Devices with MAC addresses that start with 00-11-81 were manufactured by InterEnergy Co.Ltd,

Device Manufacturer
InterEnergy Co.Ltd,
Manufacturer Location
3F Shinyokohama Bosei Bldg.
Yokohama city Kanagawa 222-0033
Estimated Devices using 00-11-81
16,256,250
Estimated Total Devices From Mfg
16,256,250
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