Individual can not query, you can call the operator's customer service to query. Or the user with the ID card directly to the operator's network to query the iccid number. ICCID: Integrate circuit card identity (solidified in mobile phone SIM card) ICCID is the unique identification number of an IC card. It consists of 20 digits in the format of XXXXXX 0MFSS YYGXX XXXXX. The first six operator codes are as follows: 898600 for China Mobile; 898602, China Unicom: 898601, China Telecom 898603