PHILADELPHIA (CBS) — When you’re not on WiFi, does your phone drag? It could be worse.

Philadelphia has the 10th fastest 4G connection in the country, among urban areas.

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That’s according to OpenSignal, which compiled the numbers from their crowdsourced speed testing app.

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Philly’s average download speed is 17.6 megabits per second. That’s higher than the national and worldwide LTE averages.

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Minneapolis and Detroit led the survey. Las Vegas was the slowest among the 35 cities tested.