The SIM card number refers to a 20-digit number on the card (i.e. ICCID number).
has special meaning: the first 6 digits are the network code; the 7th digit is the service access number; the 8th digit is the function bit of the SIM card, generally 0, and 3 for prepaid SIM cards; the 9th, The 10th digit is the code of each province; the 11th and 12th digits are the year number; the 13th digit is the supplier code; the 14th to 19th digits are the user identification code; the 20th digit is the check digit.
To check the SIM card number of your local machine, you can try the following methods:
1. Call the customer service of the telecommunications company to check your local number;
2. Personal What system does the phone have? If it is Android, you can go to the system information. If there is a SIM card information, you can see your number;
3. Open the SIM card application of the phone and you can see it there. own number.
The above is the detailed content of What is the sim card number? How to check. For more information, please follow other related articles on the PHP Chinese website!

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