Cell Coverage in South Mountain, Pennsylvania

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Get unlimited data for $25/month for your first 3 months

New customers only

See Deal

Get unlimited data on Verizon for $25/month.

Or as low as $22.92/mo with the annual plan.

See Deal

Not enough data for South Mountain

Showing performance data for Franklin instead. We need at least 25 speed tests in South Mountain to generate local metrics.

Performance by Carrier in Franklin

Compare real-world download speeds, upload performance, and latency for major carriers in Franklin — based on millions of crowdsourced speed tests to help you find the fastest, most reliable network.

DownDownload

74.1Mbps

UpUpload

13.2Mbps

Reliab.Reliability

3.7/ 10

Over 1,100 tests conducted

View Carrier

DownDownload

158.2Mbps

UpUpload

15.4Mbps

Reliab.Reliability

7.6/ 10

Over 1,000 tests conducted

View Carrier

DownDownload

83.9Mbps

UpUpload

13.2Mbps

Reliab.Reliability

2.5/ 10

Over 1,100 tests conducted

View Carrier

These results compare 3 mobile carriers measured in Franklin — AT&T, Verizon, T-Mobile — using median values calculated from crowdsourced speed tests. Each card shows download speed, upload speed, and reliability to give you a complete picture of real-world network performance.

T-Mobile delivers the fastest median download at 158.2 Mbps, making it the top performer for raw download throughput. T-Mobile ranks highest for reliability with a score of 7.6/10, reflecting consistent connection quality across tests.

Promoted Offers

Get unlimited data for $25/month for your first 3 months

New customers only

See Deal

Get unlimited data on Verizon for $25/month.

Or as low as $22.92/mo with the annual plan.

See Deal

Limited-time offer

Get unlimited data for $25/month for your first 3 months

New customers only

See Deal

Limited-time

Get unlimited data on Verizon for $25/month.

Or as low as $22.92/mo with the annual plan.

See Deal

Network Performance

Based on crowdsourced speed tests and signal measurements in South Mountain, Pennsylvania using data from Franklin, get a complete view of mobile performance with area-wide benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics from real-world tests, then compare carriers side-by-side for speed, responsiveness, and availability.

Median Performance

Download

97.5Mbps

Upload

13.7Mbps

Latency

53ms

Reliability

3.4/ 10

Top Performers

Best Download: T-Mobile

158.2 Mbps

Best Upload: T-Mobile

15.4 Mbps

Best Latency: Verizon

49 ms

Best Reliability: T-Mobile

7.6 / 10

Based on over 3,400 speed tests

Network Performance aggregates all measured carriers in Franklin 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 South Mountain is limited, so these medians are based on data from Franklin. Current medians are 97.5 Mbps download, 13.7 Mbps upload, and 53 ms latency.

Promoted Offers

Get unlimited data for $25/month for your first 3 months

New customers only

See Deal

Get unlimited data on Verizon for $25/month.

Or as low as $22.92/mo with the annual plan.

See Deal

Cell Coverage in South Mountain: FAQ

What is the best cell phone carrier in South Mountain?

Based on crowdsourced speed tests in Franklin, 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 South Mountain?

We need at least 25 recent speed tests to generate reliable local metrics. Until we reach that threshold in South Mountain, we show performance data for Franklin when it is available.

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Franklin. 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 South Mountain?

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 South Mountain?

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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