ICCID indicates the identity of the integrated circuit card. Chinese is the identification code of integrated circuit card, that is, the card number of SIM card in mobile phone, and each card number is unique.

As the unique identification number of IC card, ICCID consists of 20 digits. The encoding format is: xxxxxxxx0x0mfsygxxxxxxxxxxxxxxxxxxxx.

The first six operator codes:

China Mobile: 898600; 898602; 898604; 898607 。

The number of China Unicom is 89860 1, 898606 and 898609.

China Telecom 898603.

Extended data

The iccid number is printed on the SIM card of the mobile phone and the card holder. If you can't view it due to card cutting and wear, Unicom users can go to the business hall where the number belongs with the original valid ID card.

After real-name registration, prepaid users can only change their cards in Unicom's own business hall. Business personnel must confirm the authenticity of the SIM/USIM card by checking the ICCID card number or calling the on-site card exchange phone number.

Baidu encyclopedia -iccid