What is a 3G Viettel Code (VN) Top Up and Supported Data Packages
A 3G Viettel Code (VN) is a prepaid digital data voucher designed for subscribers on the Viettel Vietnam mobile network. Instead of recharging standard voice credit to your main balance, a Viettel data PIN directly credits high-speed internet volume to your SIM card. These data vouchers work on all data-capable Viettel SIMs across 3G, 4G, and 5G connections throughout Vietnam.
Viettel offers digital data cards across various data quotas and validity periods. Whether you need a short-term burst of gigabytes for daily commuting, a multi-day pass for regional travel, or a supplementary monthly quota package, Viettel data vouchers activate instantly without altering your ongoing mobile subscriptions or recurring monthly voice plans.
Viettel 3G Data Code Denominations, Quotas, and Validity Periods
Viettel provides multiple data voucher tiers to match varying bandwidth requirements. The data volume activates the moment you successfully submit your recharge PIN to the network.
| Voucher Package | Typical Data Quota | Validity Period | Primary Activation Syntax |
|---|---|---|---|
| Short-Term Daily | 1 GB – 2 GB | 24 Hours – 3 Days | SMS: NAP [PIN] to 191 |
| Weekly Pass | 3 GB – 7 GB | 7 Days | SMS: NAP [PIN] to 191 |
| Monthly Boost | 5 GB – 15 GB | 30 Days | SMS: NAP [PIN] to 191 |
| High-Volume Card | 20 GB+ | 30 Days – 90 Days | SMS: NAP [PIN] to 191 / My Viettel |
Note: Exact data allocations, campaign bonuses, and live retail prices are displayed directly on the BitTopup checkout selection screen before payment.
How to Check Your Viettel SIM Details and Status
Before ordering your digital voucher, confirm that your SIM card is an active Viettel line registered within Vietnam. Digital data voucher codes cannot activate on expired, locked, or non-Viettel SIMs.
Follow these quick mobile prompts to verify your line details:1. Open your phone dialer on the device running the Viettel SIM.2. Dial *101# and press Call to verify that your account status is active and not barred for two-way communication.3. Dial *098# and press Call to view your active mobile number and check current registered promotions.4. Call Viettel's customer hotline at 198 (or +84 989 198 198 from international connections) if you are unsure about your line's activation state.
Step-by-Step Guide: How to Buy 3G Viettel Code Online on BitTopup
Ordering your digital Viettel voucher on BitTopup takes only a few quick steps:
- Select Your Package: Browse the available 3G Viettel Code (VN) denominations on the product page and pick your required data volume.
- Enter Contact Details: Provide a valid email address where your digital code and purchase receipt will be sent.
- Select Payment Option: Choose your preferred secure payment method from the available checkout options.
- Complete Checkout: Review your order summary and finalize the payment.
- Receive Your Code: Your digital PIN code displays immediately on your order confirmation screen and delivers straight to your email inbox.
How to Redeem Your Viettel Data Code on Your Mobile Device
Once you receive your digital PIN from BitTopup, apply the code to your Viettel phone number using one of the official carrier methods below:
Method 1: SMS Activation (Recommended)
- Open your mobile messaging app.
- Create a new message with the text:
NAP [PIN](replace[PIN]with the actual numeric code you received from BitTopup, without brackets). - Send the message to 191.
- Wait for a confirmation SMS from 191 verifying that the data quota has been credited to your line.
Method 2: My Viettel Application
- Open and log in to the My Viettel app on your iOS or Android device.
- Tap the Recharge / Nạp Cước section on the main dashboard.
- Select Data Scratch Card / Nạp Thẻ Data.
- Enter or paste your digital PIN and confirm the submission.
Checking Remaining Viettel Data Balance and Quota Expiration Rules
Monitoring your data usage ensures uninterrupted connectivity while browsing or streaming in Vietnam.
- Check Balance via SMS: Text
KTTKto 191. You will receive an immediate automated reply detailing your remaining high-speed megabytes and the exact expiration timestamp. - Check Balance via App: Open the My Viettel application home screen to view a real-time visual breakdown of your active data packages.
- Data Expiration Policy: Viettel data vouchers operate on a fixed validity schedule (e.g., 24 hours, 7 days, or 30 days from activation). When the validity window ends, any unused data from the voucher expires and does not roll over to subsequent billing cycles unless stated by an active recurring primary plan.
- Data Priority: High-speed voucher data is consumed prior to standard base-plan data allowances.
Important Compatibility Requirements for Viettel Vietnam SIMs
Keep the following restrictions in mind when purchasing a 3G Viettel Code (VN):
- Network Restriction: These codes work strictly with Viettel Vietnam SIM cards. They are not compatible with Vinaphone, Mobifone, Vietnamobile, or international carrier networks.
- SIM Status: Your SIM must be activated and unblocked. If your SIM card is blocked for one-way or two-way service due to overdue fees or missing KYC registration, data vouchers cannot be processed until the line is restored.
- Hardware Requirements: Your mobile device must support standard 3G, 4G LTE, or 5G mobile data bands and have cellular data enabled with the default Viettel APN settings (
v-internet).
Why Recharge 3G Viettel Codes Securely on BitTopup
- Instant Digital Delivery: Digital PIN codes are generated and shown on-screen immediately after payment confirmation, giving you internet access without delay.
- Total Account Security: You never have to provide your SIM password, personal credentials, or OTP codes. You receive the raw digital voucher code to redeem privately on your phone.
- Global & Local Checkout Options: BitTopup accommodates convenient payment methods, making mobile data recharges straightforward for international travelers and local residents alike.
- 24/7 Customer Support: Dedicated support specialists are available around the clock to assist you with order processing, code inquiries, and redemption questions.
Frequently Asked Questions (FAQ)
How do I redeem my 3G Viettel Code on my phone?
Send an SMS containing NAP [PIN] to 191, replacing [PIN] with the digital voucher code you received from BitTopup. Alternatively, enter the PIN inside the My Viettel mobile application under the data recharge menu.
Can I use a 3G Viettel Code on an international or roaming SIM card?
No. These vouchers work exclusively on native Viettel Vietnam prepaid and postpaid SIM cards operating on the domestic Viettel mobile network.
How do I check my remaining Viettel data balance after recharging?
Send an SMS with the message KTTK to 191 or log into the My Viettel app on your device to view your active data allowances and expiration dates.
Does unused data roll over after the package validity period expires?
No. Data allowances from digital vouchers expire at the end of their stated validity period (e.g., 24 hours, 7 days, or 30 days). Unused megabytes do not roll over.
What should I do if my 3G Viettel recharge code returns an invalid error?
Double-check that you entered the PIN digits accurately with no extra spaces. Confirm that you sent the message to 191 using the syntax NAP [PIN]. If the issue persists, verify that your SIM is unblocked by dialing *101#, or contact BitTopup customer support with your order ID for swift assistance.
Do I need to share my phone password to buy a Viettel code on BitTopup?
No. BitTopup only delivers the official digital PIN code. You never need to share your phone passwords, SIM PINs, or carrier account logins.
