Devices with MAC addresses that start with 78-81-02 were manufactured by Sercomm Corporation.

Device Manufacturer
Sercomm Corporation.

Manufacturer Location
3F,No.81,Yu-Yih Rd.,Chu-Nan Chen
Miao-Lih Hsuan 115

Estimated Devices using 78-81-02
16,256,250

Estimated Total Devices From Mfg
195,075,000