In 93603 there are 5 residential internet providers covering 75.79% of the zip. The average home can get speeds up to 113 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
Jump to Availability Maps
5 Internet Service Providers in 93603
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in 93603 are not shown.
93603 Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Availability maps for all providers in 93603
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
Please note some providers will take longer to load than others
Internet service is available in 75.79% of 93603. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is Frontier. Now you can call companies in 93603 with more confidence that they might be available.
How fast are internet speeds in 93603?
The map below shows maximum internet speeds by area in 93603.
Internet Speed Key
The average 93603 home can get up to 113 Mbps on their internet plan. For most people, the fastest download speed in the zip is 300 Mbps, which 11.58% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 28.77% of homes can only purchase plans up to 50 Mbps. See the internet provider details below for info about their speed and coverage in 93603.
Internet speeds tend to be faster in the northwest parts of 93603, and slower in the east areas of the zip.
What type of internet should I choose in 93603?
The fastest internet for you may vary based on where in 93603 you live. If speed is your main concern, fixed wireless will be the fastest internet in the zip.
- Fiber is the fastest internet type for less than 1% of 93603 homes.
- Cable is fastest for less than 1% of the zip.
- DSL is fastest for 35.44%.
- Fixed wireless is fastest for 40.35%.
- Satellite internet may be the only option for 24.21% of 93603 homes.
Internet Market Health in 93603
Internet Competition Key
The map shows how competitive the 93603 internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in 93603 based on what connections the average home has availabile:
- Average number of internet service providers to a home: 1.7 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 1.5 (very unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 1.3 (very unhealthy)
Overall, competition is very unhealthy.
93603 internet customers have the ability to buy internet service from 1 to 3 different providers, depending on where they live. For different types of service, 93603 homes have between 1 and 2 options. The type(s) of service available are dsl and fixed wireless, though these may vary depending on the region within the zip.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. 93603 internet customers who want faster speeds have between 1 and 2 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, 93603 badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in 93603, along with details on where in 93603 and at what speeds.
Frontier Communications DSL in 93603, CA
Frontier DSL coverage
About 61.40%, or 175 people, have Frontier DSL internet available to them in the zip. The company covers the west, central, northwest, northeast, and south 93603 area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of 93603.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in 93603. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 4 different maximum speeds throughout 93603. The fastest plan anyone in 93603 can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 93603 customers is up to 64 Mbps.
Show all download speeds
- 33.1% up to 115.0 Mbps
- 22.9% up to 90.0 Mbps
- 1.7% up to 70.0 Mbps
- 42.3% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In 93603 download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is the slowest where upload speeds are concerned, and the fastest compared to other 93603 DSL providers. Frontier offers 4 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 93603 is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 3.9 Mbps.
Show all upload speeds
- 33.1% up to 7.0 Mbps
- 22.9% up to 5.0 Mbps
- 1.7% up to 3.0 Mbps
- 42.3% up to 1.0 Mbps
unWired Broadband Fixed Wireless in 93603, CA
unWired Broadband fixed wireless coverage
About 54.39%, or 155 people, have unWired Broadband fixed wireless internet available to them in the zip. The company covers the west, northwest, central, south, east, and southwest 93603 area. unWired Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of 93603.
unWired Broadband fixed wireless download speeds
unWired Broadband is the slowest when comparing download speeds to all other internet providers in 93603. Versus other fixed wireless providers in the area, unWired Broadband fixed wireless is the slowest. There are no different maximum speeds throughout 93603. The fastest plan anyone in 93603 can order from unWired Broadband goes up to 50 Mbps, and all 93603 customers can get this speed.
Show all download speeds
- 100.0% up to 50.0 Mbps
unWired Broadband fixed wireless upload speeds
In 93603 download speeds tend to be faster than than upload speeds for unWired Broadband fixed wireless. Compared to other ISPs, unWired Broadband is average where upload speeds are concerned, and the slowest compared to other 93603 fixed wireless providers. unWired Broadband offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 93603 is up to 12 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 12.0 Mbps
Verizon Fixed Wireless in 93603, CA
Verizon fixed wireless coverage
About 11.58%, or 33 people, have Verizon fixed wireless internet available to them in the zip. The company covers the northwest 93603 area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 93603.
Verizon fixed wireless download speeds
Verizon is the fastest when comparing download speeds to all other internet providers in 93603. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout 93603. The fastest plan anyone in 93603 can order from Verizon goes up to 300 Mbps, and all 93603 customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In 93603 download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is the fastest where upload speeds are concerned, and the fastest compared to other 93603 fixed wireless providers. Verizon offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 93603 is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
93603 Internet by Area
This information is most helpful to those looking for homes or considering moving to 93603 or any of the areas nearby.
How does internet in 93603 compare to the rest of California?
Internet speeds in 93603 are much slower versus the average speeds in California: 3,631 Mbps in California versus 113 Mbps in the zip. The state has far less internet availability compared to the zip. Average internet coverage in California is 98.73% versus 75.79% in 93603.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around 93603 are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service look like in other zip codes?
Below are zip codes nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Zip Codes
- 93641, CA: more internet coverage, faster speeds
- 93621, CA: more internet coverage, faster speeds
- 93628, CA: less internet coverage, slower speeds
- 93675, CA: more internet coverage, faster speeds
- 93633, CA: less internet coverage, slower speeds
- 93262, CA: more internet coverage, faster speeds
- 93647, CA: more internet coverage, faster speeds
- 93646, CA: more internet coverage, faster speeds
- 93615, CA: more internet coverage, faster speeds
- 93666, CA: more internet coverage, faster speeds
Zip Codes with Similar Populations
- 02873, RI: more internet coverage, faster speeds
- 99791, AK: more internet coverage, faster speeds
- 97731, OR: more internet coverage, faster speeds
- 97635, CA: more internet coverage, faster speeds
- 97625, OR: more internet coverage, faster speeds
- 23091, VA: more internet coverage, faster speeds
- 17920, PA: more internet coverage, faster speeds
- 17836, PA: more internet coverage, faster speeds
- 15750, PA: more internet coverage, faster speeds
- 15006, PA: more internet coverage, faster speeds