What devices use 840F45?

Any network device with a MAC address starting 84:0F:45 was manufactured by or for Shanghai GMT Digital Technologies Co., Ltd.

MA-L · OUI prefix

Shanghai GMT Digital Technologies Co., Ltd

Q: Who owns MAC prefix 840F45?

840F45 is registered to Shanghai GMT Digital Technologies Co., Ltd in the IEEE MA-L registry.

Any MAC address starting 84:0F:45 is registered to Shanghai GMT Digital Technologies Co., Ltd in CN.

OUI prefix	840F45
Vendor	Shanghai GMT Digital Technologies Co., Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	84:0F:45:00:00:00

What this means

The IEEE assigned the MA-L block 840F45 to Shanghai GMT Digital Technologies 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 84:0F:45, it is Shanghai GMT Digital Technologies Co., Ltd hardware.

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