4G LTE & 5G Coverage In Fountain Valley

The table below shows the proportion of Fountain Valley with coverage from different cellular technologies.

Network	4G Coverage	5G Coverage
AT&T	100%	100%
T-Mobile	100%	99%
Verizon	100%	100%
Dish	0%	1%

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

US Cellular And Dish Roaming Coverage

US Cellular does not have native coverage in Fountain Valley. However, some US Cellular subscribers may still have coverage in Fountain Valley thanks to roaming agreements.

The 1% figure for Dish may understate what subscribers in Fountain Valley experience after accounting for roaming agreements.

Fountain Valley Cell Signal Strength

There are 197 map hexes within the census-defined boundaries of Fountain Valley. 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	44%	56%	0%	0%
T-Mobile	50%	49%	1%	0%
Verizon	51%	49%	0%	0%
Dish	0%	1%	1%	99%

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

Crowdsourced Coverage Data In Fountain Valley

Coverage Critic has 10,512 crowdsourced data points from 150 map hexes within the boundaries of Fountain Valley. Data is available for AT&T, T-Mobile, and Verizon.

Network	Unique Hexes	Total Observations
AT&T	131	3,996
T-Mobile	133	4,811
Verizon	114	1,682

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 Fountain Valley is rated as medium-high confidence. Documentation is available elsewhere covering limitations of Coverage Critic's approach.