Vendor name: S-Information Technolgy, Co., Ltd.

MAC Prefix: 00:19:E9

MAC Range: 00:19:E9:00:00:00 - 00:19:E9:FF:FF:FF

Type: MA-L

Address: Sungwoo Bldg, 717-3 Suseo-dong,
　　　　　Seoul 135-884
　　　　　 KR