: Visit the Airtel International Roaming page to select specific ISD (International Subscriber Dialing) packs or roaming bundles. You will typically need to enter your 10-digit mobile number, choose a plan, and complete payment via credit/debit card or net banking.

: Digital versions bought online are usually delivered via email for immediate use. Regional Availability

: If you are abroad and need to recharge an Indian Airtel SIM for international calls, platforms like Ding , BOSS Revolution , and PhoneIndia allow you to send airtime or specific calling bundles from overseas. How Calling Cards Work

While Airtel India focuses on roaming packs, other branches like or Airtel Nigeria offer specific international bundles through USSD menus (e.g., dialing *146# or *789# ) that can be purchased using your main account balance. International Call Charges, ISD Calling Rates - Airtel

: A Personal Identification Number to authenticate your credit.

: A toll-free or local number to dial from your phone.