how do I disconnect a phone number from my iCloud

Hi there charlyn32,

Thanks for joining us in Apple Support Communities! We understand you're asking how to stop using your phone number for FaceTime and iMessage. We're glad you're here, and we can provide some guidance.

"If you don't want calls or messages for your iPhone on your iPad, iPod touch, or Mac, you can remove your phone number. There are two ways to do this:

• On your iPhone, go to Settings > Messages > Send & Receive. Select your Apple ID at the bottom of the screen and tap Sign Out. Then go to Settings > FaceTime, select your Apple ID and tap Sign Out.
• If the phone number that you want to remove belongs to an iPhone that you can't access, change your Apple ID password. This removes all phone numbers from your iPad, iPod touch, and Mac. Calls or messages for the removed numbers won't appear on those devices anymore."

Have a look at the 'Remove your phone number' section of the related article linked in blue at the top left corner of this page for details.

We hope this information is helpful. Don't hesitate to let us know if you have any more questions.

Take care!