The best cell phone coverage in California

8 min read

Updated July 18, 2026

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Looking for the best cell phone service in California? You're in the right place.

At MoneySavingPro, we're here to help you find the cheapest cell phone plan with the best coverage in your area.

The best low-cost carrier will depend on needs and budget, but there's a variety of MVNOs to choose from with something for everyone.

Keep reading to find out more and compare the best cell phone providers in California.

4G LTE coverage in California

Use the interactive California coverage map below to see which network provides the best 4G cell phone coverage at your location.

5G coverage in California

Use the interactive California coverage map below to see which network provides the best 5G cell phone coverage at your location.

Compare cell phone coverage in California

MVNOs are powered by the major wireless networks; Verizon, AT&T, and T-Mobile. So you'll have access to the same cell phone coverage that you're used to just at a fraction of the cost.

T-Mobile coverage in California

• T-Mobile 4G LTE coverage in California: 44%
• T-Mobile 5G (7/1 Mbps) coverage in California: 36%
• T-Mobile 5G (35/3 Mbps) coverage in California: 23%

Use the interactive T-Mobile coverage map below to see if T-Mobile provides good cell phone service in your area.

Best phone plans on the T-Mobile network

Tello unlimited data plan in California

• T-Mobile 5G & 4G LTE network
• Unlimited talk, text and data
• Instant online activation

5

Read our Tello review

See at Tello

Mint Mobile 15GB plan in California

• T-Mobile 5G & 4G LTE network
• Unlimited talk and text with 15GB data
• Instant online activation

3.9

Read our Mint Mobile review

See at Mint Mobile

AT&T coverage in California

• AT&T 4G LTE coverage in California: 62%
• AT&T 5G (7/1 Mbps) coverage in California: 40%
• AT&T 5G (35/3 Mbps) coverage in California: 24%

Use the interactive AT&T coverage map below to see if AT&T provides good cell phone service in your area.

Best phone plans on the AT&T network

Boost Infinite unlimited data plan in California

• AT&T & T-Mobile 5G & 4G LTE networks
• Unlimited talk, text and data
• Instant online activation

3.6

Read our Boost Infinite review

Verizon coverage in California

• Verizon 4G LTE coverage in California: 60%
• Verizon 5G (7/1 Mbps) coverage in California: 28%
• Verizon 5G (35/3 Mbps) coverage in California: 21%

Use the interactive Verizon coverage map below to see if Verizon provides good cell phone service in your area.

Best phone plans on the Verizon network

Twigby Mobile 5GB plan in California

• Verizon 5G & 4G LTE network
• Unlimited talk and text with 5GB data
• Instant online activation

4.4

Read our Twigby Mobile review

See at Twigby Mobile

US Mobile unlimited data plan in California

• Verizon, AT&T & T-Mobile 5G & 4G LTE networks
• Unlimited talk, text and data
• Instant online activation

4.6

Read our US Mobile review

See at US Mobile

Compare the cheapest cell phone plans in California

California cell phone coverage FAQs

Recap: What is the best phone service in California?

MVNOs make saving money on your cell phone bill simple where ever you live in California.

Whether you're looking for unlimited data, international calling, mobile hotspot access, or a basic plan just for emergencies, there's a large selection of plans with something to suit everyone.

Switching to a cheap prepaid cell phone plan with a low-cost carrier like Boost Mobile, Mint Mobile, US Mobile, or Tello could cut your phone bill in half.

And with no contracts, if you're not happy you can amend your plan or leave and switch to another carrier without the worry of termination fees.

How we choose the best carriers and plans in CA

To select the best carriers and plans, MoneySavingPro's team of experts evaluated over 30 different carriers.

Carriers were rated in five categories, with a star rating from 1-5, with 5 stars being the best. We then calculate the overall star rating using the five categories:

1. Value for money: We compare carriers based on price, features, benefits, and promotions. It's not just about the lowest price but getting the most bang for your buck.
2. Coverage: We look at network 5G and 4G LTE coverage across the US. We use coverage maps to determine service availability and data speeds in urban, suburban, and rural locations.
3. Customer experience: We take into account items such as current user experience, website and app usability, ease of switching, and customer service in terms of availability, channels, and satisfaction ratings.
4. Transparency: We assess whether carrier pricing is clear and straightforward. We examine the fine print to check for hidden fees, confusing terms or conditions, and misleading offers to ensure upfront, honest prices and advertising.
5. Range of choice: We evaluate the diversity of plan options to determine if they fit the individual needs of all customers.

Read more about our carrier ratings methodology and our editorial process.

We regularly update our comparisons. Updating cell phone plans weekly and our content monthly to ensure we are showing the latest and most accurate information.

The data within our coverage and speed data is sourced from the FCC. We also used data from OpenStreetMap and Mapbox technology.

Find the cheapest cell phone plans in your area