Actually I used to have to SG3 on sprint and just this week switched to at&t and couldnt be happier for both reasons, the s3 has a lot of glitches, one of them has to do with alarm going off at different times and it was freezing from time to time, but getting this phone on at&t 4g here is south florida. it is amazing, I get 4g LTE EVERYWHERE!!! cya sprint