Just to be clear (and you might have read it this way) - I meant that people you know, who have you in their contacts, have installed apps on their phones which

Just to be clear (and you might have read it this way) - I meant that people you know, who have you in their contacts, have installed apps on their phones which pulled in all their contacts and that meant the app got your contact info from them. I'm 99% certain that's where the sites I buy my data get theirs. One of the sites won't even let me log in without giving up all my contacts, but I have a $15 phone on Boost with zero contacts on it to use in these kind of scummy scenarios.