Android gets the mobile phone IMSI number

Android gets the mobile phone IMSI number

1. What is imsi?

The IMSI (International Mobile SubscriberIdentification Number) identifies different Mobile users. It is stored in SIM cards and can be used to distinguish valid information of Mobile users. The total length is no more than 15 characters, and 0 ~ 9. Among them, MCC is the country code of the mobile user, which accounts for three digits. China's MCC stipulates that it is 460. MNC is a mobile network number, which consists of up to two digits, MSIN is a mobile user identification code used to identify the mobile users in a mobile communication network.

MNC: Mobile Network Code, Mobile Network Code, 2 ~ The China Mobile system uses 00, 02, and 07, China Unicom's GSM system uses 01, China Telecom's CDMA system uses 03, and a typical IMSI number is 460030912121001;

2. Get the mobile phone imsi number

Public static String getImsi (Context context ){
TelephonyManager tm = (TelephonyManager) context. getSystemService (Context. TELEPHONY_SERVICE );
String _ imsi = tm. getSubscriberId ();
If (_ imsi! = Null &&! _ Imsi. equals ("") {
Return _ imsi;
}
Return "unknown ";
}

3,

Public static String getImsi (Context context ){
TelephonyManager tm = (TelephonyManager) context
. GetSystemService (Context. TELEPHONY_SERVICE );
String deviceid = tm. getDeviceId (); // obtain the unique ID of a smart device.
String te1 = tm. getLine1Number (); // obtain the local number
String imei = tm. getSimSerialNumber (); // obtain the serial number of the SIM card
String imsi = tm. getSubscriberId (); // obtain the user ID
If (imsi! = Null &&! Imsi. equals ("")){
Log. I ("test", "Get mobile phone information === Deviceid" + deviceid + "teleNum" + te1
+ "SimNUM" + imei + "UserId" + imsi );
Return imsi;
}
Return "unknown ";
}