code to get all the sim and carrier properties in Android oreo(v26)

package simcarrier.example.com.carrierproperties;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Build;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    TelephonyManager telManager ;
    String networkOperator;
    String propertiesStr = "";
    TextView carrierPropertiesTxtView;

    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        carrierPropertiesTxtView = findViewById(R.id.carrierProperties);

        telManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        networkOperator = telManager.getNetworkOperator();

        if (checkSelfPermission(android.Manifest.permission.READ_PHONE_STATE)
                == PackageManager.PERMISSION_GRANTED ||
                checkSelfPermission(android.Manifest.permission.ACCESS_NETWORK_STATE)
                        == PackageManager.PERMISSION_GRANTED ) {
            Log.v("TAG","Permission is granted");

            getCarrierProp();

        } else {
            Log.v("TAG","Permission is revoked");
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE , Manifest.permission.ACCESS_NETWORK_STATE}, 1);
        }


    }


    @Override    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if(grantResults[0]== PackageManager.PERMISSION_GRANTED){
            Log.v("TAG","Permission: "+permissions[0]+ "was "+grantResults[0]);
            getCarrierProp();
        }
    }


    private void getCarrierProp(){
        try{
            if (!TextUtils.isEmpty(networkOperator)) {
                int mcc = Integer.parseInt(networkOperator.substring(0, 3));
                int mnc = Integer.parseInt(networkOperator.substring(3));

                propertiesStr = propertiesStr+ " MCC="+mcc
                        +"\n MNC="+mnc
                        +"\n GID1         :      " + telManager.getGroupIdLevel1()
                        +"\n Device       :      " + Build.DEVICE                        +"\n MANUFACTURER :      " + Build.MANUFACTURER                        +"\n MODEL        :      " + Build.MODEL                        +"\n Network operator:   " + telManager.getNetworkOperator()
                        +"\n Network operatorName: " + telManager.getNetworkOperatorName()
                        +"\n Network type:      " + telManager.getNetworkType()
                        +"\n Sim Operator:      " + telManager.getSimOperator()
                        +"\n Sim Operator name: " + telManager.getSimOperatorName()
                        +"\n Sim State   :      " + telManager.getSimState()
                        +"\n Sim SerialNo:      " + telManager.getSimSerialNumber()
                        +"\n PhoneNumber :      " + telManager.getLine1Number();

                carrierPropertiesTxtView.setText(propertiesStr);
            }
        }catch(SecurityException e){
            // SIM methods can cause Exceptions on some devices            e.printStackTrace();
        }catch(Exception e){
            e.printStackTrace();
        }
    }
}