Delete cell phone number from Facebook: Yes, it is NOT safe to put your cell phone number on Facebook account. Never ever reveal too much personal information in your Facebook account. You are asking for trouble.
So if you still have your cell phone or mobile phone number listed in your Facebook account, quickly, have it removed right away.
This is how to remove or delete cell phone number from Facebook.
1. Click Home (On right hand corner).
2. Next click "Edit Profile" (Below Find Friends, Home)
3. Now click "Contact Information" (On left hand corner. The last one listed under Basic Information).
4. Then click "Add/Remove Mobile Phones".
5. It will take you to the page called "Mobile Setting".
6. Once you have removed, your mobile phone number, it will prompt you to key in your password for confirmation.
7. Your cellphone or mobile phone number is safely removed from your Facebook account.
*Here is how to delete shared post from Facebook page.