In Old Greenwich there are 8 residential internet providers covering 100.00% of the city. The average home can get speeds up to 7,998 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.
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8 Internet Service Providers in Old Greenwich
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 Old Greenwich are not shown.
Old Greenwich 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
Availability maps for all providers in Old Greenwich
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 100.00% of Old Greenwich. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is Optimum. Now you can call companies in Old Greenwich with more confidence that they might be available.
How fast are internet speeds in Old Greenwich?
The map below shows maximum internet speeds by area in Old Greenwich.
Internet Speed Key
The average Old Greenwich home can get up to 7,998 Mbps on their internet plan. For most people, the fastest download speed in the city is 8,000 Mbps, which 99.82% 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 7,000 Mbps. See the internet provider details below for info about their speed and coverage in Old Greenwich.
Internet speeds tend to be faster in the southeast parts of Old Greenwich, and slower in the south areas of the city.
What type of internet should I choose in Old Greenwich?
The fastest internet for you may vary based on where in Old Greenwich you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 100.00% of Old Greenwich homes.
- Cable is fastest for less than 1% of the city.
- 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 Old Greenwich homes.
Internet Market Health in Old Greenwich
Internet Competition Key
The map shows how competitive the Old Greenwich 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 Old Greenwich based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.2 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 3.4 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 5.8 (very healthy)
Overall, competition is very healthy.
Old Greenwich internet customers have the ability to buy internet service from 2 to 9 different providers, depending on where they live. For different types of service, Old Greenwich homes have between 2 and 4 options. The type(s) of service available are fiber, cable, fixed wireless, and dsl, though these may vary depending on the region within the city.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. Old Greenwich internet customers who want faster speeds have between 2 and 8 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, Old Greenwich is doing quite well.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Old Greenwich, along with details on where in Old Greenwich and at what speeds.
Frontier Communications Fiber in Old Greenwich, CT
Frontier fiber coverage
About 100.00%, or 7,349 people, have Frontier fiber internet available to them in the city. The company covers the entire Old Greenwich area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Old Greenwich.
Frontier Communications fiber download speeds
Frontier is above average when comparing download speeds to all other internet providers in Old Greenwich. Versus other fiber providers in the area, Frontier fiber is above average. There are no different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from Frontier goes up to 7,000 Mbps, and all Old Greenwich customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Frontier Communications fiber upload speeds
In Old Greenwich download speeds tend to be equal to than upload speeds for Frontier fiber. Compared to other ISPs, Frontier is above average where upload speeds are concerned, and above average compared to other Old Greenwich fiber providers. Frontier offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Optimum Cable in Old Greenwich, CT
Optimum cable coverage
About 100.00%, or 7,349 people, have Optimum cable internet available to them in the city. The company covers the entire Old Greenwich area. Optimum is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Old Greenwich.
Optimum cable download speeds
Optimum is below average when comparing download speeds to all other internet providers in Old Greenwich. Versus other cable providers in the area, Optimum cable is the fastest. There are no different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from Optimum goes up to 940 Mbps, and all Old Greenwich customers can get this speed.
Show all download speeds
- 100.0% up to 940.0 Mbps
Optimum cable upload speeds
In Old Greenwich download speeds tend to be faster than than upload speeds for Optimum cable. Compared to other ISPs, Optimum is below average where upload speeds are concerned, and the fastest compared to other Old Greenwich cable providers. Optimum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Optimum Fiber in Old Greenwich, CT
Optimum fiber coverage
About 99.82%, or 7,336 people, have Optimum fiber internet available to them in the city. The company covers the entire Old Greenwich area. Optimum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Old Greenwich.
Optimum fiber download speeds
Optimum is the fastest when comparing download speeds to all other internet providers in Old Greenwich. Versus other fiber providers in the area, Optimum fiber is the fastest. There are no different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from Optimum goes up to 8,000 Mbps, and all Old Greenwich customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
Optimum fiber upload speeds
In Old Greenwich download speeds tend to be equal to than upload speeds for Optimum fiber. Compared to other ISPs, Optimum is the fastest where upload speeds are concerned, and the fastest compared to other Old Greenwich fiber providers. Optimum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
Frontier Communications DSL in Old Greenwich, CT
Frontier DSL coverage
About 50.02%, or 3,676 people, have Frontier DSL internet available to them in the city. The company covers the entire Old Greenwich area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Old Greenwich.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in Old Greenwich. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 3 different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from Frontier goes up to 70 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Old Greenwich customers is up to 21 Mbps.
Show all download speeds
- 11.1% up to 70.0 Mbps
- 13.6% up to 45.0 Mbps
- 75.3% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Old Greenwich download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is the slowest where upload speeds are concerned, and the fastest compared to other Old Greenwich DSL providers. Frontier offers 3 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 6.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 1.9 Mbps.
Show all upload speeds
- 13.6% up to 6.0 Mbps
- 11.1% up to 3.0 Mbps
- 75.3% up to 1.0 Mbps
EarthLink Fiber in Old Greenwich, CT
EarthLink fiber coverage
About 13.28%, or 976 people, have EarthLink fiber internet available to them in the city. The company covers the west, southeast, east, and south Old Greenwich area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Old Greenwich.
EarthLink fiber download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Old Greenwich. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are no different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from EarthLink goes up to 940 Mbps, and all Old Greenwich customers can get this speed.
