In a poll that asked 4,040 smartphone users in March how many dropped calls they had experienced in the past three months, AT&T — the exclusive U.S. carrier of Apple's (AAPL) iPhone and iPad mobile devices — came in dead last among the country's four largest carriers.
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Verizon (VZ) customers reported losing only 1.5% of their calls over the past three months, the lowest in the smartphone industry and the lowest percentage for a carrier ever recorded by ChangeWave. AT&T customers, by contrast, reported 4.5% of calls dropped in the last three months. That's one out of every 22 calls — three times as many as Verizon's and the worst percentage ChangeWave has ever seen. In the same survey, Sprint (S) was the country's second most reliable carrier, with 2.4% of calls dropped, and T-Mobile (DT) the third, with 2.8% of calls dropped. See graph.