Mobifone Top Up: Instant Digital Card & Airtime Reload
Mobifone is one of the premier telecommunication networks in Vietnam, providing high-speed 4G and 5G mobile data, voice airtime, and digital services across the country. Whether you are living in Vietnam, traveling as a tourist, or supporting family and friends from abroad, buying a Mobifone digital prepaid scratch card code is the most flexible way to maintain mobile connectivity.
When you purchase a digital Mobifone card on BitTopup, you receive an authentic 12-digit or 14-digit recharge PIN instantly on your screen and via email. This digital voucher code allows you to reload your prepaid SIM balance immediately using standard USSD dial codes, purchase high-speed internet data packs, or fund supported gaming and digital payment accounts.
Available Mobifone Prepaid Denominations and Validity
Prepaid Mobifone SIM cards operate on account validity cycles that extend with every card top-up. The number of active days added depends on your specific prepaid plan (such as MobiQ or MobiCard) and the voucher value loaded.
The live checkout on BitTopup displays current pricing and available voucher face values:
| Card Face Value (VND) | Main Account Credit | Standard Validity Extension | Typical Usage |
|---|---|---|---|
| 10,000 VND | 10,000 VND | +2 Days | Quick SMS messages and short voice calls |
| 20,000 VND | 20,000 VND | +4 Days | Daily data add-on packs |
| 50,000 VND | 50,000 VND | +12 Days | Weekly 4G/5G data packages |
| 100,000 VND | 100,000 VND | +30 Days | Standard 30-day mobile data bundles |
| 200,000 VND | 200,000 VND | +70 Days | High-speed data and voice combo plans |
| 300,000 VND | 300,000 VND | +105 Days | Multi-month service extensions |
| 500,000 VND | 500,000 VND | +215 Days | Maximum balance reload and long-term validity |
Note: On MobiQ plans, adding any card denomination automatically grants 60 active days from the date of recharge, provided a chargeable action occurs within the active window.
How to Check Your Mobifone Phone Number and Account Balance
Before reloading or selecting your data plan, verify your current balance and SIM number using Mobifone automated USSD service codes.
Finding Your Mobifone Phone Number
- USSD Code: Open your phone keypad, dial
*0#, and press Call. Your 10-digit mobile number will appear on screen. - Interactive Voice Response: Dial
900and press key4to hear your account phone number and plan name.
Checking Account Balances
- Main Account Balance: Dial
*101#and press Call. This displays your primary VND balance and your SIM card expiration date. - Promotional & Bonus Balance: Dial
*102#and press Call. This reveals secondary balance pools used for on-net calls, SMS bonuses, and promotional credits. - Data Balance: Send an SMS with the message
KT DATAto999to receive an SMS summary of your remaining high-speed megabytes and package expiry timestamp.
Step-by-Step Guide: How to Recharge Mobifone Prepaid SIM with a Code
Redeeming your digital code from BitTopup takes only seconds directly from your mobile device:
- Obtain Your Code: Complete your order on BitTopup to access your digital PIN voucher.
- Open Dialer: Launch the default phone dialer on the mobile device containing your Mobifone SIM.
- Enter USSD Command: Type
*100*<PIN_CODE>#(For example, if your PIN is123456789012, type*100*123456789012#). - Press Call: Tap the call/send button.
- Confirmation: An automated flash screen and an official SMS from Mobifone will confirm your successful balance top-up and updated account validity.
Digital Voucher vs. Direct Phone Reload
Choosing a digital card PIN provides distinct benefits over direct airtime top-ups:* Zero Phone Number Entry Mistakes: You avoid the risk of sending funds to an incorrect phone number during checkout.* Gift & Store Flexibility: You can purchase codes in advance, save them for emergencies, or send the PIN code directly to friends or family in Vietnam.* Multi-Platform Use: Mobifone scratch card codes can also be redeemed across partner online payment portals and web games in Vietnam.
Uses of Mobifone Prepaid Cards: Airtime, 4G/5G Data, and Gaming
A Mobifone card code is a versatile balance instrument for digital services across Vietnam:
- Mobile Voice & SMS: Keep your phone active for incoming international OTPs, local domestic calls, and roaming verification.
- 4G/5G Mobile Internet Bundles: Once you load main balance credit, subscribe to popular Mobifone data plans (such as PT70, PT90, KC90, or NA90) by texting the package name to
999or789. - Online Gaming Top-Ups: Numerous regional game publishers and digital entertainment platforms in Vietnam accept Mobifone card PINs and serial numbers as direct account reload options.
Troubleshooting Common Mobifone Recharge Issues
- Error: Invalid Card Code (Mã thẻ không hợp lệ): Verify that you typed the exact numeric code without spaces or dashes. Ensure the USSD string begins with
*100*and ends with#. - SIM Locked After Multiple Failed Entries: Mobifone temporarily locks top-up permissions on a SIM card if an incorrect PIN is entered 5 consecutive times. To unlock, dial the Mobifone customer service hotline at
9090(from a Mobifone SIM) or+84 908 144 144(from external lines) and provide your SIM serial number to a representative. - Tourist SIM Card Activation: If you purchased a tourist SIM at an airport, ensure the telecom agent has registered and fully activated the SIM profile before you attempt to load top-up codes.
- International Roaming Balance: If you are outside Vietnam, you can still recharge your Mobifone SIM with a card code via
*100*PIN#as long as international roaming is enabled on your SIM card.
Why Buy Mobifone Cards on BitTopup
BitTopup provides a frictionless, transparent recharge experience for global customers, tourists, and expatriates:
- Instant On-Screen Delivery: Card PINs generate immediately upon payment confirmation, with a backup copy sent to your email.
- 100% Account Safety: You never need to share account passwords, log in through private apps, or give third parties access to your personal phone.
- Global Payment Processing: Pay conveniently from anywhere in the world using standard international payment methods and regional currencies.
- Transparent Pricing: Check exact real-time prices on the live checkout without unexpected service charges.
- Dedicated 24/7 Support: Our technical team is available around the clock to assist with order status, PIN validation, or redemption instructions.
Frequently Asked Questions
How do I check my MobiFone main balance and active balance?
Dial *101# and press Call on your mobile phone. This USSD command shows your main account balance (TK chinh) in VND and the exact date when your SIM balance expires. To view promotional balances and extra account credits, dial *102# and press Call.
How do I recharge my MobiFone prepaid SIM with a card code?
Open your phone dialer, type *100*<PIN_CODE># (replacing <PIN_CODE> with the code purchased on BitTopup), and press Call. You will receive an immediate SMS confirmation showing your updated balance.
How do I find out my MobiFone phone number?
Open your phone keypad and dial *0#, then tap Call. Your mobile phone number will appear directly on your screen. You can also dial 900 and press key 4 to hear your phone number read aloud.
How do I check my MobiFone data balance and package status?
Send a text message with the syntax KT DATA to 999. Mobifone will reply with an SMS detailing your active internet plan, remaining high-speed data quota, and expiration date.
Can I use a MobiFone card code to top up game accounts in Vietnam?
Yes. Many domestic Vietnamese gaming publishers and digital content platforms allow users to select Mobifone card payments. You simply enter the PIN code and serial number provided in your BitTopup order on the publisher's payment gateway.
What should I do if my MobiFone recharge PIN is marked invalid?
Double-check that all digits were entered correctly without extra spaces or symbols. Ensure you are using the full format *100*PIN#. If the error continues, check your BitTopup order history to confirm the exact code numbers or contact BitTopup 24/7 customer support for immediate verification.
