NationalRail

Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd. — 2 praefixum OUI

2 praefixum OUI

Praefixum OUI	MAC Range
C0:27:B9	C0:27:B9:00:00:00 ~ C0:27:B9:FF:FF:FF
C0:53:36	C0:53:36:00:00:00 ~ C0:53:36:FF:FF:FF