In 03873 there are 2 residential DSL providers covering 25.56% of the zip. 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 03873, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in 03873, NH please click below.
DSL Internet Service Providers in 03873
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 03873 are not shown.
03873 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 03873 is DSL internet available?
DSL Internet Availability Key
DSL is available in 25.56% of 03873. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Fidium. Call one of the companies with service in 03873 above to see who has service at your home.
How fast is DSL internet in 03873?
The map below shows maximum DSL internet speeds by area in 03873.
DSL Internet Speed Key
The average 03873 home can get up to 10 Mbps on their DSL internet plan. The fastest DSL download speed in the zip is 10 Mbps, which 25.56% of residents can get.
Is DSL the fastest internet I can get in 03873?
The fastest internet for you may vary based on where in 03873 you live. In general, cable competes most often with DSL in the zip.
- Fiber is the fastest internet type for 16.42% of 03873 homes.
- Cable is fastest for 83.58% of the zip.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of 03873 homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in 03873, along with details on where in 03873 and at what speeds.
Fidium Fiber DSL in 03873, NH
Fidium DSL coverage
About 25.56%, or 1,658 people, have Fidium DSL internet available to them in the zip. The company covers the northwest, central, southwest, east, southeast, west, and south 03873 area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 03873.
Fidium Fiber DSL download speeds
Fidium is one of the slowest when comparing download speeds to all other internet providers in 03873. Versus other DSL providers in the area, Fidium DSL is one of the fastest. There are no different maximum speeds throughout 03873. The fastest plan anyone in 03873 can order from Fidium goes up to 10 Mbps, and all 03873 customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In 03873 download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is one of the slowest where upload speeds are concerned, and one of the fastest compared to other 03873 DSL providers. Fidium offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 03873 is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Granite State Communications DSL in 03873, NH
Granite State Communications DSL coverage
About 3.42%, or 222 people, have Granite State Communications DSL internet available to them in the zip. The company covers the southwest 03873 area. Granite State Communications is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of 03873.
Granite State Communications DSL download speeds
Granite State Communications is one of the slowest when comparing download speeds to all other internet providers in 03873. Versus other DSL providers in the area, Granite State Communications DSL is one of the fastest. There are no different maximum speeds throughout 03873. The fastest plan anyone in 03873 can order from Granite State Communications goes up to 10 Mbps, and all 03873 customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Granite State Communications DSL upload speeds
In 03873 download speeds tend to be faster than than upload speeds for Granite State Communications DSL. Compared to other ISPs, Granite State Communications is one of the slowest where upload speeds are concerned, and one of the fastest compared to other 03873 DSL providers. Granite State Communications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 03873 is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
03873 DSL by Area
This information is most helpful to those looking for homes or considering moving to 03873 or any of the areas nearby.
How does DSL internet in 03873 compare to the rest of New Hampshire?
DSL internet speeds in 03873 are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 10 Mbps in the zip. The state has similar DSL availability compared to the zip. Average DSL coverage in New Hampshire is 0.00% versus 25.56% in 03873.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around 03873 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 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
- 03841, NH: more DSL coverage, faster speeds
- 03819, NH: less DSL coverage, similar speeds
- 03036, NH: more DSL coverage, similar speeds
- 03826, NH: more DSL coverage, faster speeds
- 03044, NH: more DSL coverage, similar speeds
- 03848, NH: more DSL coverage, similar speeds
- 03038, NH: more DSL coverage, faster speeds
- 03077, NH: more DSL coverage, faster speeds
- 03811, NH: more DSL coverage, similar speeds
- 03865, NH: more DSL coverage, faster speeds
Zip Codes with Similar Populations
- 39341, MS: more DSL coverage, similar speeds
- 46552, IN: more DSL coverage, faster speeds
- 87901, NM: more DSL coverage, faster speeds
- 87313, NM: less DSL coverage, faster speeds
- 45817, OH: more DSL coverage, faster speeds
- 45656, OH: more DSL coverage, faster speeds
- 45065, OH: more DSL coverage, faster speeds
- 24101, VA: more DSL coverage, faster speeds
- 44050, OH: more DSL coverage, faster speeds
- 75114, TX: more DSL coverage, faster speeds