Here is how to Know Your Airtel Phone Number;
1. Dial *100# on with your Airtel line and enter 3 for Manage My Account.
2. In the next menu enter 1 for Number & Balance.
3. You should receive a text message with your Airtel phone number and current balance.
Now that you’ve confirmed your number, make sure to memorise it or write it somewhere. You could also save it in your contacts.