For your Apple “two-factor authentication” settings, you can add an additional trusted phone number just in case you lose your password. Here is how to do so in macOS and iOS.
With the rise of mobile apps that make use of your phone number as your login ID, it is important now to safeguard your phone number and prevent it from showing up in Caller ID.
Virtual SIM Android apps allow you to own multiple virtual phone numbers. These are the best virtual cell phone number apps for your Android phone.
After you have changed your phone number, you can also change the phone number associated with Whatsapp so your account remains intact.