Devices with MAC addresses that start with 1C-3D-E7 were manufactured by Sigma Koki Co.,Ltd.

Device Manufacturer
Sigma Koki Co.,Ltd.

Manufacturer Location
1-19-9 Midori
Sumida-ku Tokyo 130-0021

Estimated Devices using 1C-3D-E7
16,256,250

Estimated Total Devices From Mfg
16,256,250

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