Vendor name: Thing-talk Wireless Communication Technologies Corporation Limited

MAC Prefix: B4:5C:A4

MAC Range: B4:5C:A4:00:00:00 - B4:5C:A4:FF:FF:FF

Type: MA-L

Address: 498 Guo Shou Jing Road, Suite 10402
　　　　　Shanghai 201203
　　　　　 CN