Devices with MAC addresses that start with AC-81-12 were manufactured by Gemtek Technology Co., Ltd.

Device Manufacturer
Gemtek Technology Co., Ltd.

Manufacturer Location
No. 1 Jen Ai Road Hsinchu Industrial Park Hukou, Hsinchu 30352 TAIWAN, REPUBLIC OF CHINA
Hsinchu TAIWAN 30352

Estimated Devices using AC-81-12
16,256,250

Estimated Total Devices From Mfg
195,075,000