In 21230 there are 8 residential internet providers covering 99.34% of the zip. The average home can get speeds up to 990 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.

 

8 Internet Service Providers in 21230

XFINITY from Comcast | Cable

Availability:

98.30%

Avg. Speed:

1,000 Mbps

Verizon | DSL

Availability:

96.40%

Avg. Speed:

7.7 Mbps

Quantum | DSL

Availability:

75.05%

Avg. Speed:

10 Mbps

Verizon | Fiber

Availability:

4.02%

Avg. Speed:

940 Mbps

T-Mobile Home Internet | 4G & 5G Home Internet

Availability:

68.10%

Avg. Speed:

25 Mbps

Port Networks | Fixed Wireless

Availability:

24.84%

Avg. Speed:

14 Mbps

Quantum | Fixed Wireless

Availability:

3.70%

Avg. Speed:

40 Mbps

Believe Wireless | Fixed Wireless

Availability:

1.11%

Avg. Speed:

18 Mbps

To avoid wasting your time, providers with less than 1% coverage in 21230 are not shown.

 

21230 Satellite TV & Internet Providers

DISH Satellite TV

Availability:

100%

Avg. Speed:

N/A: Call to bundle.

 

DIRECTV Satellite TV

Availability:

100%

Avg. Speed:

N/A

Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.

 

HughesNet Satellite Internet

Availability:

100%

Avg. Speed:

15 Mbps

(High latency)

 

 

 

Where in 21230 is internet available?

21230, MD map of internet availability

Internet Availability Key

0%
50%
100%

 

Internet service is available in 99.34% of 21230. Areas in green are more likely to have fiber, cable, DSL, or fixed wireless internet service. Areas in red may be more reliant on satellite service. The most widely available provider is XFINITY. Call one of the companies with service in 21230 above to see who has service at your home, or click the technology to see where it can be found in 21230.

 

How fast are internet speeds in 21230?

The map below shows maximum internet speeds by area in 21230.

21230, MD map of local internet speeds

Internet Speed Key

1 Mbps
50 Mbps
1000 Mbps+

 

The average 21230 home can get up to 990 Mbps on their internet plan. For most people, the fastest download speed in the zip is 1,000 Mbps, which 98.30% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 5.0 Mbps. See the internet provider details below for info about their speed and coverage in 21230.

Internet speeds tend to be faster in the northwest parts of 21230, and slower in the southeast areas of the zip.

 

What type of internet should I choose in 21230?

The fastest internet for you may vary based on where in 21230 you live. If speed is your main concern, cable will be the fastest internet in the zip.

  • Fiber is the fastest internet type for less than 1% of 21230 homes.
  • Cable is fastest for 98.30% 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 21230 homes.

 

Internet Market Health in 21230

21230, MD map of internet competition

Internet Competition Key

4+ options
2 options
No alternatives

The map shows how competitive the 21230 internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.

Below are quick facts on internet competition and market health in 21230 based on what connections the average home has availabile:

  • Average number of internet service providers to a home: 3.7 (healthy)
  • Average types of service (fiber, cable, DSL, etc): 2.8 (healthy)
  • Average providers with broadband (25 Mbps+) speeds: 1.8 (unhealthy)

Overall, competition is healthy.

21230 internet customers have the ability to buy internet service from 1 to 6 different providers, depending on where they live. For different types of service, 21230 homes have between 1 and 4 options. The type(s) of service available are dsl, cable, fixed wireless, and fiber, though these may vary depending on the region within the zip.

When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. 21230 internet customers who want faster speeds have between 0 and 3 choices of companies offering speeds up to or over 25 Mbps.

More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, 21230 is doing better than most.

 

TV & Internet Providers in Depth

Below you'll find which TV and internet providers offer service in 21230, along with details on where in 21230 and at what speeds.

XFINITY from Comcast Cable in 21230, MD

XFINITY cable coverage

About 98.30%, or 32,999 people, have XFINITY cable internet available to them in the zip. The company covers the entire 21230 area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of 21230.

