Devices with MAC addresses that start with F4-49-EF were manufactured by EMSTONE

Device Manufacturer
EMSTONE
Manufacturer Location
#310, Ace Techno Tower 3rd, 38 Digital-ro-29-gil
Guro-Gu Seoul 08381
Estimated Devices using F4-49-EF
16,256,250
Estimated Total Devices From Mfg
16,256,250
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