Vendor name: Beijing HuaDa ZhiBao Electronic System Co.,Ltd.

MAC Prefix: D4:74:1B

MAC Range: D4:74:1B:00:00:00 - D4:74:1B:FF:FF:FF

Type: MA-L

Address: No.1 Gaojiayuan,Chaoyang District,Beijing,China
　　　　　Beijing Beijing 100015
　　　　　 CN