Vendor name: U2S co.

MAC Prefix: C4:E1:7C

MAC Range: C4:E1:7C:00:00:00 - C4:E1:7C:FF:FF:FF

Type: MA-L

Address: 104-706, SK Ventium Building, 522, Dangjeong-Dong
　　　　　Gunpo-si Geonggi-do 435-776
　　　　　 KR