Time recently partnered with OpenSignalMaps to figure out which cities in the U.S. experience the worst dropped calls, slow download speeds and generally horrible mobile reception. Here are the top 10 worst places to try and use your mobile:

10. Detroit, Michigan
Worst Carrier: AT&T
Best Carrier: Sprint

9. Lexington, Kentucky
Worst Carrier: T-Mobile
Best Carrier: Sprint

8. Jacksonville, Florida
Worst Carrier: T-Mobile
Best Carrier: Sprint

7. Milwaukee, Wisconsin
Worst Carrier: T-Mobile
Best Carrier: Sprint

6. Tucson, Arizona
Worst Carrier: T-Mobile
Best Carrier: Sprint

5. Toledo, Ohio
Worst Carrier: T-Mobile
Best Carrier: Sprint

4. Lincoln, Nebraska
Worst Carrier: T-Mobile
Best Carrier: Verizon

3. Oklahoma City, Oklahoma
Worst Carrier: AT&T
Best Carrier: Sprint

2. Colorado Springs, Colorado
Worst Carrier: AT&T
Best Carrier: Sprint

And the No. 1 worst city in the United States for cell receptions is …

1. Bakersfield, California
Worst Carrier: AT&T
Best Carrier: Sprint

The article provides possible explanations for the poor reception, read about it at Time >>>

T-Mobile and AT&T both performed poorly in quite a few cities (six and four respectively) and Sprint came out as the clear champion, having the best service in bad nine out of 10 bad service areas. So if you happen to be moving to one of these fair cities soon, you might want to switch over to Sprint.