Cellphone plan requiring nothing but a zip code to sign up.
https://wired.com/story/new-anonymous-phone-carrier-sign-up-with-nothing-but-a-zip-code/

other discussions
 

Cellphone plan requiring nothing but a zip code to sign up.
https://wired.com/story/new-anonymous-phone-carrier-sign-up-with-nothing-but-a-zip-code/