The simplest way to check your Vodafone (now Vi) phone number via USSD code is to dial *199# from your Vodafone SIM. You will receive a flash message displaying your mobile number on your screen—note it down before dismissing the message as it may disappear[1][2].
If 199# does not work, alternatives include *1112# or 555# depending on your region[1][4]. For some regional variants, especially in Maharashtra, *1112# is often used to check your Vodafone number[4].
As a backup, you can also call customer care by dialing 199 or 198 from your Vodafone/Vi number; follow the instructions to speak to a representative and ask for your number[1][2].