Vendor name: SK Networks Service CO., LTD.

MAC Prefix: 40:D4:BD

MAC Range: 40:D4:BD:00:00:00 - 40:D4:BD:FF:FF:FF

Type: MA-L

Address: 120, Jangan-ro, Jangan-gu
　　　　　Suwon-si Gyeonggi-do 16312
　　　　　 KR