It all depends on the zip code you enter but the ones ending in C use Verizon, androids use Sprint, ending in G use either T-mobile or AT&T depending on the area The reason is that since they are basic phones not 3 g they can be used in either network And all the Nokia smartphones are 3G and they only work on AT&T 3G network that's why they send you a sim for them.
And yes, it works perfectly fine. I have a WalMart IPhone and it works just like the one from AT&T for a whole lot less.
Right now I have a contract phone (2 year contract) and for 900 minutes, unlimited text and unlimited data, I pay with tax around $105. I have ATT. That's why I was curious as to how good the quality of the reception ,data speed etc
I can't tell any difference with it being a Straight Talk phone. It works just as well as when I actually had AT&T. Unlike with AT&T, I've never had a dropped call, data speed is excellent and so is reception.
I also use Straight Talk, and I have the AT&T sim card. Never in a place without any signal, data speeds are great (I've even used my phone as a mobile hotspot with no problems a few times). Been a customer with them for over two years now.
When my contract ran out finally with Tmobile, I switched to Virgin last December to save money. Got a $50 phone (you get what you pay for) and basically it did the job with just a few major annoyances. Saved money and I just got onto my boyfriends AT&T plan, activated my new iPhone last night. Ahh much better!!
I found 2 catches:
In the end, it was only temporary for me and I could have gone longer had I splurged for a better phone. It did the job, but only the basics. It was nice to have a break and only pay $35 month.