Devices with MAC addresses that start with A4-81-7A were manufactured by CIG SHANGHAI CO LTD

Device Manufacturer
CIG SHANGHAI CO LTD
Manufacturer Location
5th Floor, Building 8 No 2388 Chenhang Road
SHANGHAI 201114
Estimated Devices using A4-81-7A
16,256,250
Estimated Total Devices From Mfg
32,512,500
Related MAC Addresses
EC-84-B4