There is an app called "Burner" and it makes you a phone number that lasts a short period of time. The reason I really liked it, is because when I sign up for certain things on the internet it asks for a phone number that I don't want to give out. So instead, I use this app and I can burn the number when I'm done with it. If you are interested in this app, download it and use the referral code: SHIMFMHR and you will get 2 free credits.