public static List<Operator> getOperatorList() {
        List<Operator> operatorList = new ArrayList<>();
        // KODE TELKOMSEL
        operatorList.add(new Operator("0811", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0812", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0813", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0821", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0822", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0823", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0852", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0853", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        operatorList.add(new Operator("0851", "tsel", "1", R.drawable.ic_telkomsel, "Telkomsel"));
        // KODE INDOSAT
        operatorList.add(new Operator("0814", "isat", "2", R.drawable.ic_indosat, "Indosat"));
        operatorList.add(new Operator("0815", "isat", "2", R.drawable.ic_indosat, "Indosat"));
        operatorList.add(new Operator("0816", "isat", "2", R.drawable.ic_indosat, "Indosat"));
        operatorList.add(new Operator("0855", "isat", "2", R.drawable.ic_indosat, "Indosat"));
        operatorList.add(new Operator("0856", "isat", "2", R.drawable.ic_indosat, "Indosat"));
        operatorList.add(new Operator("0857", "isat", "2", R.drawable.ic_indosat, "Indosat"));
        operatorList.add(new Operator("0858", "isat", "2", R.drawable.ic_indosat, "Indosat"));
        // KODE XL
        operatorList.add(new Operator("0817", "xl", "3", R.drawable.ic_xl, "XL"));
        operatorList.add(new Operator("0818", "xl", "3", R.drawable.ic_xl, "XL"));
        operatorList.add(new Operator("0819", "xl", "3", R.drawable.ic_xl, "XL"));
        operatorList.add(new Operator("0859", "xl", "3", R.drawable.ic_xl, "XL"));
        operatorList.add(new Operator("0877", "xl", "3", R.drawable.ic_xl, "XL"));
        operatorList.add(new Operator("0878", "xl", "3", R.drawable.ic_xl, "XL"));
        // KODE TRI
        operatorList.add(new Operator("0895", "three", "5", R.drawable.ic_tri, "Tri"));
        operatorList.add(new Operator("0896", "three", "5", R.drawable.ic_tri, "Tri"));
        operatorList.add(new Operator("0897", "three", "5", R.drawable.ic_tri, "Tri"));
        operatorList.add(new Operator("0898", "three", "5", R.drawable.ic_tri, "Tri"));
        operatorList.add(new Operator("0899", "three", "5", R.drawable.ic_tri, "Tri"));
        // KODE SMART
        operatorList.add(new Operator("0881", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0882", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0883", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0884", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0885", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0886", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0887", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0888", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        operatorList.add(new Operator("0889", "smartfren", "6", R.drawable.ic_smartfren, "Smartfren"));
        //KODE AXIS
        operatorList.add(new Operator("0838", "axis", "7", R.drawable.ic_axis, "Axis"));
        operatorList.add(new Operator("0831", "axis", "7", R.drawable.ic_axis, "Axis"));
        operatorList.add(new Operator("0832", "axis", "7", R.drawable.ic_axis, "Axis"));
        operatorList.add(new Operator("0833", "axis", "7", R.drawable.ic_axis, "Axis"));
        return operatorList;
    }