8 Best Internet Providers in 21102, MD
Find internet availability by address in 21102, MD
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | 21102 ISP Report Card | Business Internet in 21102
| 21102 ISP Report Card | C+ | |
| Download Speed for Most Households | 3,161 Mbps | |
| Number of Internet Service Providers | 8 | |
| Real 21102 Customer Ratings | 0 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
21102 has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, and Fixed Wireless internet are available in the zip. Reviews are grouped by provider and the type of service they offer, covering all 3 available internet technologies in 21102.
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21102 has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, and Fixed Wireless internet are available in the zip. Reviews are grouped by provider and the type of service they offer, covering all 3 available internet technologies in 21102.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
XFINITY
Connection
Customer Rating
Fiber
Cable
Antietam Broadband
Connection
Customer Rating
Fiber
EarthLink
Connection
Customer Rating
Fixed Wireless
T-Mobile Home Internet
Connection
Customer Rating
Fixed Wireless
Above are the top 4 providers in 21102, MD for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your zip.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local 21102 ratings may vary and are shown below.
Who is the Best Internet Provider in 21102, MD?
Verizon is the best internet provider in 21102 based on Maryland customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Verizon had the best reviews at the local, state, and national levels versus all available providers in 21102, making it a solid recommendation among providers with reviews. Unfortunately, Verizon is an option for 20.83% of the zip.
or call 1-833-213-7018
The chart and table below show average customer ratings from customers in 21102, Maryland, and customers throughout the country.
Top Rated Internet Providers in 21102
Local, State, and National Ratings for all 21102 Internet Providers
| ISP / Tech Type | 21102 Overall | Maryland Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (61) | (723) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| AT&T | (0) | (3) | (924) | View Plans | ||
| Antietam Broadband | (0) | (9) | (9) | View Plans | ||
| XFINITY | (0) | (65) | (2164) | View Plans | ||
| T-Mobile Home Internet | (0) | (9) | (284) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Believe Wireless | (0) | (0) | (0) | View Plans | ||
| Quantum Internet Service | (0) | (0) | (0) | View Plans |
Based on 150 reviews from Maryland internet customers, Verizon is the best internet service provider for 21102 residents. Verizon was rated at an average of 3.67 out of 5 in our report for overall customer satisfaction. EarthLink wins for second-place in Maryland, with 3.50 out of 5 stars and 82.9% coverage in 21102.
At a national level, based on 4145 national reviews for any of the providers listed above, Antietam Broadband is rated higher than any other provider, with a rating of 3.42 out of 5.
Which Providers are Available at my Home in 21102?
a different provider.

Internet Availability Key
Speeds and coverage vary within the zip, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in 21102?
Based on both FCC data and unbiased customer ratings in 21102, the fastest internet in the zip comes from Antietam Broadband.
Data Reported to FCC by ISPs: Average Maximum Available in 21102
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Antietam Broadband | 5,000 Mbps | ||
| XFINITY from Comcast | 2,000 Mbps | ||
| Verizon | 300 Mbps | ||
| AT&T | 100 Mbps | ||
| EarthLink | 100 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| Quantum Internet Service | 30 Mbps | ||
| HughesNet | 25 Mbps | ||
| Believe Wireless | 10 Mbps |
Customer Ratings for Internet Provider Speeds in 21102
| ISP / Tech Type | 21102 Speed | Maryland Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Antietam Broadband | (0) | (9) | (9) | View Plans | ||
| Verizon | (0) | (61) | (723) | View Plans | ||
| XFINITY | (0) | (65) | (2164) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| AT&T | (0) | (3) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (9) | (284) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Believe Wireless | (0) | (0) | (0) | View Plans | ||
| Quantum Internet Service | (0) | (0) | (0) | View Plans |
Based on data reported by 21102 ISPs to the FCC, the fastest speeds in the zip are available through Antietam Broadband. The company offers speeds up to 5,000 Mbps in 21102. Therefore, the average customer can get up to 5,000 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
However, actual customers in the zip rated their satisfaction with internet speed highest with Antietam Broadband. This indicates Antietam Broadband reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in 21102?
Maryland customers rate EarthLink as the cheapest internet service provider in state. Data comes from customers in the state rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
EarthLink received a local rating of 3.50 out of 5, which is much lower than the average across all internet providers in the country. Verizon is rated in second place for affordability by the company’s 21102 customers with an average price rating of 3.48 out of 5.
The chart and graph below show how customers in 21102, Maryland, and the United States rated the affordability of their internet service.
