In Foster City, you’ll select from 3 mobile wireless carriers listed below. 100.0% of Foster City’s land area is covered by some kind of wireless service, as are 100.00% of Foster City’s 34,060 residents. 5G reception covers up to 99.99% of people while they are sitting at home. Note that we may have a financial relationship with some of the Foster City providers below. This does not influence what data we show, and helps us provide high-quality, detailed information for free.
Foster City, CA Top Cell Providers
Starter Phones Designed for Child Safety
Coverage:
T-Mobile Network
Data Speeds:
Same as T-Mobile below
Plans start at $29/mo.
View plans
Built-in Parental Controls | Approved Contacts Only | Parent-Controlled Internet Access
Plans include 5G where available.
Coverage:
T-Mobile Network
Data Speeds:
Same as T-Mobile below
Plans start at $15/mo.
View plans
Mint Mobile provides very affordable plans using the same network as T-Mobile throughout the United States. Learn more about Mint vs. other carriers.
Verizon Wireless 5G available in Foster City
Coverage:
99.81% of Foster City
96.15% of the USA
Data Speeds:
5G: 99.73% 4G: 99.81% 3G or 2G: 99.81%
More about Verizon Wireless in Foster City
Verizon Wireless Data Speeds and Coverage in Foster City
Verizon Wireless covers 99.81% of homes in the city with mobile data. The fastest cellular data speed available is 5G. Coverage by homes and land mass (the % of acres with cell coverage versus the total acreage in Foster City) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
99.73% |
98.43% |
4G |
99.81% |
98.56% |
2G or 3G |
99.81% |
98.56% |
5G is the fastest wireless internet and data speed for 99.73% of homes. 4G is the fastest cell coverage for 0.00% of homes. 0.00% of homes can only receive 2G or 3G data. We rank Verizon Wireless as #2 out of 3 for a combination of coverage and speed among Foster City mobile providers.
Verizon Wireless Voice Quality in Foster City
5G voice quality can be very clear, and is available to 99.73% of homes. 4G voice is considered HD, and is available at 99.81% of Foster City homes. 99.81% of homes can make calls using older 2G or 3G voice technology.
AT&T Wireless 5G available in Foster City
Coverage:
99.99% of Foster City
96.67% of the USA
Data Speeds:
5G: 99.99% 4G: 99.99% 3G or 2G: 99.99%
1-833-652-2264
More about AT&T Wireless in Foster City
AT&T Wireless Data Speeds and Coverage in Foster City
AT&T Wireless covers 99.99% of homes in the city with mobile data. The fastest cellular data speed available is 5G. Coverage by homes and land mass (the % of acres with cell coverage versus the total acreage in Foster City) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
99.99% |
99.41% |
4G |
99.99% |
99.41% |
2G or 3G |
99.99% |
99.41% |
5G is the fastest wireless internet and data speed for 99.99% of homes. 4G is the fastest cell coverage for 0.00% of homes. 0.00% of homes can only receive 2G or 3G data. We rank AT&T Wireless as #1 out of 3 for a combination of coverage and speed among Foster City mobile providers.
AT&T Wireless Voice Quality in Foster City
5G voice quality can be very clear, and is available to 99.99% of homes. 4G voice is considered HD, and is available at 99.99% of Foster City homes. 99.99% of homes can make calls using older 2G or 3G voice technology.
T-Mobile 5G available in Foster City
Coverage:
100.00% of Foster City
97.12% of the USA
Data Speeds:
5G: 94.50% 4G: 99.84% 3G or 2G: 99.92%
More about T-Mobile in Foster City
T-Mobile Data Speeds and Coverage in Foster City
T-Mobile covers 100.00% of homes in the city with mobile data. The fastest cellular data speed available is 5G. Coverage by homes and land mass (the % of acres with cell coverage versus the total acreage in Foster City) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
94.50% |
94.54% |
4G |
99.84% |
98.71% |
2G or 3G |
99.92% |
99.89% |
5G is the fastest wireless internet and data speed for 94.50% of homes. 4G is the fastest cell coverage for 0.00% of homes. 0.00% of homes can only receive 2G or 3G data. We rank T-Mobile as #3 out of 3 for a combination of coverage and speed among Foster City mobile providers.
T-Mobile Voice Quality in Foster City
5G voice quality can be very clear, and is available to 94.50% of homes. 4G voice is considered HD, and is available at 99.84% of Foster City homes. 100.00% of homes can make calls using older 2G or 3G voice technology.
Coverage percentages on this page are based on the percent of Foster City homes that would be covered by cellular service of any kind, unless specified as Foster City land area.
