Devices with MAC addresses that start with B4-28-F1 were manufactured by E-Prime Co., Ltd.

Device Manufacturer
E-Prime Co., Ltd.
Manufacturer Location
Rm1207, Kolon Science Valley, 811,
Seoul 152050
Estimated Devices using B4-28-F1
16,256,250
Estimated Total Devices From Mfg
16,256,250
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