Rated Affordability in 21102
| ISP / Tech Type | 21102 Affordability | Maryland Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| EarthLink | (0) | (2) | (12) | View Plans | ||
| Verizon | (0) | (61) | (723) | View Plans | ||
| XFINITY | (0) | (65) | (2164) | View Plans | ||
| AT&T | (0) | (3) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (9) | (284) | View Plans | ||
| Antietam Broadband | (0) | (9) | (9) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans | ||
| Believe Wireless | (0) | (0) | (0) | View Plans | ||
| Quantum Internet Service | (0) | (0) | (0) | View Plans |
21102 Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the zip and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for 21102 below, including the metrics used and how 21102 compares to the rest of Maryland and nation.
| Metric
(hover for details)
|
21102 | Maryland | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in 21102 that have a Fiber internet connection available to their home. | 54.66% | 75.50% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 3,161 Mbps | 2,041 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for 21102. | 4.5 | 6.0 | 6.8 |
| Average Household SizeA larger household size in a zip indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.8 | 2.7 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 13% | 17% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 96% | 96% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 92% | 92% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 72% | 80% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 72% | 81% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
21102 ISP Report Card & Digital Connectivity Index
The ISP Report Card in 21102 is C+, which is better than other zip codes. The local demand for broadband internet connectivity in 21102 is high with a score of 70 / 100 in our Digital Connectivity Index. This means that internet service providers operating in 21102 have done a good job meeting the needs of its residents.
The 21102 ISP Report Card evaluates the zip on availability and speed metrics compared to other zip codes in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a zip needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
92% of 21102 households have an internet connection despite having 99.80% availability. 72% of households have fiber, cable, or DSL, 6% have satellite, 0% are still on dial-up, and 3% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 72% of households have a broadband connection such as fiber, cable or DSL available to their home, 72% subscribe to it. A large amount of 21102 residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Zip Codes Compare to 21102?
- ISP Report Card: B
- Digital Connectivity Index: 72 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 58 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 59 / 100
How Much Speed does a 21102 Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in 21102 is 2.8, which is larger than the Maryland average of 2.7 and larger than the national average of 2.7. 21102's average household income is $116,118 which is higher than the Maryland average of $115,317 and much higher than the national average of $90,606. Homes with more people living in them and with higher incomes tend to indicate more devices being used more often.
21102 also has 14% of its population enrolled in school between the 6th grade and college level, this is lower than the Maryland average of 17%. Additionally, 13% of residents work from home, which is lower than the 17% of residents in Maryland who work from home. This and other factors you can see above show us that the community of 21102 has a very high need for internet connectivity and speeds.
Compared to the rest of the country, 21102 households are more technology-engaged. 96% of households have some sort of computing device, 91% have desktops or laptops in the home, and 92% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in 21102?
Antietam Broadband Fiber in 21102, MD
Antietam Broadband offers Fiber service to 46.0% of 21102 homes. Across the zip, Antietam Broadband Fiber is the only type of service available from the company, with speeds up to 5,000 Mbps
XFINITY Fiber in 21102, MD
XFINITY from Comcast offers Fiber service to 15.2% of 21102 homes. Across the zip, XFINITY Fiber has speeds up to 1,744 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 250, with an average of 181 Mbps throughout the zip. XFINITY Fiber is rated about the same as other types of internet service available in 21102 from XFINITY in terms of customer satisfaction.
Which Cable Internet Providers are Available in 21102?
XFINITY Cable in 21102, MD
XFINITY from Comcast offers Cable service to 98.2% of 21102 homes. Across the zip, XFINITY Cable has speeds up to 1,775 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 250, with an average of 190 Mbps throughout the zip. XFINITY Cable is rated about the same as other types of internet service available in 21102 from XFINITY in terms of customer satisfaction.
Which DSL Internet Providers are Available in 21102?
According to the most recently submitted data by internet service providers to the FCC, there are currently no DSL providers available in 21102, MD.
Which Fixed Wireless and LTE Internet Providers are Available in 21102?
T-Mobile Home Internet Fixed Wireless in 21102, MD
T-Mobile Home Internet offers Fixed Wireless service to 97.7% of 21102 homes. Across the zip, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 77 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 15 Mbps throughout the zip.
EarthLink Fixed Wireless in 21102, MD
EarthLink offers Fixed Wireless service to 82.9% of 21102 homes. Across the zip, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 38 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 5.9 Mbps throughout the zip.
AT&T Fixed Wireless in 21102, MD
AT&T offers Fixed Wireless service to 82.9% of 21102 homes. Across the zip, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 38 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 5.9 Mbps throughout the zip.
Verizon Fixed Wireless in 21102, MD
Verizon offers Fixed Wireless service to 20.8% of 21102 homes. Across the zip, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
Quantum Internet Service Fixed Wireless in 21102, MD
Quantum Internet Service offers Fixed Wireless service to 2.0% of 21102 homes. Across the zip, Quantum Internet Service Fixed Wireless is the only type of service available from the company, with speeds up to 30 Mbps
Believe Wireless Fixed Wireless in 21102, MD
Believe Wireless offers Fixed Wireless service to 2.0% of 21102 homes. Across the zip, Believe Wireless Fixed Wireless is the only type of service available from the company, with speeds up to 10 Mbps
Which ISP Should You Choose in 21102?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in 21102 is Verizon.
- The fastest internet provider should be Antietam Broadband. Considering speed for the money and reliability in speeds, Antietam Broadband may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in 21102 is EarthLink.
- Viasat, XFINITY from Comcast, and HughesNet has the broadest coverage in 21102, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does 21102 compare to other cities with a similar population?
To see how 21102 stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to 21102's C+ ISP Report Card and 70 / 100 Digital Connectivity Index.
- ISP Report Card: B+
- Digital Connectivity Index: 79 / 100
- ISP Report Card: B
- Digital Connectivity Index: 34 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 56 / 100
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