If you've just bought a new Airtel 5G SIM or switched from a 4G SIM, you need to activate it. This activation process is simple and can be done via SMS, online portal, or an Airtel store.

Sometimes you might not be able to use Airtel 4G on your 4G ready smartphone. In this case, the problem can be with your SIM card. It only means that you are still using only 2G or 3G SIM.

For new users, it might take some time to remember their SIM number. In case you have forgotten your airtel number or do not know your airtel number, you might want to get it. Here are the ...