B is registered to Hangzhou CCRFID Microelectronic Co., Ltd. in the IEEE MA-M registry.

Any MAC address starting 18:45:B3:B is registered to Hangzhou CCRFID Microelectronic Co., Ltd. in CN.

OUI prefix	1845B3B
Vendor	Hangzhou CCRFID Microelectronic Co., Ltd.
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	18:45:B3:B:00:00:00

What this means

The IEEE assigned the MA-M block 1845B3B to Hangzhou CCRFID Microelectronic 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 18:45:B3:B, it is Hangzhou CCRFID Microelectronic Co., Ltd. hardware.

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