Vietnam Datacommunications Company (VDC)
VNPT-CA
Head Office: Internet, Lot IIA, International village of Thang Long, Cau Giay Dist., Ha Noi, Viet Nam
Telephone: (84-4) 3793 1062 ; Fax: (84-4) 3793 0506
Website: www.vnpt-ca.vn

Viettel Corporation (Viettel)
VIETTEL-CA
Head Office: No 1 Giang Van Minh Str, Kim Ma ward, Ba Dinh Dist, Ha Noi, Viet Nam
Telephone: (84-4) 6255 6789 ; Fax: (84-4) 6299 6789
Website: www.viettel-ca.vn

Nacencomm Technologies Jsc
CA2-NACENCOMM
Head Office: 40 Phuong Mai Str., Dong Da Dist., Ha Noi, Viet Nam
Telephone: (84-4) 38520998 ; Fax: (84-4) 38520999
Website: www.nacencomm.com.vn

Bkav Sercurity Jsc
BKAV-CA
Head Office: Hitech Building, No 1 Dai Co Viet, Hai Ba Trung Dist., Ha Noi, Viet Nam
Telephone: (84-4) 3868 4757 ; Fax: (84-4) 3868 4755
Website: www.bkavca.vn

FPT Corporation
FPT-CA
Head Office: FPT Building, B2 plot, Duy Tan str., Cau Giay Dist., Ha Noi, Viet Nam
Telephone: (84-4) 7300 2222 ; Fax: (84-4) 3768 7410
Website: www.fptca.vn

CK Media
CK-CA
Head Office: 4/122 Dinh Cong str., Hoang Mai, Ha Noi
Telephone: (84-4) 3664 7888 ; Fax: (84-4) 3664 7889
Website: www.ckmedia.com.vn