c3gIccId 1.3.6.1.4.1.9.9.661.1.3.1.1.3

This object indicates the Integrated Circuit Card ID (ICCID). The ICCID is defined by the ITU-T recommendation E.118. ICCIDs are stored in the SIM cards and are also engraved or printed on the SIM card body during a process called personalization.