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.
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