 

XFINITY from Comcast cable download speeds

XFINITY is the fastest when comparing download speeds to all other internet providers in 21230. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from XFINITY goes up to 1,000 Mbps, and all 21230 customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to XFINITY from Comcast customers in 21230. Cheaper plans with slower speeds may be available.

  • 100.0% up to 1,000.0 Mbps

 

XFINITY from Comcast cable upload speeds

In 21230 download speeds tend to be than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the fastest compared to other 21230 cable providers. XFINITY offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21230 is up to 35 Mbps, which is available to everyone covered.

Show all upload speeds

XFINITY's 21230 cable customers can expect the following upload speeds:

  • 100.0% up to 35.0 Mbps

 

 

 

Verizon DSL in 21230, MD

Verizon DSL coverage

About 96.40%, or 32,361 people, have Verizon DSL internet available to them in the zip. The company covers the entire 21230 area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in most of 21230.

 

Verizon DSL download speeds

Verizon is the slowest when comparing download speeds to all other internet providers in 21230. Versus other DSL providers in the area, Verizon DSL is the slowest. There are 7 different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from Verizon goes up to 15 Mbps, the slowest package only goes up to 1.0 Mbps, and the zip-wide average maximum speed for 21230 customers is up to 7.7 Mbps.

Show all download speeds

The following maximum speeds are marketed to Verizon customers in 21230. Cheaper plans with slower speeds may be available.

  • 15.0% up to 15.0 Mbps
  • 22.4% up to 10.0 Mbps
  • 25.7% up to 7.0 Mbps
  • 19.1% up to 5.0 Mbps
  • 15.0% up to 3.0 Mbps
  • 2.9% up to 1.5 Mbps
  • 0.0% up to 1.0 Mbps

 

Verizon DSL upload speeds

In 21230 download speeds tend to be than upload speeds for Verizon DSL. Compared to other ISPs, Verizon is the slowest where upload speeds are concerned, and the slowest compared to other 21230 DSL providers. Verizon offers 3 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 21230 is up to 1.0 Mbps. Some customers have slower plan choices, which only go up to 0.38 Mbps. On average, Verizon customers can get speeds up to 0.84 Mbps.

Show all upload speeds

Verizon's 21230 DSL customers can expect the following upload speeds:

  • 37.4% up to 1.0 Mbps
  • 59.7% up to 0.8 Mbps
  • 2.9% up to 0.4 Mbps

 

 

 

Quantum DSL in 21230, MD

Quantum DSL coverage

About 75.05%, or 25,192 people, have Quantum DSL internet available to them in the zip. The company covers the east, north, northeast, southwest, central, south, northwest, and west 21230 area. Quantum is a large internet service provider internet service providers in the US, with internet service available in much of 21230.

 

Quantum DSL download speeds

Quantum is below average when comparing download speeds to all other internet providers in 21230. Versus other DSL providers in the area, Quantum DSL is below average. There are no different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from Quantum goes up to 10 Mbps, and all 21230 customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to Quantum customers in 21230. Cheaper plans with slower speeds may be available.

  • 100.0% up to 10.0 Mbps

 

Quantum DSL upload speeds

In 21230 download speeds tend to be than upload speeds for Quantum DSL. Compared to other ISPs, Quantum is below average where upload speeds are concerned, and below average compared to other 21230 DSL providers. Quantum offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21230 is up to 1.0 Mbps, which is available to everyone covered.

Show all upload speeds

Quantum's 21230 DSL customers can expect the following upload speeds:

  • 100.0% up to 1.0 Mbps

 

 

 

Verizon Fiber in 21230, MD

Verizon fiber coverage

About 4.02%, or 1,348 people, have Verizon fiber internet available to them in the zip. The company covers the east, northeast, southwest, and north 21230 area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 21230.

 

Verizon fiber download speeds

Verizon is above average when comparing download speeds to all other internet providers in 21230. Versus other fiber providers in the area, Verizon fiber is the fastest. There are no different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from Verizon goes up to 940 Mbps, and all 21230 customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to Verizon customers in 21230. Cheaper plans with slower speeds may be available.

