Can you give me your phone number?
Give me your phone number.
Can you give me your phone number?
Give me your phone number.
Tell me your phone number, please.
May I please have your telephone number?
Can you give me your cell number?
Could you please tell me what your cell phone number is?
May I have your phone number?
Can you give me your phone number?
You probably know my phone number, right?
I remembered your cell phone number.
Just in case, I will tell you my phone number.
Get her phone number down.
May I have your phone number?
Can you give me your phone number?
Tell me your telephone number, if possible.