Vendor name: Hantle System Co., Ltd.

MAC Prefix: 00:21:A7

MAC Range: 00:21:A7:00:00:00 - 00:21:A7:FF:FF:FF

Type: MA-L

Address: 481-10 Byucksan Digital Vally II, RM 1511
　　　　　Seoul City Seoul 153-783
　　　　　 KR