Devices with MAC addresses that start with 00-40-39 were manufactured by OPTEC DAIICHI DENKO CO., LTD.

Device Manufacturer
OPTEC DAIICHI DENKO CO., LTD.

Manufacturer Location
FIBER OPTICS & TELECOM. DIV.
JAPAN

Estimated Devices using 00-40-39
16,256,250

Estimated Total Devices From Mfg
16,256,250

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