Sim Cell Info is a utility for Android devices that allows you to view information about the connected SIM cards and the network signal strength. You can also see the list of your nearby cell towers and the name of the carrier that is currently active. This utility is designed to be used by the users, so they can choose which carrier to use and what network to connect to.

In order to get the most accurate information, you need to make sure that you are connected to the Internet. If you are not connected to the Internet, you will not be able to view the information that you need.