4G LTE & 5G Coverage In South San Francisco

The table below shows the proportion of South San Francisco with coverage from different cellular technologies.

Network	4G Coverage	5G Coverage
AT&T	100%	100%
T-Mobile	100%	100%
Verizon	100%	100%
Dish	0%	26%

Don't be alarmed by Dish's lack of 4G coverage in South San Francisco. Dish has a newly-built network that's 5G-only.

US Cellular And Dish Roaming Coverage

US Cellular does not have native coverage in South San Francisco. However, some US Cellular subscribers may still have coverage in South San Francisco thanks to roaming agreements.

The 26% figure for Dish may understate what subscribers in South San Francisco experience after accounting for roaming agreements.

South San Francisco Cell Signal Strength

There are 224 map hexes within the census-defined boundaries of South San Francisco. The table below shows the proportion of hexes at various levels of signal strength. Where both 4G and 5G coverage is available, data is drawn from whichever technology offers a stronger signal.

Network	Strong	Decent	Weak	None
AT&T	19%	76%	5%	0%
T-Mobile	66%	33%	1%	0%
Verizon	46%	54%	0%	0%
Dish	0%	15%	11%	74%

For most purposes, decent signals are perfectly sufficient. Weak or non-existent signals cause far greater degradation in user experience.

Crowdsourced Coverage Data In South San Francisco

Coverage Critic has 8,062 crowdsourced data points from 109 map hexes within the boundaries of South San Francisco. Data is available for AT&T, T-Mobile, and Verizon.

Network	Unique Hexes	Total Observations
AT&T	80	3,358
T-Mobile	88	4,110
Verizon	42	571

Click here to toggle to the map's crowdsourced data layer.

California State-Wide Coverage Scores

Network	Coverage Score
Verizon	8.8 / 10
AT&T	8.6 / 10
T-Mobile	8.2 / 10

Data Confidence

The coverage information for South San Francisco is rated as medium-high confidence. Documentation is available elsewhere covering limitations of Coverage Critic's approach.