android - How to get Owner/sim number and Network Mode

Android - How to get Owner/sim number and Network Mode

To get the owner's SIM number (ICCID) and network mode in an Android application, you can use the TelephonyManager class. Here's how to do it:

Step 1: Add Permissions

First, make sure to add the required permissions in your AndroidManifest.xml:

<uses-permission android:name="android.permission.READ_PHONE_STATE"/> <uses-permission android:name="android.permission.READ_PHONE_NUMBERS"/>

Step 2: Request Permissions (for Android 6.0 and above)

For devices running Android 6.0 (API level 23) and above, you need to request permissions at runtime:

import android.Manifest; import android.content.pm.PackageManager; import android.os.Bundle; import android.telephony.TelephonyManager; import android.widget.Toast; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; public class MainActivity extends AppCompatActivity { private static final int PERMISSION_REQUEST_CODE = 1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE, Manifest.permission.READ_PHONE_NUMBERS}, PERMISSION_REQUEST_CODE); } else { getSimDetails(); } } private void getSimDetails() { TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); // Get SIM number (ICCID) String simNumber = telephonyManager.getSimSerialNumber(); // Display the SIM number Toast.makeText(this, "SIM Number: " + simNumber, Toast.LENGTH_SHORT).show(); // Get network mode (optional) int networkType = telephonyManager.getNetworkType(); String networkMode = getNetworkTypeString(networkType); // Display the network mode Toast.makeText(this, "Network Mode: " + networkMode, Toast.LENGTH_SHORT).show(); } private String getNetworkTypeString(int networkType) { switch (networkType) { case TelephonyManager.NETWORK_TYPE_GPRS: return "GPRS"; case TelephonyManager.NETWORK_TYPE_EDGE: return "EDGE"; case TelephonyManager.NETWORK_TYPE_LTE: return "LTE"; case TelephonyManager.NETWORK_TYPE_HSPA: return "HSPA"; // Add other cases as needed default: return "Unknown"; } } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); if (requestCode == PERMISSION_REQUEST_CODE) { if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { getSimDetails(); } else { Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show(); } } } }

Summary

  1. Permissions: Add READ_PHONE_STATE and READ_PHONE_NUMBERS permissions in the manifest.
  2. Runtime Permissions: Request permissions at runtime for Android 6.0 and above.
  3. TelephonyManager: Use TelephonyManager to get the SIM number (ICCID) and network type.

This code retrieves the SIM number and the network mode and displays them in a Toast message.

Examples

  1. How to retrieve the SIM card number in Android?

    • Description: Use TelephonyManager to access the SIM serial number.
    • Code:
      TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); String simSerialNumber = telephonyManager.getSimSerialNumber(); Log.d("SIM Number", simSerialNumber);

  2. How to get the phone number associated with the SIM card?

    • Description: Access the phone number using TelephonyManager.
    • Code:
      String phoneNumber = telephonyManager.getLine1Number(); Log.d("Phone Number", phoneNumber);

  3. How to check if SIM is ready in Android?

    • Description: Verify the SIM state using TelephonyManager.
    • Code:
      int simState = telephonyManager.getSimState(); if (simState == TelephonyManager.SIM_STATE_READY) { Log.d("SIM State", "SIM is ready"); } else { Log.d("SIM State", "SIM is not ready"); }

  4. How to retrieve the network type in Android?

    • Description: Use ConnectivityManager to get the current network type.
    • Code:
      ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo(); if (networkInfo != null && networkInfo.isConnected()) { Log.d("Network Type", networkInfo.getTypeName()); }

  5. How to get the current network mode (2G/3G/4G) in Android?

    • Description: Check the network type and state.
    • Code:
      int networkType = networkInfo.getSubtype(); switch (networkType) { case TelephonyManager.NETWORK_TYPE_LTE: Log.d("Network Mode", "4G"); break; case TelephonyManager.NETWORK_TYPE_HSPAP: Log.d("Network Mode", "3G"); break; case TelephonyManager.NETWORK_TYPE_GPRS: case TelephonyManager.NETWORK_TYPE_EDGE: Log.d("Network Mode", "2G"); break; default: Log.d("Network Mode", "Unknown"); }

  6. How to get the SIM operator name in Android?

    • Description: Use TelephonyManager to retrieve the operator name.
    • Code:
      String operatorName = telephonyManager.getSimOperatorName(); Log.d("Operator Name", operatorName);

  7. How to listen for changes in SIM state?

    • Description: Implement a BroadcastReceiver to listen for SIM state changes.
    • Code:
      BroadcastReceiver simStateReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String state = intent.getStringExtra(TelephonyManager.EXTRA_SIM_STATE); Log.d("SIM State Change", state); } }; IntentFilter filter = new IntentFilter(TelephonyManager.ACTION_SIM_STATE_CHANGED); registerReceiver(simStateReceiver, filter);

  8. How to check for dual SIM support in Android?

    • Description: Check if the device supports multiple SIM cards.
    • Code:
      if (telephonyManager.getPhoneCount() > 1) { Log.d("SIM Support", "Device has multiple SIMs"); } else { Log.d("SIM Support", "Single SIM device"); }

  9. How to get the country ISO code of the SIM card?

    • Description: Retrieve the country code using TelephonyManager.
    • Code:
      String countryCode = telephonyManager.getSimCountryIso(); Log.d("Country ISO", countryCode);

  10. How to get the network operator��s numeric code?

    • Description: Obtain the operator's numeric code (MCC+MNC).
    • Code:
      String operatorNumeric = telephonyManager.getSimOperator(); Log.d("Operator Numeric", operatorNumeric);

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