How to Check my Airtel 5G/4G SIM Prepaid and Post paid Numbers. USSD CODE – "121"9# or "121"1# Check your Own Airtel Number – "282#, "121"9#, "140"1600# "121"9# "140"1600# "400"2"1"10# "140"175. "282# "141"123# © 2025 5G 4G LTE APN India. In this guide, we will talk about five different methods through which you can easily check your Airtel number . So, without wasting your time, let’s get straight away to these methods. In this quick tutorial, we’ve covered five easy methods to check your mobile number in Airtel, including using USSD codes, the Airtel Thanks app, customer care, phone settings (for Android users), and calling a friend . Here are the steps you need to follow: The first thing you need to do is insert an activated Airtel SIM card into your phone. Now restart the device. Open the Dialer app on your phone. A pop-up message will appear on the screen containing your Airtel mobile number .
