To check your Airtel number, you can use USSD codes, Airtel Thanks App, or call customer care. Here are the steps to check your Airtel number using USSD code:

• Dial *282# from your Airtel sim-enabled device.
• Within a few seconds, you will receive a pop-up message on your phones screen showing your Airtel mobile number.

Alternatively, you can call customer care by dialing 121 or 198 from your registered Airtel mobile number and request the agent to read out your digits. You can also check your Airtel number on the SIM card pack or any related documents, where your mobile number might be printed on them.

Its important to note that every network company provides its own unique USSD codes to its customers, so you should check with Airtel for their specific codes.