I forgot my phone number

[Rudrapratapsinh]

I don't know my phone number

 

[Rudrapratapsinh]

Don't know phone number

 

[ahnilated]

Call your phone company. This sounds far to suspicious for us to comment or try and help you here.

 

[USAFRet]

I don't know my phone number

Ask one of your friends.
Look in your phone settings.
Ask your phone provider.

 

[Guest]

If you have a smart phone, you can look it up by going to Settings -> About Phone.

Or get one of your friends to call. It's called calling history.