Devices with MAC addresses that start with 28-DB-81 were manufactured by Shanghai Guao Electronic Technology Co., Ltd

Device Manufacturer
Shanghai Guao Electronic Technology Co., Ltd
Manufacturer Location
No.6, Alley 1225 TongPu Road,
Shanghai 200333
Estimated Devices using 28-DB-81
16,256,250
Estimated Total Devices From Mfg
16,256,250
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