May I please have your telephone number?

Please enter a telephone number where you can be contacted during the day, too.

I took down her telephone number in my notebook.

I wrote down his phone number lest I should forget it.

Write down his phone number before you forget.

Could I write down your name, address and phone number, for the insurance company?

She knew neither his address nor his phone number.

She gave him her name and telephone number.

She is always forgetting my phone number.

Does she know your phone number?

Not knowing her telephone number, I couldn't call her.

You can find her phone number in the directory.

He wrote down my phone number in case he should forget it.

He crossed her old telephone number off.

He asked me if I knew her telephone number.

He gave me his office telephone number and address.

He set down the telephone number.

Do you remember his telephone number?

I forgot his phone number.

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