In 94521, you’ll select from 3 mobile wireless carriers listed below. 100.0% of 94521’s land area is covered by some kind of wireless service, as are 100.00% of 94521’s 42,899 residents. 5G reception covers up to 99.98% of people while they are sitting at home. Note that we may have a financial relationship with some of the 94521 providers below. This does not influence what data we show, and helps us provide high-quality, detailed information for free.
94521, 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.
T-Mobile 5G available in 94521
Coverage:
100.00% of 94521
97.12% of the USA
Data Speeds:
5G: 99.95% 4G: 99.33% 3G or 2G: 99.99%
More about T-Mobile in 94521
T-Mobile Data Speeds and Coverage in 94521
T-Mobile covers 100.00% of homes in the zip 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 94521) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
99.95% |
99.68% |
4G |
99.33% |
99.39% |
2G or 3G |
99.99% |
99.98% |
5G is the fastest wireless internet and data speed for 99.95% 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 #1 out of 3 for a combination of coverage and speed among 94521 mobile providers.
T-Mobile Voice Quality in 94521
5G voice quality can be very clear, and is available to 99.95% of homes. 4G voice is considered HD, and is available at 100.00% of 94521 homes. 100.00% of homes can make calls using older 2G or 3G voice technology.
Verizon Wireless 5G available in 94521
Coverage:
100.00% of 94521
96.15% of the USA
Data Speeds:
5G: 96.02% 4G: 99.97% 3G or 2G: 100.00%
More about Verizon Wireless in 94521
Verizon Wireless Data Speeds and Coverage in 94521
Verizon Wireless covers 100.00% of homes in the zip 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 94521) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
96.02% |
97.75% |
4G |
99.97% |
99.92% |
2G or 3G |
100.00% |
100.00% |
5G is the fastest wireless internet and data speed for 96.02% 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 #3 out of 3 for a combination of coverage and speed among 94521 mobile providers.
Verizon Wireless Voice Quality in 94521
5G voice quality can be very clear, and is available to 96.02% of homes. 4G voice is considered HD, and is available at 99.98% of 94521 homes. 99.97% of homes can make calls using older 2G or 3G voice technology.
AT&T Wireless 5G available in 94521
Coverage:
100.00% of 94521
96.67% of the USA
Data Speeds:
5G: 99.86% 4G: 100.00% 3G or 2G: 100.00%
1-833-652-2264
More about AT&T Wireless in 94521
AT&T Wireless Data Speeds and Coverage in 94521
AT&T Wireless covers 100.00% of homes in the zip 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 94521) is shown below.
Tech |
% Homes |
% Land |
|---|---|---|
5G |
99.86% |
97.90% |
4G |
100.00% |
100.00% |
2G or 3G |
100.00% |
100.00% |
5G is the fastest wireless internet and data speed for 99.86% 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 #2 out of 3 for a combination of coverage and speed among 94521 mobile providers.
AT&T Wireless Voice Quality in 94521
5G voice quality can be very clear, and is available to 99.86% of homes. 4G voice is considered HD, and is available at 100.00% of 94521 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 94521 homes that would be covered by cellular service of any kind, unless specified as 94521 land area.
Fastest Cell Service Down to the 94521 Neighborhood
The map below shows where Verizon, AT&T, or T-Mobile are faster in 94521, CA. Areas with no clear winner are shown as ties.
Overall, 94521 ranks #1367 out of 3619 zip codes for the fastest mobile internet network speeds in California.
Best 94521 Cell Provider Key
The western parts of the zip feature better overall coverage for faster data. The opposite is true in the southern areas of 94521 where mobile data speeds are generally slower.
Best Coverage & Data Speeds in 94521, CA: T-Mobile
Among the largest cell phone companies in the United States, T-Mobile has the best speed and coverage in 94521. T-Mobile has 5G that covers 99.95% of the zip. Cell service of any type reaches 100.00% of 94521 homes.
Cheap Options for Mobile Service in 94521, CA
If the price of a 94521 mobile plan is a major concern for you, cheaper mobile plans are available as well. There are several options available in 94521 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 94521 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.
94521, CA Mobile Network Coverage Maps | Voice, 4G & 5G
94521 Fastest Speeds Key
Your mobile coverage in 94521 may vary based on your provider and location. The map above shows the fastest mobile data speeds in and around the zip. 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 94521 covering 99.98% of homes in the area while 4G covers 100.00% of the zip. Overall, 100.00% of homes (42,899 people) and 100.0% of the land (14.2 square miles) are covered by some form of cell technology.
5G Coverage Map and Availability in 94521
94521 5G Coverage Key
5G is currently the most advanced network available with speeds several times faster than 4G. 5G networks in 94521 cover 99.98% of homes with 5G voice and data. In total 99.88% or 14.2 square miles of 94521 are covered by 5G. The best 5G coverage in 94521 comes from T-Mobile with 99.95% coverage.
4G Coverage Map and Availability in 94521
94521 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 94521, 100.00% of the area is covered by 4G data, and 100.00% is covered by 4G HD voice service. T-Mobile and AT&T Wireless has the best 4G network in 94521 with 100.00% coverage.
Selecting the Best Cell Provider in 94521 for You
If you’re still struggling to choose a cell phone provider in the zip, some of these facts may help you decide:
- Coverage to 94521 houses is best with service from T-Mobile, Verizon Wireless, and AT&T Wireless, with 100.00% of homes covered.
- The best coverage across all 94521 land is provided by T-Mobile, Verizon Wireless, and AT&T Wireless at 100.00% of land area covered.
- The current best 5G coverage comes from T-Mobile reporting 99.95% in 94521.
- The top estimated average speed in 94521, estimated at 70.96, Mbps is available through T-Mobile.
Mobile Service Zip Codes Near 94521
If you live near 94521 but aren’t technically in the zip, 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 94521: