Wintel VN Top Up: Digital Mobile Airtime and Data Reloads
Wintel (formerly Reddi, operating under the 055 prefix) is a mobile virtual network operator (MVNO) in Vietnam powered by VNPT’s national infrastructure. Whether you rely on Wintel prepaid SIM cards or eSIM profiles for unlimited daily 4G data, travel internet access, or local calling, maintaining an active balance is necessary to keep your service running without interruptions.
A digital Wintel reload card code allows you to add funds directly to your prepaid mobile balance. Once redeemed, your balance can be used to pay for monthly data packages, renew active bundles, extend SIM validity, or make standard voice calls and SMS across Vietnam.
How to Find Your Wintel Vietnam Phone Number
To manage your services, check balances, or top up your account, you need your 10-digit Vietnam mobile phone number starting with 055.

Follow these quick methods to locate your Wintel phone number:
- Check Your Phone Settings: - iOS (iPhone): Go to Settings > Phone > My Number. - Android: Go to Settings > About Phone > Status > Phone Number (or SIM Card Status).
- USSD Query: Open your phone dialer and enter
*101#or*088#and press the Call button. Your phone number and current main balance will appear on the display. - Physical SIM Packaging: If you purchased a physical starter pack, your 10-digit phone number is printed on the back of the plastic card holder.
- Official Wintel App: Open the Wintel app on your mobile device. Your active phone number is displayed at the top of the home dashboard.
How to Recharge Wintel (VN) Prepaid Mobile Online
Buying digital reload codes through BitTopup is fast, simple, and accessible from anywhere in the world.
- Select your required Wintel recharge denomination from the list.
- Verify the item details and proceed to checkout.
- Enter your contact email address to receive your order confirmation and code.
- Select your preferred payment method and complete the payment.
- Your digital Wintel card code and serial number will appear on your order screen and will also be sent to your email instantly.
Available Wintel Vietnam Denominations and Data Value
Wintel reload cards come in standard Vietnamese Dong (VND) denominations. Adding balance allows you to subscribe to popular data plans or maintain active line validity.
| Denomination (VND) | Typical Usage & Benefits | SIM Validity Extension |
|---|---|---|
| 10,000 VND | Emergency balance top-up, short SMS / local voice calls | +3 to +5 Days |
| 20,000 VND | Daily data add-on packs, standard local communications | +7 Days |
| 50,000 VND | Weekly unlimited data packages, standard balance booster | +30 Days |
| 100,000 VND | Popular 30-day unlimited data plan renewals (e.g., standard packages) | +60 Days |
| 200,000 VND | Multi-month plan renewals or high-allowance voice/data bundles | +90 Days |
| 500,000 VND | Long-term subscriptions, quarterly/biannual data maintenance | +180 to +360 Days |
Note: Exact data bundle costs and plan terms depend on active Wintel promotions at the time of renewal. Prices on checkout reflect current digital processing rates.
Step-by-Step Guide to Redeeming Your Wintel Reload Code
Once you receive your digital top-up PIN from BitTopup, redeem it on your mobile device using one of the methods below.
Method 1: USSD Direct Dial (Fastest)
- Open your smartphone’s Phone / Dialer app.
- Type the following USSD command:
text *100*CARD_PIN#(ReplaceCARD_PINwith the numeric redemption code provided in your BitTopup order). - Press the Call button.
- A pop-up notification will confirm: "Tai khoan cua quy khach da duoc nap..." showing your updated balance.
Method 2: Via the Official Wintel App
- Connect your device to Wi-Fi or mobile data.
- Open the Wintel app (available on Google Play Store and Apple App Store).
- Log in using your Wintel phone number via OTP.
- On the main home screen, tap Nạp cước / Nạp thẻ (Recharge).
- Select Thẻ cào (Scratch card / PIN code).
- Enter or paste your 12 to 14-digit card PIN code.
- Tap Xác nhận (Confirm) to credit your balance immediately.
Method 3: IVR Voice Call
- Dial
900or1800 556 888from your Wintel SIM card. - Press key
1to select balance recharge. - Input the digital card PIN followed by the
#key when prompted. - Listen to the automated confirmation message verifying the updated balance.
How to Check Wintel Vietnam Balance and Data Quota
Keep track of your spending and data usage using these commands:
- Check Main Account Balance: Dial
*101#and press Call. This displays your core credit balance and SIM expiration date. - Check Secondary / Promotional Balances: Dial
*102#and press Call. - Check Data Bundle Status via SMS: Send
KT DATAorTRACUUto555to receive an SMS breakdown of your remaining high-speed data allowance and expiration date. - Check via Wintel App: Log into the app to view real-time graphical meters showing daily data consumption, remaining validity days, and active package features.
Troubleshooting Common Wintel Card Redemption Errors
- Code Marked as Invalid: Carefully check the numbers entered. Ensure you are not confusing similar-looking digits (such as 0 and 8, or 1 and 7). Do not include spaces or dashes.
- Account Temporarily Locked for Top-Up: Entering an incorrect PIN 5 consecutive times triggers a temporary security lock on your SIM to prevent brute-force attempts. Wait 15 to 30 minutes, or contact Wintel customer care at
1800 556 888to unlock recharge functionality. - No Network Connection / USSD Failure: If your dialer returns a "Connection problem or invalid MMI code" error, verify that your SIM is connected to the network signal. If you are using dual SIM cards, ensure you are dialing from the active Wintel SIM slot.
- Balance Not Updating Immediately: Turn Airplane Mode on for 10 seconds and turn it off again to refresh your connection with the nearest VNPT transmission tower.
Safe and Secure Top-Up Standards
Protecting your mobile account and personal data is essential. When you purchase digital top-up cards on BitTopup:
- No Password Required: You never need to provide your Wintel account password, private portal logins, or OTP verification codes.
- Direct Code Delivery: You receive authentic reload PINs that you redeem directly on your own device.
- Encrypted Transactions: Every transaction is processed through verified, secure payment gateways.
Why Choose BitTopup for Wintel VN Recharges
BitTopup provides a smooth, reliable experience for users who need Wintel mobile credit:
- Instant Digital Delivery: Reload codes are generated directly on your screen and delivered to your inbox without delay.
- International Accessibility: Top up your Vietnam SIM card from abroad without needing a local Vietnamese domestic bank card.
- Multiple Secure Payment Options: Complete purchases safely using globally recognized payment methods.
- 24/7 Dedicated Support: Get prompt help anytime from our customer service team if you have questions regarding your order.
Frequently Asked Questions
What is a Wintel (VN) reload card code?
A Wintel reload card code is a digital PIN consisting of a numeric sequence. When redeemed on your Wintel SIM or eSIM, it adds the equivalent Vietnamese Dong (VND) face value directly to your mobile balance for calls, SMS, and data packages.
How do I redeem my Wintel recharge code on my mobile device?
The quickest way is to open your phone dialer, type *100*CARD_PIN# (replace CARD_PIN with the code received in your order), and press Call. You can also redeem the PIN inside the official Wintel app under the recharge section.
How do I check my active Wintel balance and remaining high-speed data?
To check your main balance, dial *101# and press Call. To check your active high-speed data balance, send an SMS with the text KT DATA to 555, or log into the Wintel mobile application.
Can I recharge a Wintel Vietnam prepaid SIM from overseas?
Yes. BitTopup allows travelers, expatriates, and overseas users to purchase digital Wintel cards using international payment methods, ensuring your SIM remains active and funded before you arrive in or while outside Vietnam.
Do Wintel digital top-up codes have an expiration date?
Yes, digital codes have a redemption validity window established upon generation. It is recommended to redeem your code onto your mobile account shortly after receiving your order.
What should I do if my Wintel recharge code is marked as invalid?
First, verify that every digit was entered correctly without extra spaces. If the error continues, check your dialer to ensure you are executing the USSD command from your Wintel SIM slot. If you still encounter problems, contact BitTopup customer support with your order number for immediate assistance.





















