I have had no problems with AT&T but I live in the city right near Downtown, I've only had a service outage once and I get reception everywhere I go.....well as far as I know, I'm not a phone person, I have the Iphone more for the pocket computer and less for the phone, if I'm somewhere I can't get reception it's likely somewhere I don't want to be bothered like hiking or chilling at the beach.....