Q: iMessage: ipad imessage & facetime tel no. change

Hi Tankerous,

Thanks for using Apple Support Communities. Based on what you stated, it sounds like you want to use a different phone number on the iPad. I would recommend that you read this article, it may be able to help the issue.

iOS and OS X: Link your phone number and Apple ID for use with FaceTime and iMessage - Apple Support

Your iPhone telephone number is linked to your Apple ID when you sign in to FaceTime or iMessage. This allows you to use your iPhone number with FaceTime and iMessage on other iOS devices.

Cheers,

Mario