In Sulphur there are 3 residential DSL providers covering 72.04% of the city. The average home can get speeds up to 10 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.
This page contains all DSL internet providers in Sulphur, LA.
To see availability maps for all providers including fiber, cable, DSL, and more in Sulphur, LA please click below.
DSL Internet Service Providers in Sulphur
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 Sulphur are not shown.
Sulphur 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
Where in Sulphur is DSL internet available?
DSL Internet Availability Key
DSL is available in 72.04% of Sulphur. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Sulphur above to see who has service at your home.
How fast is DSL internet in Sulphur?
The map below shows maximum DSL internet speeds by area in Sulphur.
DSL Internet Speed Key
The average Sulphur home can get up to 10 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 69.97% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Sulphur.
DSL internet speeds tend to be faster in the southwest parts of Sulphur, and slower in the east areas of the city.
Is DSL the fastest internet I can get in Sulphur?
The fastest internet for you may vary based on where in Sulphur you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 67.50% of Sulphur homes.
- Cable is fastest for 29.79% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 2.46%.
- Satellite internet may be the only option for less than 1% of Sulphur homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Sulphur, along with details on where in Sulphur and at what speeds.
AT&T DSL in Sulphur, LA
AT&T DSL coverage
About 70.28%, or 24,072 people, have AT&T DSL internet available to them in the city. The company covers the entire Sulphur area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Sulphur.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Sulphur. Versus other DSL providers in the area, AT&T DSL is one of the slowest. There are 2 different maximum speeds throughout Sulphur. The fastest plan anyone in Sulphur can order from AT&T goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Sulphur customers is up to 10 Mbps.
Show all download speeds
- 0.5% up to 25.0 Mbps
- 99.5% up to 10.0 Mbps
AT&T DSL upload speeds
In Sulphur download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Sulphur DSL providers. AT&T offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Sulphur is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 1.0 Mbps.
Show all upload speeds
- 0.5% up to 5.0 Mbps
- 99.5% up to 1.0 Mbps
EarthLink DSL in Sulphur, LA
EarthLink DSL coverage
About 70.28%, or 24,072 people, have EarthLink DSL internet available to them in the city. The company covers the entire Sulphur area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Sulphur.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Sulphur. Versus other DSL providers in the area, EarthLink DSL is one of the slowest. There are 2 different maximum speeds throughout Sulphur. The fastest plan anyone in Sulphur can order from EarthLink goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Sulphur customers is up to 10 Mbps.
Show all download speeds
- 0.5% up to 25.0 Mbps
- 99.5% up to 10.0 Mbps
EarthLink DSL upload speeds
In Sulphur download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Sulphur DSL providers. EarthLink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Sulphur is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 1.0 Mbps.
Show all upload speeds
- 0.5% up to 5.0 Mbps
- 99.5% up to 1.0 Mbps
American Broadband DSL in Sulphur, LA
American Broadband DSL coverage
About 1.69%, or 579 people, have American Broadband DSL internet available to them in the city. The company covers the southwest and south Sulphur area. American Broadband is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Sulphur.
American Broadband DSL download speeds
American Broadband is below average when comparing download speeds to all other internet providers in Sulphur. Versus other DSL providers in the area, American Broadband DSL is average. There are no different maximum speeds throughout Sulphur. The fastest plan anyone in Sulphur can order from American Broadband goes up to 25 Mbps, and all Sulphur customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
American Broadband DSL upload speeds
In Sulphur download speeds tend to be faster than than upload speeds for American Broadband DSL. Compared to other ISPs, American Broadband is below average where upload speeds are concerned, and average compared to other Sulphur DSL providers. American Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Sulphur is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
Sulphur DSL by Area
This information is most helpful to those looking for homes or considering moving to Sulphur or any of the areas nearby.
How does DSL internet in Sulphur compare to the rest of Louisiana?
DSL internet speeds in Sulphur are much faster versus the average speeds in Louisiana: 0.00 Mbps in Louisiana versus 10 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Louisiana is 0.00% versus 72.04% in Sulphur.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Sulphur are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL internet look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Carlyss, LA: less DSL coverage, faster speeds
- Westlake, LA: less DSL coverage, slower speeds
- Buhler, LA: less DSL coverage, faster speeds
- Lake Charles, LA: less DSL coverage, faster speeds
- Perkins, LA: more DSL coverage, faster speeds
- Moss Bluff, LA: more DSL coverage, slower speeds
- Ged, LA: less DSL coverage, faster speeds
- Vinton, LA: less DSL coverage, slower speeds
- Holmwood, LA: less DSL coverage, slower speeds
- Toomey, LA: less DSL coverage, slower speeds
Cities with Similar Populations
- Media, PA: less DSL coverage, slower speeds
- Shelton, WA: more DSL coverage, faster speeds
- San Luis, AZ: less DSL coverage, faster speeds
- Opelousas, LA: less DSL coverage, slower speeds
- North Olmsted, OH: more DSL coverage, faster speeds
- Niles, MI: less DSL coverage, faster speeds
- Niceville, FL: more DSL coverage, faster speeds
- Mundelein, IL: more DSL coverage, faster speeds
- Montrose, CO: more DSL coverage, faster speeds
- Melrose Park, IL: more DSL coverage, faster speeds