  • 100.0% up to 940.0 Mbps

 

Verizon fiber upload speeds

In 21230 download speeds tend to be than upload speeds for Verizon fiber. Compared to other ISPs, Verizon is the fastest where upload speeds are concerned, and the fastest compared to other 21230 fiber providers. Verizon offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21230 is up to 880 Mbps, which is available to everyone covered.

Show all upload speeds

Verizon's 21230 fiber customers can expect the following upload speeds:

  • 100.0% up to 880.0 Mbps

 

 

 

T-Mobile Home Internet in 21230, MD

T-Mobile Home Internet fixed wireless coverage

About 68.10%, or 22,861 people, have T-Mobile Home Internet fixed wireless internet available to them in the zip. The company covers the east, southwest, north, northeast, west, south, central, and northwest 21230 area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in much of 21230.

 

T-Mobile Home Internet fixed wireless download speeds

T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in 21230. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is above average. There are no different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from T-Mobile Home Internet goes up to 25 Mbps, and all 21230 customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to T-Mobile Home Internet customers in 21230. Cheaper plans with slower speeds may be available.

  • 100.0% up to 25.0 Mbps

 

T-Mobile Home Internet fixed wireless upload speeds

In 21230 download speeds tend to be than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and the slowest compared to other 21230 fixed wireless providers. T-Mobile Home Internet offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21230 is up to 3.0 Mbps, which is available to everyone covered.

Show all upload speeds

T-Mobile Home Internet's 21230 fixed wireless customers can expect the following upload speeds:

  • 100.0% up to 3.0 Mbps

 

 

 

Port Networks Fixed Wireless in 21230, MD

Port Networks fixed wireless coverage

About 24.84%, or 8,339 people, have Port Networks fixed wireless internet available to them in the zip. The company covers the east, northeast, north, central, and west 21230 area. Port Networks is a large internet service provider internet service providers in the US, with internet service available in a small portion of 21230.

 

Port Networks fixed wireless download speeds

Port Networks is below average when comparing download speeds to all other internet providers in 21230. Versus other fixed wireless providers in the area, Port Networks fixed wireless is the slowest. There are 4 different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from Port Networks goes up to 32 Mbps, the slowest package only goes up to 5.0 Mbps, and the zip-wide average maximum speed for 21230 customers is up to 14 Mbps.

Show all download speeds

The following maximum speeds are marketed to Port Networks customers in 21230. Cheaper plans with slower speeds may be available.

  • 3.2% up to 32.0 Mbps
  • 67.0% up to 16.0 Mbps
  • 29.2% up to 8.0 Mbps
  • 0.6% up to 5.0 Mbps

 

Port Networks fixed wireless upload speeds

In 21230 download speeds tend to be than upload speeds for Port Networks fixed wireless. Compared to other ISPs, Port Networks is below average where upload speeds are concerned, and below average compared to other 21230 fixed wireless providers. Port Networks offers 3 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 21230 is up to 8.0 Mbps. Some customers have slower plan choices, which only go up to 2.0 Mbps. On average, Port Networks customers can get speeds up to 3.5 Mbps.

Show all upload speeds

Port Networks's 21230 fixed wireless customers can expect the following upload speeds:

  • 3.2% up to 8.0 Mbps
  • 67.0% up to 4.0 Mbps
  • 29.8% up to 2.0 Mbps

 

 

 

Quantum Fixed Wireless in 21230, MD

Quantum fixed wireless coverage

About 3.70%, or 1,242 people, have Quantum fixed wireless internet available to them in the zip. The company covers the north and northeast 21230 area. Quantum is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 21230.

 

Quantum fixed wireless download speeds

Quantum is below average when comparing download speeds to all other internet providers in 21230. Versus other fixed wireless providers in the area, Quantum fixed wireless is the fastest. There are no different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from Quantum goes up to 40 Mbps, and all 21230 customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to Quantum customers in 21230. Cheaper plans with slower speeds may be available.

