How do I unsync phone number from Ipad pro?

[jav6]

What do you mean by 'unsync phone number'?  Is your iPad on your account as a separate line with its own phone number?  Is your iPad using the Message+ Integrated Messaging with your phones' phone number?  More information of your issue/scenario is needed.

[vzw_customer_support]

Please let us know if this guide is helpful: https://support.apple.com/en-us/HT204074

Feel free to send us a Private Note if you need further assistance.