Why is straight talk not working in my zip code?

I bought an ATT iPhone 4s and a micro sim card from straight talk that was compatible with this phone. I activated it, and it says "no service." I've heard that straight talk uses ATT towers, and they work fine in our area. So what is the problem?

Call ATT's service number.

  • Why is my iphone 6 not activating with Straight Talk? I bought an iphone 6 at the Apple store in London, so it's unlocked. Straight Talk is my provider. They sent me a sim card for it and called them and they transferred over my service, but when I put in my sim card, I get no service. It gives me a message that says phone is activated, but I have no service. I even waited over 4 hours. Does anyone know what the problem is?
  • Straight talk sim not working on iphone? I had a crappy straight talk phone and just bought an iphone, so i took the sim card out and cut it into a micro sim. But when i try to put it into my iphone it just say no sim? What's the deal?
  • Straight talk sim card in Iphone 4 not working? I purchased an unlocked iphone 4 from ebay. I took a sim card out of a deactivated nokia e5 and cut it down to fit the iphone. When i put the sim card in the iphone a notification changes from no sim card to no service. I tried to activate the sim card using the serial number on it via straight talk website. It keeps telling that the serial number isn't recognized. I don't know if I need a new sim card or what I need to do. Can someone please help me?!
  • Straight talk on my iphone not working internet? Whenever I'm not connected to Wi-Fi I can't use safari or YouTube or Facebook anything that needs internet. I got a card with unlimited talk, text and web and activated yesterday and the only problem I have is I can't use the internet. Can anybody help or should I just call straight talk