how to add bulk contacts in android more than 5000?

I am trying to add multiple contacts in android for that i used a service and so that my UI would not get effected. but problem is that i am getting an error that yield point cant accept more than 500 at a time. now i am trying it in chunks still i am not able to add more than 120 contacts in one GO!!. please reply.

import java.util.ArrayList;

import android.app.IntentService;
import android.content.ContentProviderOperation;
import android.content.Intent;
import android.content.OperationApplicationException;
import android.os.RemoteException;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds;
import android.provider.ContactsContract.RawContacts;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.CommonDataKinds.StructuredName;
import android.util.Log;
import android.widget.Toast;

public class MyServices extends IntentService {

        long mNumber;
        String cMobile;
        static int rawContactID;
        public static String CC = "countrycode";
        public static String PHONENUMBER = "";
        ArrayList<ContentProviderOperation> ops;

        public MyServices() {
                super("adding Contatcts");

        }

        @Override
        protected void onHandleIntent(Intent intent) {
                // String cc = intent.getStringExtra(CC);
                String cNumber = intent.getStringExtra(PHONENUMBER);
                // Log.e("CC", String.valueOf(cc));

                try {

                        mNumber = Long.parseLong(cNumber);

                } catch (Exception e) {

                }

                int j = 1001;
                ops = new ArrayList<ContentProviderOperation>();
                ops.add(ContentProviderOperation
                                .newInsert(ContactsContract.RawContacts.CONTENT_URI)
                                .withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, null)
                                .withValue(RawContacts.ACCOUNT_NAME, null).build());
                for (int i = 1; i < 220; i++) {
                        rawContactID = ops.size();

                        if (rawContactID % 100 == 1) {
                                doOpration();
                                ops = new ArrayList<ContentProviderOperation>();
                        }

                        String newName = "WhatsAppDating".concat("  " + j);
                        j++;
                        long k = mNumber;
                        long m = k + i;
                        Log.e("adding", String.valueOf(m));
                        String fNumber = String.valueOf("+91" + m);

                        // Adding insert operation to operations list
                        // to insert display name in the table ContactsContract.Data
                        ops.add(ContentProviderOperation
                                        .newInsert(ContactsContract.Data.CONTENT_URI)
                                        .withValueBackReference(
                                                        ContactsContract.Data.RAW_CONTACT_ID, i)
                                        .withValue(ContactsContract.Data.MIMETYPE,
                                                        StructuredName.CONTENT_ITEM_TYPE)
                                        .withValue(StructuredName.DISPLAY_NAME, newName).build());

                        // Adding insert operation to operations list
                        // to insert Mobile Number in the table
                        // ContactsContract.Data
                        ops.add(ContentProviderOperation
                                        .newInsert(ContactsContract.Data.CONTENT_URI)
                                        .withValueBackReference(
                                                        ContactsContract.Data.RAW_CONTACT_ID, i)
                                        .withValue(ContactsContract.Data.MIMETYPE,
                                                        Phone.CONTENT_ITEM_TYPE)
                                        .withValue(Phone.NUMBER, fNumber)
                                        .withValue(Phone.TYPE, CommonDataKinds.Phone.TYPE_MOBILE)
                                        .build());

                }

        }

        private void doOpration() {
                try {
                        Log.e("One 100 done", String.valueOf(ops.size()));
                        getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops);

                } catch (RemoteException e) {
                        e.printStackTrace();
                } catch (OperationApplicationException e) {
                        e.printStackTrace();
                }
                Toast.makeText(getApplicationContext(),
                                "Contacts are successfully added", Toast.LENGTH_SHORT).show();
                return;
        }

}