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California Mobile Phone Services Fact Sheet

While AT&T holds the most infrastructure among phone companies operating in California, the other major networks (T-Mobile and Verizon) are both present and operate throughout the state.

The California Public Utilities Commission (CPUC) is responsible for regulating California utilities including mobile phone services.

LifeLine includes phone service in California as of 2014
AT&T holds the most subscribers among US carriers statewide
Sprint & T-Mobile merged in 2020 & now hold a quarter of the CA market
$200 million fine proposed by FCC to carriers that deprioritized firefighters in California
MVNOs have rapidly gained popularity in California in 2023
5G coverage is reported in all major California cities in 2023

Consumer Mobile Service Guides

Our guides help consumers understand and benefit from mobile services in the state of California.

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Last Update: January 18, 2023
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