Fastest Cell Service Down to the Foster City Neighborhood
The map below shows where Verizon, AT&T, or T-Mobile are faster in Foster City, CA. Areas with no clear winner are shown as ties.
Overall, Foster City ranks #1247 out of 3619 cities for the fastest mobile internet network speeds in California.
Best Foster City Cell Provider Key
The western parts of the city feature better overall coverage for faster data. The opposite is true in the northern areas of Foster City where mobile data speeds are generally slower.
Best Coverage & Data Speeds in Foster City, CA: AT&T Wireless
Among the largest cell phone companies in the United States, AT&T Wireless has the best speed and coverage in Foster City. AT&T Wireless has 5G that covers 99.99% of the city. Cell service of any type reaches 100.00% of Foster City homes.
Cheap Options for Mobile Service in Foster City, CA
If the price of a Foster City mobile plan is a major concern for you, cheaper mobile plans are available as well. There are several options available in Foster City including pre-paid, no-contract plans that start as low as $15 per line. Many of these providers such as Mint, Boost, and Cricket partner with the three major carriers to provide excellent coverage nationwide. With these discount options, the price of your Foster City wireless plan will quickly rise if you add additional lines or features such as a hotspot or unlimited data.
Plans include 5G where available.
Coverage:
T-Mobile Network
Data Speeds:
Same as T-Mobile above
Plans start at $15/mo.
View plans
Mint Mobile provides very affordable plans using the same network as T-Mobile throughout the United States.
These providers all offer excellent coverage at a lower price compared to more well-known brands. Mint is generally regarded as the most affordable provider for unlimited data, with a high "throttle cap" of 35GB. Depending on where you live, you may prefer the AT&T network coverage offered by Cricket. Boost is a good option for international travelers.
Foster City, CA Mobile Network Coverage Maps | Voice, 4G & 5G
Foster City Fastest Speeds Key
Your mobile coverage in Foster City may vary based on your provider and location. The map above shows the fastest mobile data speeds in and around the city. To see coverage for an individual provider, click the provider's availability maps above.
There are several types of mobile coverage to consider when evaluating a carrier’s geographic reliability. 5G is the fastest mobile data connection in Foster City covering 99.99% of homes in the area while 4G covers 99.99% of the city. Overall, 100.00% of homes (34,060 people) and 100.0% of the land (4.0 square miles) are covered by some form of cell technology.
5G Coverage Map and Availability in Foster City
Foster City 5G Coverage Key
5G is currently the most advanced network available with speeds several times faster than 4G. 5G networks in Foster City cover 99.99% of homes with 5G voice and data. In total 99.41% or 3.9 square miles of Foster City are covered by 5G. The best 5G coverage in Foster City comes from AT&T Wireless with 99.99% coverage.
4G Coverage Map and Availability in Foster City
Foster City 4G Coverage Key
4G/LTE networks have become one of the nation’s most common mobile coverage types for data, and in some locations, voice calls. In Foster City, 99.99% of the area is covered by 4G data, and 99.99% is covered by 4G HD voice service. AT&T Wireless has the best 4G network in Foster City with 99.99% coverage.
Selecting the Best Cell Provider in Foster City for You
If you’re still struggling to choose a cell phone provider in the city, some of these facts may help you decide:
- Coverage to Foster City houses is best with service from T-Mobile, with 100.00% of homes covered.
- The best coverage across all Foster City land is provided by T-Mobile at 100.00% of land area covered.
- The current best 5G coverage comes from AT&T Wireless reporting 99.99% in Foster City.
- The top estimated average speed in Foster City, estimated at 70.99, Mbps is available through AT&T Wireless.
Mobile Service Cities Near Foster City
If you live near Foster City but aren’t technically in the city, or you like to explore the region a lot, your coverage availability and speeds may vary.
Enter your zip code here to find more precise mobile numbers on your exact location. Here are our mobile and cell phone guides for several popular locations in and around Foster City:
Cities close to Foster City
- San Mateo, CA: worse coverage
- Belmont, CA: worse coverage
- San Carlos, CA: better coverage
- Highlands-Baywood Park, CA: worse coverage
- Hillsborough, CA: worse coverage
- Redwood City, CA: worse coverage
- Burlingame, CA: worse coverage
- North Fair Oaks, CA: better coverage
- Atherton, CA: better coverage
- Menlo Park, CA: better coverage
Cities with similar populations to Foster City
- Ambler, PA: equal coverage
- American Fork, UT: better coverage
- Williston, ND: worse coverage
- Bell, CA: better coverage
- Bethel Park, PA: better coverage
- North Olmsted, OH: better coverage
- Boardman, OH: better coverage
- Boone, NC: worse coverage
- Bowling Green, OH: equal coverage
- Burlington, NJ: better coverage