I completely forgot the number.

For code-type locks that don't need a key, there are 'free dial' systems where you can set any number you like, and fixed types where the number is set in advance.

Each sheet bears a number in sequence.

Please tell the reservation clerk, Mr Ichiro Takahashi, your credit card number to confirm your reservation.

Please let me know the confirmation number you were told when you reserved the room.

The policy number of my insurance is PC-two-three-five-seven.

She dialed the wrong number.

She has asked the man at the hotel desk to get her the number.

I'm not sure what his number is. You'll have to look it up in the telephone directory.

I'm afraid you have the wrong number.

I'm afraid you have the wrong number.

I think you have the wrong number.

I'm afraid you have got the wrong number.

You have the wrong number.

You seem to have the wrong number.

The number is 932-8647, but I don't know the area code.

I'm afraid you have the wrong number.

You have the wrong number.

Uniform number No. 7 is his younger brother.

I'd like to make a call to Tokyo, Japan. The number is 3202-5625.