In 99121 there are 5 residential internet providers covering 97.78% of the zip. The average home can get speeds up to 3,283 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.
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5 Internet Service Providers in 99121
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 99121 are not shown.
99121 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 99121
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.
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Internet service is available in 97.78% of 99121. 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 Ziply. Now you can call companies in 99121 with more confidence that they might be available.
How fast are internet speeds in 99121?
The map below shows maximum internet speeds by area in 99121.
Internet Speed Key
The average 99121 home can get up to 3,283 Mbps on their internet plan. For most people, the fastest download speed in the zip is 6,000 Mbps, which 53.33% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 15.56% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in 99121.
Internet speeds tend to be faster in the north parts of 99121, and slower in the south areas of the zip.
What type of internet should I choose in 99121?
The fastest internet for you may vary based on where in 99121 you live. If speed is your main concern, fiber will be the fastest internet in the zip.
- Fiber is the fastest internet type for 53.33% of 99121 homes.
- Cable is fastest for less than 1% of the zip.
- DSL is fastest for 17.78%.
- Fixed wireless is fastest for 26.67%.
- Satellite internet may be the only option for 2.22% of 99121 homes.
Internet Market Health in 99121
Internet Competition Key
The map shows how competitive the 99121 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 99121 based on what connections the average home has availabile:
- Average number of internet service providers to a home: 2.1 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 2.0 (unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 1.5 (very unhealthy)
Overall, competition is very unhealthy.
99121 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, 99121 homes have between 1 and 3 options. The type(s) of service available are fixed wireless, dsl, and fiber, 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. 99121 internet customers who want faster speeds have between 0 and 3 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, 99121 badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in 99121, along with details on where in 99121 and at what speeds.
Ziply DSL in 99121, WA
Ziply DSL coverage
About 64.44%, or 87 people, have Ziply DSL internet available to them in the zip. The company covers the entire 99121 area. Ziply is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of 99121.
Ziply DSL download speeds
Ziply is the slowest when comparing download speeds to all other internet providers in 99121. Versus other DSL providers in the area, Ziply DSL is the fastest. There are 3 different maximum speeds throughout 99121. The fastest plan anyone in 99121 can order from Ziply goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 99121 customers is up to 19 Mbps.
Show all download speeds
- 6.9% up to 115.0 Mbps
- 3.4% up to 70.0 Mbps
- 89.7% up to 10.0 Mbps
Ziply DSL upload speeds
In 99121 download speeds tend to be faster than than upload speeds for Ziply DSL. Compared to other ISPs, Ziply is the slowest where upload speeds are concerned, and the fastest compared to other 99121 DSL providers. Ziply offers 3 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 99121 is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Ziply customers can get speeds up to 1.5 Mbps.
Show all upload speeds
- 6.9% up to 7.0 Mbps
- 3.4% up to 3.0 Mbps
- 89.7% up to 1.0 Mbps
Ziply Fiber in 99121, WA
Ziply fiber coverage
About 53.33%, or 72 people, have Ziply fiber internet available to them in the zip. The company covers the east, north, and northeast 99121 area. Ziply is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of 99121.
Ziply fiber download speeds
Ziply is the fastest when comparing download speeds to all other internet providers in 99121. Versus other fiber providers in the area, Ziply fiber is the fastest. There are no different maximum speeds throughout 99121. The fastest plan anyone in 99121 can order from Ziply goes up to 6,000 Mbps, and all 99121 customers can get this speed.
Show all download speeds
- 100.0% up to 6,000.0 Mbps
Ziply fiber upload speeds
In 99121 download speeds tend to be equal to than upload speeds for Ziply fiber. Compared to other ISPs, Ziply is the fastest where upload speeds are concerned, and the fastest compared to other 99121 fiber providers. Ziply offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 99121 is up to 6,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 6,000.0 Mbps
Rcabletv Fixed Wireless in 99121, WA
Rcabletv fixed wireless coverage
About 80.00%, or 108 people, have Rcabletv fixed wireless internet available to them in the zip. The company covers the east, north, northeast, west, southeast, central, and southwest 99121 area. Rcabletv is a small internet service provider internet service providers in the US, with internet service available in much of 99121.
Rcabletv fixed wireless download speeds
Rcabletv is below average when comparing download speeds to all other internet providers in 99121. Versus other fixed wireless providers in the area, Rcabletv fixed wireless is one of the fastest. There are no different maximum speeds throughout 99121. The fastest plan anyone in 99121 can order from Rcabletv goes up to 25 Mbps, and all 99121 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
Rcabletv fixed wireless upload speeds
In 99121 download speeds tend to be faster than than upload speeds for Rcabletv fixed wireless. Compared to other ISPs, Rcabletv is below average where upload speeds are concerned, and one of the fastest compared to other 99121 fixed wireless providers. Rcabletv offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 99121 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
T-Mobile Home Internet Fixed Wireless in 99121, WA
T-Mobile Home Internet fixed wireless coverage
About 8.89%, or 12 people, have T-Mobile Home Internet fixed wireless internet available to them in the zip. The company covers the southwest and northeast 99121 area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 99121.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in 99121. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is one of the fastest. There are no different maximum speeds throughout 99121. The fastest plan anyone in 99121 can order from T-Mobile Home Internet goes up to 25 Mbps, and all 99121 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In 99121 download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and one of the fastest compared to other 99121 fixed wireless providers. T-Mobile Home Internet offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 99121 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
99121 Internet by Area
This information is most helpful to those looking for homes or considering moving to 99121 or any of the areas nearby.
How does internet in 99121 compare to the rest of Washington?
Internet speeds in 99121 are faster versus the average speeds in Washington: 2,720 Mbps in Washington versus 3,283 Mbps in the zip. The state has similar internet availability compared to the zip. Average internet coverage in Washington is 98.85% versus 97.78% in 99121.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around 99121 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
- 99118, WA: less internet coverage, slower speeds
- 99146, WA: less internet coverage, slower speeds
- 99150, WA: less internet coverage, slower speeds
- 99160, WA: more internet coverage, slower speeds
- 98859, WA: less internet coverage, slower speeds
- 99157, WA: more internet coverage, slower speeds
- 98844, WA: less internet coverage, slower speeds
- 99152, WA: more internet coverage, slower speeds
- 98827, WA: less internet coverage, faster speeds
- 99153, WA: equal internet coverage, slower speeds
Zip Codes with Similar Populations
- 51008, IA: more internet coverage, slower speeds
- 49634, MI: more internet coverage, slower speeds
- 49826, MI: more internet coverage, slower speeds
- 99644, AK: less internet coverage, slower speeds
- 99640, AK: less internet coverage, slower speeds
- 98852, WA: less internet coverage, slower speeds
- 98575, WA: less internet coverage, slower speeds
- 49902, MI: less internet coverage, slower speeds
- 98536, WA: less internet coverage, slower speeds
- 98297, WA: less internet coverage, slower speeds