Devices with MAC addresses that start with 28-3F-69 were manufactured by Sony Mobile Communications Inc

Device Manufacturer
Sony Mobile Communications Inc

Manufacturer Location
4-12-3 Higashi – Shinagawa
Shinagawa-ku Tokyo 140-0002

Estimated Devices using 28-3F-69
16,256,250

Estimated Total Devices From Mfg
991,631,250