SystemTechno

Hangzhou System Technology CO., LTD — 2 praefixum OUI

2 praefixum OUI

Praefixum OUI	MAC Range
00:1D:A4	00:1D:A4:00:00:00 ~ 00:1D:A4:FF:FF:FF
90:15:64:70	90:15:64:70:00:00:00 ~ 90:15:64:70:FF:FF:FF