Vendor name: EMSTONE

MAC Prefix: F4:49:EF

MAC Range: F4:49:EF:00:00:00 - F4:49:EF:FF:FF:FF

Type: MA-L

Address: #310, Ace Techno Tower 3rd, 38 Digital-ro-29-gil
　　　　　Guro-Gu Seoul 08381
　　　　　 KR