How to check how many sim cards are in your ID card. If someone has taken a SIM card using our Aadhaar card without our knowledge, it can sometimes be a problem for us in the future. We can easily check how many sims have been taken using our identity card. So, if we have a SIM that we are not using or someone else has taken it without our knowledge, we can report it and withdraw that number. You must check it out. Otherwise, if someone commits crimes using the number on our ID, it is our responsibility. First thing you need to do is click on the link below. Check How many Sim Cards in your ID Card On the next page enter the mobile number linked with your aadhar card and enter with otp. On the next page you will get all the sim numbers in your ID. We can block that number by clicking on the option to report numbers that we do not use or are not familiar with.