您好像打錯電話了。
I'm afraid you have the wrong number. *wrong“錯的”、“不對的”,wrong number“錯的電話號碼”。
I'm afraid you have the wrong number. (您可能打錯電話了。)
Oh, sorry for troubling you. (哦,對不起,打擾您了。)
I'm sorry, you've got the wrong number.
您撥的電話號碼是多少?
What number are you calling?
What number are you trying to reach?