In 21678 there are 2 residential Fiber providers covering 98.69% of the zip. The average home can get speeds up to 9,468 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 Fiber internet providers in 21678, MD.
To see availability maps for all providers including fiber, cable, DSL, and more in 21678, MD please click below.
Fiber Internet Service Providers in 21678
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 21678 are not shown.
21678 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 21678 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 98.69% of 21678. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Talkie Communications. Call one of the companies with service in 21678 above to see who has service at your home.
How fast is fiber internet in 21678?
The map below shows maximum fiber internet speeds by area in 21678.
Fiber Internet Speed Key
The average 21678 home can get up to 9,468 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 10,000 Mbps, which 92.86% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 5.83% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in 21678.
Fiber internet speeds tend to be faster in the south parts of 21678, and slower in the east areas of the zip.
Is fiber the fastest internet I can get in 21678?
The fastest internet for you may vary based on where in 21678 you live. In general, satellite competes most often with fiber in the zip.
- Fiber is the fastest internet type for 98.69% of 21678 homes.
- Cable is fastest for less than 1% 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 21678 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 21678, along with details on where in 21678 and at what speeds.
Talkie Communications Fiber in 21678, MD
Talkie Communications fiber coverage
About 92.86%, or 2,054 people, have Talkie Communications fiber internet available to them in the zip. The company covers the entire 21678 area. Talkie Communications is a large internet service provider internet service providers in the US, with internet service available in most of 21678.
Talkie Communications fiber download speeds
Talkie Communications is the fastest when comparing download speeds to all other internet providers in 21678. Versus other fiber providers in the area, Talkie Communications fiber is the fastest. There are no different maximum speeds throughout 21678. The fastest plan anyone in 21678 can order from Talkie Communications goes up to 10,000 Mbps, and all 21678 customers can get this speed.
Show all download speeds
- 100.0% up to 10,000.0 Mbps
Talkie Communications fiber upload speeds
In 21678 download speeds tend to be equal to than upload speeds for Talkie Communications fiber. Compared to other ISPs, Talkie Communications is the fastest where upload speeds are concerned, and the fastest compared to other 21678 fiber providers. Talkie Communications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21678 is up to 10,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10,000.0 Mbps
THINKBIG NETWORKS Fiber in 21678, MD
THINKBIG NETWORKS fiber coverage
About 54.70%, or 1,210 people, have THINKBIG NETWORKS fiber internet available to them in the zip. The company covers the south, southeast, and east 21678 area. THINKBIG NETWORKS is a large internet service provider internet service providers in the US, with internet service available in a majority of 21678.
THINKBIG NETWORKS fiber download speeds
THINKBIG NETWORKS is below average when comparing download speeds to all other internet providers in 21678. Versus other fiber providers in the area, THINKBIG NETWORKS fiber is the slowest. There are no different maximum speeds throughout 21678. The fastest plan anyone in 21678 can order from THINKBIG NETWORKS goes up to 1,000 Mbps, and all 21678 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
THINKBIG NETWORKS fiber upload speeds
In 21678 download speeds tend to be equal to than upload speeds for THINKBIG NETWORKS fiber. Compared to other ISPs, THINKBIG NETWORKS is below average where upload speeds are concerned, and the slowest compared to other 21678 fiber providers. THINKBIG NETWORKS offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21678 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
21678 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 21678 or any of the areas nearby.
How does fiber internet in 21678 compare to the rest of Maryland?
Fiber internet speeds in 21678 are much faster versus the average speeds in Maryland: 0.00 Mbps in Maryland versus 9,468 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Maryland is 0.00% versus 98.69% in 21678.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 21678 are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber 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
- 21667, MD: more fiber coverage, faster speeds
- 21610, MD: less fiber coverage, slower speeds
- 21620, MD: less fiber coverage, slower speeds
- 21645, MD: less fiber coverage, faster speeds
- 21628, MD: more fiber coverage, faster speeds
- 21930, MD: less fiber coverage, slower speeds
- 21651, MD: less fiber coverage, slower speeds
- 21635, MD: less fiber coverage, slower speeds
- 21661, MD: less fiber coverage, slower speeds
- 21623, MD: less fiber coverage, faster speeds
Zip Codes with Similar Populations
- 43002, OH: less fiber coverage, slower speeds
- 74032, OK: less fiber coverage, slower speeds
- 37727, TN: less fiber coverage, slower speeds
- 53923, WI: less fiber coverage, slower speeds
- 39834, GA: less fiber coverage, slower speeds
- 43164, OH: less fiber coverage, slower speeds
- 43527, OH: less fiber coverage, slower speeds
- 44048, OH: less fiber coverage, slower speeds
- 44867, OH: less fiber coverage, slower speeds
- 46058, IN: more fiber coverage, slower speeds