San Francisco
Cell coverage comparison in San Francisco, California
Based on crowdsourced speed tests and signal measurements in San Francisco, California, the current snapshot reflects over 98,000 speed tests and shows medians of 155.2 Mbps download, 15.6 Mbps upload, and 34 ms latency.
Performance by Carrier in San Francisco
Explore median download speeds, upload performance, and network latency for each major mobile carrier in San Francisco, calculated from millions of real-world, crowdsourced speed tests. These results reflect typical everyday performance to help you compare carriers and choose the network that delivers the fastest speeds, most responsive connections, and broadest coverage where you live, work, and travel.
Over 8,900 tests conducted
Over 9,500 tests conducted
Over 79,000 tests conducted
Performance by Carrier shows side-by-side results for the primary mobile providers measured in San Francisco. Each row reflects median download, upload, and latency for that carrier.
Providers included in this comparison are Verizon, T-Mobile, AT&T. Per-carrier test counts are shown in the table to indicate data accuracy.
Network Performance in San Francisco
Get a complete view of mobile network performance across San Francisco with overall benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics calculated from millions of real-world, crowdsourced speed tests. Start with the San Francisco-wide snapshot to understand overall network trends, then dive deeper to compare individual carriers side-by-side and see how each performs in speed, responsiveness, and availability.
Median Performance
Download
Upload
Latency
Top Performers
Fastest Download: Verizon
181.3 Mbps
Fastest Upload: T-Mobile
21.7 Mbps
Best Latency: AT&T
30 ms
Best Coverage: Verizon
99.7%
Coverage Snapshot
Network Performance aggregates all measured carriers in San Francisco to provide a baseline view of typical speeds and latency in the area. Use these medians as a quick indicator of overall network quality.
These medians are calculated from over 98,000 tests. Current medians are 155.2 Mbps download, 15.6 Mbps upload, and 34 ms latency.
Cell Phone Plans Available in San Francisco
Compare wireless plans from carriers with coverage in this area.
MobileX Custom
Monthly plan
- No Data Included
- Hotspot Included
- Unlimited Minutes
- Unlimited Texts
MobileX 150 Mins 150 Texts
Monthly plan
- No Data Included
- No Hotspot Included
- Unlimited Minutes
- Unlimited Texts
Red Pocket 500MB 12 Months
12 month term
- 0.5 GB Datahigh-speed, then Unknown
- Hotspot Included
- 500 Minutes
- 500 Texts
MobileX Unlimited Talk and Text
Monthly plan
- No Data Included
- No Hotspot Included
- Unlimited Minutes
- Unlimited Texts
US Mobile Light Plan Annual
12 month term
- 2 GB Datahigh-speed, then data stops
- No Hotspot Included
- Unlimited Minutes
- Unlimited Texts
- Taxes & Fees Included
MobileX Custom 1GB
Monthly plan
- 1 GB Datahigh-speed, then data stops
- Hotspot Included
- Unlimited Minutes
- Unlimited Texts
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Citys in San Francisco
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Cell Coverage in San Francisco: FAQ
What is the best cell phone carrier in San Francisco?
Why might this page show limited data for San Francisco?
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How can I contribute coverage data for San Francisco?
Download the CoverageMap app and run a few speed tests with location enabled. Your results help improve coverage accuracy and unlock local rankings faster.
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Explore detailed coverage data on our interactive map to find the best carrier for your specific location.
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