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Mobile networks and carriers in Vietnam use 2 GSM bands and 2 UMTS bands. Find out if your unlocked phone or mobile device will work in Vietnam. See the tables below for details.

Will your phone or mobile device work in Vietnam?

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Select a carrier to see frequency details
Name # of frequency bands in use
MobiFone 3
Viettel Mobile 4
Vinaphone 3

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Frequencies in use


Name Interface
900 (E-GSM) GSM
1800 (DCS) GSM


Name Interface
B1 (2100) UMTS
B2 (1900 PCS) UMTS