Hello guys, I've been searching high and low for any tutorials on how to buy phone numbers (i.e. activated disposable phones) at a reasonable price in the US. I've read somewhere on here about buying Sim cards but I'm not familiar with how sim cards work and such, as my personal cell phone service I never had a need to switch out sim cards to change numbers or anything like that. Is it really that simple as me buying a phone and then every time I need number changed, for me to just swap in a SIM card? Without me even having to go through customer service or anything like that? That's why I'm so confused because when I read those "buy SIM card" threads, they make it sound so easy but there has to be more to it. Any help would be greatly appreciated. And please note that I have tried a couple of those online SMS services, and those services seem to not work. I lost a couple of dollars testing out one service in particular, that I found through the forum, but it didn't work.