Viettel Mobile (directly under Viettel Corp.): 032, 033, 034, 035, 036, 037, 038, 039, 096, 097, 098[2] MobiFone (directly under VMS): 070, 076, 077, 078, 079, 089, 090, 093[3] VinaPhone (directly under VNPT): 081, 082, 083, 084, 085, 086, 088, 091, 094[4] S-Fone (directly under CDMA S-Telecom): 095[5] Vietnamobile (ex-HT Mobile): 092, 052, 056, 058[6] Beeline (directly under G-Tel): 059, 099[7]