Devices with MAC addresses that start with 00-50-7F were manufactured by DrayTek Corp.

Device ManufacturerDrayTek Corp.
26, Fushing Rd.
Hsinchu Hukou 303
Estimated Devices with 00-50-7F16256250
Estimated Total Devices From Mfg48768750
Other MAC Addresses14-49-BC, 00-1D-AA
Address Examples