Forgetting your Airtel mobile number is a common occurrence, but with these easy and efficient methods, you can quickly retrieve it. Whether you prefer USSD codes, the Airtel Thanks app, or contacting customer care, there’s a solution that suits everyone. We would like to show you a description here but the site won’t allow us. Here's what you should do to check your Airtel mobile number. Dial 121 from your phone's keypad. Follow the assistant, who will be an IVR, and select numbers based on your needs. Here are the many USSD dial codes you can use to inquire about Airtel's services. You can also recharge your mobile number using this application. Besides, this app also provides some additional offers from their side. Method 3 How can I Check my Airtel Mobile Number via Customer Care? Know that you can also call the Airtel customer care support team by dialling 121 or 198 from your mobile phone.