Among the other surprises in the report, Oklahoma City finished second overall behind Chicago, even though it has one-tenthth the population. The smallest city of the 125, Rockford, Ill., with a population just under 300,000, finished fourth overall.
In theory, it should be possible for a carrier to serve a smaller city better, but that doesn't explain why Chicago did so well or why Detroit came in seventh overall and Atlanta finished 10th.
Some of the differences in rankings are small and additional network upgrades in coming months could significantly change the network performance and ranking for a city when RootMetrics does its next round of tests in six months.
The differences between cities on texting capability are not as large as the differences in data speed, Dey said. "As we continue to run these measures, it will be interesting to see if the differentials change," she said.
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