Show all download speeds
- 100.0% up to 940.0 Mbps
EarthLink fiber upload speeds
In Old Greenwich download speeds tend to be faster than than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other Old Greenwich fiber providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 880 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 880.0 Mbps
Verizon Fiber in Old Greenwich, CT
Verizon fiber coverage
About 13.28%, or 976 people, have Verizon fiber internet available to them in the city. The company covers the west, southeast, east, and south Old Greenwich 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 Old Greenwich.
Verizon fiber download speeds
Verizon is below average when comparing download speeds to all other internet providers in Old Greenwich. Versus other fiber providers in the area, Verizon fiber is one of the slowest. There are no different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from Verizon goes up to 940 Mbps, and all Old Greenwich customers can get this speed.
Show all download speeds
- 100.0% up to 940.0 Mbps
Verizon fiber upload speeds
In Old Greenwich download speeds tend to be faster than than upload speeds for Verizon fiber. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and one of the slowest compared to other Old Greenwich fiber providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 880 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 880.0 Mbps
EarthLink Fixed Wireless in Old Greenwich, CT
EarthLink fixed wireless coverage
About 76.12%, or 5,594 people, have EarthLink fixed wireless internet available to them in the city. The company covers the entire Old Greenwich area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Old Greenwich.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Old Greenwich. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are 2 different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Old Greenwich customers is up to 46 Mbps.
Show all download speeds
- 27.6% up to 100.0 Mbps
- 72.4% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In Old Greenwich download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other Old Greenwich fixed wireless providers. EarthLink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, EarthLink customers can get speeds up to 7.7 Mbps.
Show all upload speeds
- 27.6% up to 20.0 Mbps
- 72.4% up to 3.0 Mbps
AT&T Fixed Wireless in Old Greenwich, CT
AT&T fixed wireless coverage
About 76.12%, or 5,594 people, have AT&T fixed wireless internet available to them in the city. The company covers the entire Old Greenwich area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Old Greenwich.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in Old Greenwich. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are 2 different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Old Greenwich customers is up to 46 Mbps.
Show all download speeds
- 27.6% up to 100.0 Mbps
- 72.4% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In Old Greenwich download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the slowest compared to other Old Greenwich fixed wireless providers. AT&T offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, AT&T customers can get speeds up to 7.7 Mbps.
Show all upload speeds
- 27.6% up to 20.0 Mbps
- 72.4% up to 3.0 Mbps
T-Mobile Home Internet Fixed Wireless in Old Greenwich, CT
T-Mobile Home Internet fixed wireless coverage
About 71.52%, or 5,256 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire Old Greenwich 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 Old Greenwich.
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 Old Greenwich. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Old Greenwich customers is up to 63 Mbps.
Show all download speeds
- 50.8% up to 100.0 Mbps
- 49.2% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Old Greenwich download speeds tend to be faster than 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 average compared to other Old Greenwich fixed wireless providers. T-Mobile Home Internet offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 12 Mbps.
Show all upload speeds
- 50.8% up to 20.0 Mbps
- 49.2% up to 3.0 Mbps
Verizon Fixed Wireless in Old Greenwich, CT
Verizon fixed wireless coverage
About 19.10%, or 1,404 people, have Verizon fixed wireless internet available to them in the city. The company covers the north, southeast, northwest, east, and northeast Old Greenwich area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Old Greenwich.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Old Greenwich. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout Old Greenwich. The fastest plan anyone in Old Greenwich can order from Verizon goes up to 300 Mbps, and all Old Greenwich customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Old Greenwich download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and the fastest compared to other Old Greenwich fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Old Greenwich is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Old Greenwich Internet by Area
This information is most helpful to those looking for homes or considering moving to Old Greenwich or any of the areas nearby.
How does internet in Old Greenwich compare to the rest of Connecticut?
Internet speeds in Old Greenwich are much faster versus the average speeds in Connecticut: 6,732 Mbps in Connecticut versus 7,998 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in Connecticut is 98.58% versus 100.00% in Old Greenwich.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Old Greenwich are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Riverside, CT: less internet coverage, slower speeds
- Cos Cob, CT: less internet coverage, slower speeds
- Stamford, CT: less internet coverage, slower speeds
- Greenwich, CT: less internet coverage, slower speeds
- Darien, CT: equal internet coverage, slower speeds
- Port Chester, NY: less internet coverage, slower speeds
- Rye Brook, NY: equal internet coverage, slower speeds
- Purchase, NY: less internet coverage, slower speeds
- Rye, NY: less internet coverage, slower speeds
- Harrison, NY: less internet coverage, slower speeds
Cities with Similar Populations
- Mound, MN: equal internet coverage, slower speeds
- Poolesville, MD: less internet coverage, slower speeds
- Polk City, IA: less internet coverage, slower speeds
- Point Pleasant, WV: less internet coverage, slower speeds
- Pine Brook, NJ: less internet coverage, slower speeds
- Mount Vernon, KY: less internet coverage, slower speeds
- Mount Gilead, OH: less internet coverage, slower speeds
- Mount Carmel, PA: less internet coverage, slower speeds
- Mount Carmel, IL: less internet coverage, slower speeds
- Port Isabel, TX: less internet coverage, slower speeds