Vietnam · Telecom, Internet & Apps

Viettel

Viettel is Vietnam's largest mobile operator, offering the widest network coverage in the country alongside online self-service and top-up options.

What it helps with

A local SIM with lots of dataViettel tourist SIMs give large data allowances for a month at a low price.
A Vietnamese number for apps and callsA local number receives SMS codes for Zalo, MoMo and delivery apps and calls from drivers.
Topping up and changing packagesData packages can be renewed by SMS, in the app or at stores.

About Viettel

As a state-owned operator with the largest subscriber base and network footprint in Vietnam, Viettel offers particularly strong coverage in rural and remote areas where other operators may be weaker, alongside standard prepaid tourist SIM options.

Key Features

Widest Network Coverage: The most extensive network coverage across Vietnam, including rural and mountainous areas.
Tourist SIM Packages: Prepaid SIMs bundled with data, calls, and texts, available at airports and stores.
Self-Service App: Check balance, top up, and manage your plan through the My Viettel app.
Online Top-Up: Add credit to your line using a bank card or e-wallet.

How to Get Started

Buy a Viettel tourist SIM at the airport or any Viettel store, bringing your passport.
Insert the SIM and follow the activation instructions provided in-store.
Download the My Viettel app to check balance and top up.
Top up online or at any authorized retailer as needed.

Before you use it

Sign-up: A passport is required: the SIM must be registered in your name with a photo, and you can check the registration by texting TTTB to 1414.
Fees: Airport counters charge about US$10–13 for tourist SIMs, while official stores in town start at about US$6.
Good to know: Viettel has the widest coverage in mountains and rural areas such as Ha Giang and the Mekong Delta.

English available

Frequently Asked Questions

Does Viettel work with a foreign bank card in Vietnam?: Not reliably - a foreign card may be declined. Check the notice above, or plan to use a local payment method.
Is Viettel available in English?: Yes, Viettel has an English-language interface.
Do I need a local phone number to use Viettel?: No, an international phone number generally works for Viettel.
Do I need local ID or residency for Viettel?: No, Viettel doesn't require local ID or residency for visitors.
Where can I use Viettel?: iOS · Android · Web
How much does Viettel cost?: 30-day tourist SIM with 60 GB for 200,000 VND (~US$7.70, 2026)