AT&T has been crowned the worst carrier in the United States for a second year in a row. Last December we reported that AT&T ranked the lowest in every category, and not much has changed since then.
Consumer Reports tested all the carriers in the United States, and based on a survey of 58,000 individuals, AT&T ranked the lowest in every category. Over half of the people who responded to the survey who used AT&T, use some variation of the iPhone.
Currently, AT&T is the exclusive carrier of the iPhone in the United States. It doesn't help that the iPhone 4 was plagued with reception issues, dubbed 'antennagate', where the phones signal would drop when held in a specific way.
Fortune has recently confirmed that the iPhone will be coming to Verizon in early 2011. Verizon placed second to U.S. Cellular for top rated carrier in the United States, which could mean a big shift of consumers who will opt for another carrier for the iPhone. Verizon was also reported to be paying a large sum of cash to prevent Sprint and T-Mobile from getting the iPhone.