$retornoBanco = [
            ['id' => 1, 'numero' => '123456', 'operador' => 4],
            ['id' => 2, 'numero' => '123456', 'operador' => 3],
            ['id' => 3, 'numero' => '(11) 123-456', 'operador' => 4]
        ];

        $result = [];
        foreach ($retornoBanco as $key => $value) {

            if (isset($retornoBanco[$key + 1])) {

                $result[] = array_diff_assoc($retornoBanco[$key + 1], $value);

            }

        }


        echo '<table border="1">';
        echo '<tr>';
        echo '<td>ID</td>';
        echo '<td>Numero Atual</td>';
        echo '<td>Alterado Para</td>';
        echo '<td>Operador Atual</td>';
        echo '<td>Alterado Para</td>';
        echo '</tr>';

        foreach ($retornoBanco as $k => $v) {

            echo '<tr>';

            echo '<td>';
            echo $v['id'];
            echo '</td>';

            echo '<td>';
            echo $v['numero'];
            echo '</td>';

            echo '<td>';
            echo(isset($result[$k]['numero']) ? $result[$k]['numero'] : '');
            echo '</td>';

            echo '<td>';
            echo $v['operador'];
            echo '</td>';

            echo '<td>';
            echo(isset($result[$k]['operador']) ? $result[$k]['operador'] : '');
            echo '</td>';

            echo '</tr>';
        }
        echo '</table>';