PC World's tests included thirteen major cities with more than twenty tests per city from all regions of the country during a two-month period from March to April 2009. In all 5,443 individual tests from 283 testing locations were conducted for each provider's 3G service. Testing was one minute in duration, and network performance can be highly variable from neighborhood to neighborhood. The thirteen cities included Baltimore, Boston, Chicago, Denver, New Orleans, New York City, Orlando, Phoenix, Portland, San Diego, San Jose, San Francisco and Seattle. Sprint tied for reliability in Orlando.

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