Subscriber Identity Module - Wikipedia, the free encyclopedia より引用 Each SIM is internationally identified by its ICC-ID. ICC-IDs are stored in the SIM cards and are also engraved or printed on the SIM card body during a process called personalization. The ICC-ID is defined by the ITU-T recommendation E.118.[9] According to E.118 the number is up to 19 digits long including a single check digit cal