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San Simeon
Cell coverage comparison in San Simeon, California
Based on crowdsourced speed tests and signal measurements in San Simeon, California using data from San Luis Obispo, the current snapshot reflects over 6,800 speed tests and shows medians of 207.8 Mbps download, 17.4 Mbps upload, and 49 ms latency.
Not enough data for San Simeon
Showing performance data for San Luis Obispo instead. We need at least 25 speed tests in San Simeon to generate local metrics.
Performance by Carrier in San Luis Obispo
Explore median download speeds, upload performance, and network latency for each major mobile carrier in San Luis Obispo, 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.
DownDownload250.3 Mbps
UpUpload15.4 Mbps
Reliab.Reliability8.2 / 10
Cov.Coverage45.0%
Over 1,200 tests conducted
DownDownload261.6 Mbps
UpUpload19.2 Mbps
Reliab.Reliability6.1 / 10
Cov.Coverage39.9%
Over 4,000 tests conducted
DownDownload92.3 Mbps
UpUpload13.9 Mbps
Reliab.Reliability5.8 / 10
Cov.Coverage58.6%
Over 1,500 tests conducted
Performance by Carrier shows side-by-side results for the primary mobile providers measured in San Luis Obispo. Each row reflects download, upload, latency, and reliability for that carrier.
Providers included in this comparison are AT&T, T-Mobile, Verizon. Per-carrier test counts are shown in the table to indicate data accuracy.
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Network Performance in San Luis Obispo
Get a complete view of mobile network performance across San Luis Obispo 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 Luis Obispo-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
207.8Mbps
Upload
17.4Mbps
Latency
49ms
Reliability
6.4/ 10
Top Performers
Best Download: T-Mobile
261.6 Mbps
Best Upload: T-Mobile
19.2 Mbps
Best Latency: AT&T
43 ms
Best Reliability: AT&T
8.2 / 10
Best Coverage: Verizon
58.6%
Coverage Snapshot
5G31.5%
4G LTE58.6%
Based on 15 speed tests
Network Performance aggregates all measured carriers in San Luis Obispo to provide a baseline view of typical speeds and latency in the area. Use these medians as a quick indicator of overall network quality.
Local testing in San Simeon is limited, so these medians are based on data from San Luis Obispo. Current medians are 207.8 Mbps download, 17.4 Mbps upload, and 49 ms latency.
Cell Phone Plans for San Simeon
Compare wireless plans from carriers with coverage in this area.
Recommended PlanSponsored
Mint Mobile Unlimited Annual
$30/mo
12 month term
T-Mobile
- Unlimited Datahigh-speed
- 20 GB Hotspot
- Unlimited Minutes
- Unlimited Texts
Limited-time offer
$15/mo first year today
Recommended Plan
Red Pocket Premium
$30/mo
Monthly plan
AT&T
- 50 GB Datahigh-speed, then 64Kbps
- 10 GB Hotspot
- Unlimited Minutes
- Unlimited Texts
Recommended Plan
Mint Mobile 15GB 3 Months
$35/mo
3 month term
T-Mobile
- 15 GB Datahigh-speed, then 128Kbps
- Hotspot Included
- Unlimited Minutes
- Unlimited Texts
Red Pocket 500MB 12 Months
$5/mo
12 month term
AT&T
- 0.5 GB Datahigh-speed, then Unknown
- Hotspot Included
- 500 Minutes
- 500 Texts
Tello 100 Mins
$5/mo
Monthly plan
T-Mobile
- No Data Included
- No Hotspot Included
- 100 Minutes
- Unlimited Texts
Tello 1GB 100 Mins
$6/mo
Monthly plan
T-Mobile
- 1 GB Datahigh-speed, then data stops
- Hotspot Included
- 100 Minutes
- Unlimited Texts
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Cell Coverage in San Simeon: FAQ
What is the best cell phone carrier in San Simeon?
Based on crowdsourced speed tests in San Luis Obispo, T-Mobile currently leads in median download speeds. Compare carriers in the performance table above for the latest results.
Why might this page show limited data for San Simeon?
We need at least 25 recent speed tests to generate reliable local metrics. Until we reach that threshold in San Simeon, we show performance data for San Luis Obispo when it is available.
What is the reliability score?
The reliability score summarizes how dependable mobile performance is in San Luis Obispo. It uses a 0.0 to 10.0 scale (higher is better) and is calculated from real-world speed test percentiles with weighted components: download (50%), latency (30%), and upload (20%). It evaluates the lower-end experience using the bottom 10%, 5%, and 1% percentiles when enough samples are available. If local speed testing is limited, a coverage-based fallback is used from signal quality distribution (great/good/poor).
How can I check coverage at my specific address in San Simeon?
Use the interactive map to check signal strength at your exact address. Visit the CoverageMap interactive map to explore 4G/5G availability.
How can I contribute coverage data for San Simeon?
Download the CoverageMap app and run a few speed tests with location enabled. Your results help improve coverage accuracy and unlock local rankings faster.
Get the app