  • 100.0% up to 40.0 Mbps

 

Quantum fixed wireless upload speeds

In 21230 download speeds tend to be than upload speeds for Quantum fixed wireless. Compared to other ISPs, Quantum is below average where upload speeds are concerned, and the fastest compared to other 21230 fixed wireless providers. Quantum offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 21230 is up to 13 Mbps, which is available to everyone covered.

Show all upload speeds

Quantum's 21230 fixed wireless customers can expect the following upload speeds:

  • 100.0% up to 13.0 Mbps

 

 

 

Believe Wireless Fixed Wireless in 21230, MD

Believe Wireless fixed wireless coverage

About 1.11%, or 374 people, have Believe Wireless fixed wireless internet available to them in the zip. The company covers the east, northeast, and north 21230 area. Believe Wireless is a small internet service provider internet service providers in the US, with internet service available in a very small piece of 21230.

 

Believe Wireless fixed wireless download speeds

Believe Wireless is below average when comparing download speeds to all other internet providers in 21230. Versus other fixed wireless providers in the area, Believe Wireless fixed wireless is below average. There are 2 different maximum speeds throughout 21230. The fastest plan anyone in 21230 can order from Believe Wireless goes up to 20 Mbps, the slowest package only goes up to 9.0 Mbps, and the zip-wide average maximum speed for 21230 customers is up to 18 Mbps.

Show all download speeds

The following maximum speeds are marketed to Believe Wireless customers in 21230. Cheaper plans with slower speeds may be available.

  • 81.6% up to 20.0 Mbps
  • 18.4% up to 9.0 Mbps

 

Believe Wireless fixed wireless upload speeds

In 21230 download speeds tend to be than upload speeds for Believe Wireless fixed wireless. Compared to other ISPs, Believe Wireless is below average where upload speeds are concerned, and below average compared to other 21230 fixed wireless providers. Believe Wireless 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 21230 is up to 4.0 Mbps. Some customers have slower plan choices, which only go up to 2.0 Mbps. On average, Believe Wireless customers can get speeds up to 3.6 Mbps.

Show all upload speeds

Believe Wireless's 21230 fixed wireless customers can expect the following upload speeds:

  • 81.6% up to 4.0 Mbps
  • 18.4% up to 2.0 Mbps

 

 

 

 

21230 Internet by Area

This information is most helpful to those looking for homes or considering moving to 21230 or any of the areas nearby.

How does internet in 21230 compare to the rest of Maryland?

Internet speeds in 21230 are comparable versus the average speeds in Maryland: 970 Mbps in Maryland versus 990 Mbps in the zip. The state has similar internet availability compared to the zip. Average internet coverage in Maryland is 99.10% versus 99.34% in 21230.

What zip codes have widespread internet?

Internet coverage varies by zip code and neighborhood. Some examples in or around 21230 are shown below. You can enter any zip code here to see TV and internet providers by zip code.

Zip Code
Internet Coverage
99.56%
100.00%
100.00%
99.99%
99.98%
Zip Code
Internet Coverage
99.42%
99.07%
99.71%
99.88%
0.00%

What does internet service 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

  • 21223, MD: more internet coverage, faster speeds
  • 21201, MD: more internet coverage, slower speeds
  • 21202, MD: more internet coverage, slower speeds
  • 21231, MD: more internet coverage, slower speeds
  • 21217, MD: more internet coverage, slower speeds
  • 21225, MD: more internet coverage, slower speeds
  • 21227, MD: less internet coverage, faster speeds
  • 21229, MD: more internet coverage, faster speeds
  • 21205, MD: more internet coverage, faster speeds
  • 21216, MD: more internet coverage, faster speeds

Zip Codes with Similar Populations

  • 28056, NC: more internet coverage, slower speeds
  • 20723, MD: less internet coverage, faster speeds
  • 21136, MD: more internet coverage, slower speeds
  • 33462, FL: more internet coverage, faster speeds
  • 29407, SC: more internet coverage, faster speeds
  • 14612, NY: more internet coverage, slower speeds
  • 30161, GA: less internet coverage, slower speeds
  • 27205, NC: more internet coverage, slower speeds
  • 90062, CA: more internet coverage, slower speeds
  • 32084, FL: more internet coverage, faster speeds