If I change my number but not my iCloud emails can people still contact me?
changing number and keeping Apple I cloud
Question marked as
Yes, changing your phone number will not disable the access to iCloud, if you do not use your phone number as your Apple ID.
Just make sure that your new phone number is listed and selected in Settings/Messages/Send & Receive, and people will still be able to text you, using your new number.
If you do use your phone number and not an email address as your Apple ID, have a look at this article:
Use your mobile phone number as your Apple ID - Apple Support