Skip to main content
    Tutorial📚 Data Loan Fundamentals

    USSD Codes Explained: How They Work on Indian Networks (2026)

    A technical look at how USSD codes function, why they're used for data loans, and tips for using them effectively.

    DataLoan Team4 minUpdated: 2 Nov 2026

    USSD Codes Explained

    USSD (Unstructured Supplementary Service Data) is a protocol used by GSM cellular networks to communicate with the service provider's computers. When you dial a code like *123#, you're using USSD.

    Why USSD for Data Loans?

  1. **No internet required**: Works even when your data is exhausted
  2. **Instant**: Real-time communication with the network
  3. **Universal**: Works on any phone (smartphone or feature phone)
  4. **Free**: USSD sessions don't cost money

    5. Common Data Loan USSD Codes (2026)

    ProviderCodePurpose
    Airtel*567*3#Data Loan
    Airtel*121#Balance & Services
    Vi*199*3#Data Loan
    Vi*111#Main Menu
    BSNL*511*7#Credit Loan

    USSD vs SMS vs App

  5. **USSD**: Fastest, works without internet, real-time
  6. **SMS**: Slower, one-way until reply
  7. **App**: Requires internet, more features

    8. Tips for Using USSD

  8. Wait for the full menu to load
  9. Don't press back while session is active
  10. Sessions timeout after 2 minutes
  11. Some codes vary by telecom circle
    12. USSD codesUSSD meaninghow USSD workstelecom codes India

    Related Articles

    What is a Data Loan? Complete Guide for Indian Mobile Users (2026)

    5 min

    Prepaid vs Postpaid: Who Can Get Data Loans in India? (2026)

    3 min

    Back to all articles