In Duncan there are 3 residential DSL providers covering 47.14% of the city. The average home can get speeds up to 11 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 Duncan, OK.
To see availability maps for all providers including fiber, cable, DSL, and more in Duncan, OK please click below.
DSL Internet Service Providers in Duncan
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 Duncan are not shown.
Duncan 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 Duncan is DSL internet available?
DSL Internet Availability Key
DSL is available in 47.14% of Duncan. 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 Duncan above to see who has service at your home.
How fast is DSL internet in Duncan?
The map below shows maximum DSL internet speeds by area in Duncan.
DSL Internet Speed Key
The average Duncan home can get up to 11 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, 46.13% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Duncan.
DSL internet speeds tend to be faster in the southeast parts of Duncan, and slower in the east areas of the city.
Is DSL the fastest internet I can get in Duncan?
The fastest internet for you may vary based on where in Duncan you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 81.94% of Duncan homes.
- Cable is fastest for 9.57% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 7.94%.
- Satellite internet may be the only option for less than 1% of Duncan homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Duncan, along with details on where in Duncan and at what speeds.
EarthLink DSL in Duncan, OK
EarthLink DSL coverage
About 45.88%, or 11,474 people, have EarthLink DSL internet available to them in the city. The company covers the entire Duncan area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Duncan.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Duncan. Versus other DSL providers in the area, EarthLink DSL is one of the slowest. There are 2 different maximum speeds throughout Duncan. The fastest plan anyone in Duncan 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 Duncan customers is up to 10 Mbps.
Show all download speeds
- 1.2% up to 25.0 Mbps
- 98.8% up to 10.0 Mbps
EarthLink DSL upload speeds
In Duncan 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 Duncan 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 Duncan 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
- 1.2% up to 5.0 Mbps
- 98.8% up to 1.0 Mbps
AT&T DSL in Duncan, OK
AT&T DSL coverage
About 45.88%, or 11,474 people, have AT&T DSL internet available to them in the city. The company covers the entire Duncan area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of Duncan.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Duncan. Versus other DSL providers in the area, AT&T DSL is one of the slowest. There are 2 different maximum speeds throughout Duncan. The fastest plan anyone in Duncan 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 Duncan customers is up to 10 Mbps.
Show all download speeds
- 1.2% up to 25.0 Mbps
- 98.8% up to 10.0 Mbps
AT&T DSL upload speeds
In Duncan 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 Duncan 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 Duncan 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
- 1.2% up to 5.0 Mbps
- 98.8% up to 1.0 Mbps
Windstream DSL in Duncan, OK
Windstream DSL coverage
About 1.58%, or 394 people, have Windstream DSL internet available to them in the city. The company covers the southeast, east, southwest, west, and northwest Duncan area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Duncan.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Duncan. Versus other DSL providers in the area, Windstream DSL is average. There are 3 different maximum speeds throughout Duncan. The fastest plan anyone in Duncan can order from Windstream goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Duncan customers is up to 24 Mbps.
Show all download speeds
- 14.0% up to 100.0 Mbps
- 4.8% up to 50.0 Mbps
- 81.2% up to 10.0 Mbps
Windstream DSL upload speeds
In Duncan download speeds tend to be faster than than upload speeds for Windstream DSL. Compared to other ISPs, Windstream is below average where upload speeds are concerned, and average compared to other Duncan DSL providers. Windstream offers 3 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 Duncan is up to 17 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Windstream customers can get speeds up to 3.3 Mbps.
Show all upload speeds
- 14.0% up to 17.0 Mbps
- 4.8% up to 3.0 Mbps
- 81.2% up to 1.0 Mbps
Duncan DSL by Area
This information is most helpful to those looking for homes or considering moving to Duncan or any of the areas nearby.
How does DSL internet in Duncan compare to the rest of Oklahoma?
DSL internet speeds in Duncan are much faster versus the average speeds in Oklahoma: 0.00 Mbps in Oklahoma versus 11 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Oklahoma is 0.00% versus 47.14% in Duncan.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Duncan 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
- Empire City, OK: less DSL coverage, faster speeds
- Sunray, OK: more DSL coverage, faster speeds
- Marlow, OK: more DSL coverage, slower speeds
- Velma, OK: more DSL coverage, faster speeds
- Cox City, OK: less DSL coverage, faster speeds
- Countyline, OK: more DSL coverage, faster speeds
- Tussy, OK: less DSL coverage, faster speeds
- Geronimo, OK: less DSL coverage, slower speeds
- Ratliff City, OK: more DSL coverage, faster speeds
- Fort Sill, OK: less DSL coverage, faster speeds
Cities with Similar Populations
- Vero Beach South, FL: more DSL coverage, faster speeds
- Clinton, IA: more DSL coverage, faster speeds
- Clackamas, OR: more DSL coverage, faster speeds
- Warrensburg, MO: more DSL coverage, faster speeds
- Chanhassen, MN: more DSL coverage, faster speeds
- Centerville, OH: more DSL coverage, faster speeds
- Canby, OR: less DSL coverage, faster speeds
- Caledonia, WI: more DSL coverage, faster speeds
- Calabasas, CA: more DSL coverage, faster speeds
- Albemarle, NC: more DSL coverage, faster speeds