AirVoice - Worth checking out!
This company used to be on the comparison chart but isn't now. My experience: For years I'd been with Verizon, always on the least expensive plan I was aware of. Most recently I was on the prepay plan prior to the one they use now at 15.00/mo used up at a rate of .25/call connection fee and .10/minute. Even with that plan I was renewing each month and rolling over minutes until I had about 30 hours accumulated. I learned about a company "AirVoice" which I believe uses the Verizon/CDMA technology.
Worth a try since I could use my existing vintage phone and buy 100 minutes for 10.00 to be used up over several months...plenty of minutes for me. To my surprise, when I made the switch (successfully) all of the minutes I had accumulated with Verizon came to my new service.
The best part is, for a couple of months now I've not spent A DIME (for my line) yet, though I'm due to get some time now. This was a trial to see if I'd be returning to Verizon. So far, the reliable service (same operator voice reminding me of my time available), and great rates, caused me to switch my wife and young son to AirVoice as well. Had I read this column prior to switching I'd have even "ported" my old phone number though that may have negated my minutes...not sure how that would have worked out, but that was an unexpected bonus anyway.
If Verizon is the network many people in your area have luck with, check out AirVoice. They do have a GSM (AT&T) network as well, but I have no experience with that one. Do the math realistically to see if it'll work for you and your calling habits. I can tell you that If you want coverage, don't want to worry about calling circles, friends, whatever the terminology, and you don't want a contract...check out AirVoice. It's well worth a 10 Buck trial run especially if you have a compatible (Verizon) phone and most are. JUST FOR THE RECORD, I sell cars and I am not at all affilliated with any cell phone company.