SIM Serial Number

SIM serial number on iPhone

To get SIM Card serial number on iPhone you don't have to install any additional software.

Go to Settings -> General -> About and look for field ICCID, this will be your phone SIM Card serial number.

Other option to get SIM Card serial number is to use iTunes. After connecting your phone, click Summary tab and look for Serial Number field

You can find more information about this topic on iPhone support page.

Check how to get SIM Card serial number on Android phones.