Devices with MAC addresses that start with A4-44-D1 were manufactured by Wingtech Group (HongKong）Limited

Device Manufacturer
Wingtech Group (HongKong）Limited
Manufacturer Location
FLAT/RM 1903 19/F PODIUM PLAZA 5HANOI ROAD TSIM SHA TSUI
Hong Kong Hong Kong 999077
Estimated Devices using A4-44-D1
16,256,250
Estimated Total Devices From Mfg
81,281,250
Related MAC Addresses
54-14-73, 2C-57-31, B0-2A-1F, 14-16-9E