In 21638 there are 3 residential Fiber providers covering 99.92% of the zip. The average home can get speeds up to 9,838 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 21638, MD.
To see availability maps for all providers including fiber, cable, DSL, and more in 21638, MD please click below.
Fiber Internet Service Providers in 21638
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 21638 are not shown.
21638 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 21638 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 99.92% of 21638. 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 21638 above to see who has service at your home.
How fast is fiber internet in 21638?
The map below shows maximum fiber internet speeds by area in 21638.
Fiber Internet Speed Key
The average 21638 home can get up to 9,838 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 10,000 Mbps, which 98.12% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.80% 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 21638.
Fiber internet speeds tend to be faster in the southeast parts of 21638, and slower in the south areas of the zip.
Is fiber the fastest internet I can get in 21638?
The fastest internet for you may vary based on where in 21638 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 99.92% of 21638 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 21638 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 21638, along with details on where in 21638 and at what speeds.
Talkie Communications Fiber in 21638, MD
Talkie Communications fiber coverage
About 98.12%, or 4,963 people, have Talkie Communications fiber internet available to them in the zip. The company covers the southeast, east, central, north, northwest, west, and northeast 21638 area. Talkie Communications is a large internet service provider internet service providers in the US, with internet service available in most of 21638.
Talkie Communications fiber download speeds
Talkie Communications is the fastest when comparing download speeds to all other internet providers in 21638. Versus other fiber providers in the area, Talkie Communications fiber is the fastest. There are no different maximum speeds throughout 21638. The fastest plan anyone in 21638 can order from Talkie Communications goes up to 10,000 Mbps, and all 21638 customers can get this speed.
Show all download speeds
- 100.0% up to 10,000.0 Mbps
Talkie Communications fiber upload speeds
In 21638 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 21638 fiber providers. Talkie Communications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21638 is up to 10,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10,000.0 Mbps
XFINITY from Comcast Fiber in 21638, MD
XFINITY fiber coverage
About 85.75%, or 4,337 people, have XFINITY fiber internet available to them in the zip. The company covers the southeast, east, north, central, northwest, west, south, and northeast 21638 area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of 21638.
XFINITY from Comcast fiber download speeds
XFINITY is below average when comparing download speeds to all other internet providers in 21638. Versus other fiber providers in the area, XFINITY fiber is one of the slowest. There are no different maximum speeds throughout 21638. The fastest plan anyone in 21638 can order from XFINITY goes up to 1,000 Mbps, and all 21638 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
XFINITY from Comcast fiber upload speeds
In 21638 download speeds tend to be equal to than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and below average compared to other 21638 fiber providers. XFINITY offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21638 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Atlantic Broadband Fiber in 21638, MD
Atlantic Broadband fiber coverage
About 34.32%, or 1,736 people, have Atlantic Broadband fiber internet available to them in the zip. The company covers the southeast, north, northwest, and central 21638 area. Atlantic Broadband is a large internet service provider internet service providers in the US, with internet service available in a small portion of 21638.
Atlantic Broadband fiber download speeds
Atlantic Broadband is below average when comparing download speeds to all other internet providers in 21638. Versus other fiber providers in the area, Atlantic Broadband fiber is one of the slowest. There are no different maximum speeds throughout 21638. The fastest plan anyone in 21638 can order from Atlantic Broadband goes up to 1,000 Mbps, and all 21638 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Atlantic Broadband fiber upload speeds
In 21638 download speeds tend to be faster than than upload speeds for Atlantic Broadband fiber. Compared to other ISPs, Atlantic Broadband is below average where upload speeds are concerned, and the slowest compared to other 21638 fiber providers. Atlantic Broadband offers 2 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 21638 is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 600 Mbps. On average, Atlantic Broadband customers can get speeds up to 818 Mbps.
Show all upload speeds
- 54.5% up to 1,000.0 Mbps
- 45.5% up to 600.0 Mbps
21638 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 21638 or any of the areas nearby.
How does fiber internet in 21638 compare to the rest of Maryland?
Fiber internet speeds in 21638 are much faster versus the average speeds in Maryland: 0.00 Mbps in Maryland versus 9,838 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Maryland is 0.00% versus 99.92% in 21638.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 21638 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
- 21658, MD: less fiber coverage, slower speeds
- 21619, MD: less fiber coverage, slower speeds
- 21666, MD: less fiber coverage, slower speeds
- 21679, MD: less fiber coverage, slower speeds
- 21624, MD: less fiber coverage, slower speeds
- 21647, MD: more fiber coverage, slower speeds
- 21617, MD: less fiber coverage, slower speeds
- 21625, MD: less fiber coverage, slower speeds
- 21657, MD: less fiber coverage, slower speeds
- 21409, MD: more fiber coverage, slower speeds
Zip Codes with Similar Populations
- 81137, CO: less fiber coverage, slower speeds
- 25506, WV: less fiber coverage, slower speeds
- 75831, TX: less fiber coverage, slower speeds
- 24801, WV: less fiber coverage, slower speeds
- 76059, TX: less fiber coverage, slower speeds
- 24563, VA: less fiber coverage, slower speeds
- 77050, TX: less fiber coverage, slower speeds
- 78025, TX: less fiber coverage, slower speeds
- 78263, TX: less fiber coverage, slower speeds
- 22947, VA: less fiber coverage, slower speeds