Best Internet Providers in Greenwich, CT
All 5 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Greenwich, CT
Greenwich has 5 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, Fixed Wireless, and DSL internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Greenwich.
Ranks compare Greenwich with the 1,383 US suburban and regional cities (25,000 to 49,999 people), the tiers of our fastest-cities rankings.
The Best Internet in Greenwich, CT at a Glance
Greenwich Internet Providers, Ranked by Coverage, Speed and Customer Ratings
Optimum
Connection
Customer Rating
Fiber
Cable
EarthLink
Connection
Customer Rating
Fiber
Fixed Wireless
Verizon
Connection
Customer Rating
Fiber
Fixed Wireless
Providers with less than 1% coverage in this city are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
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 Greenwich ratings may vary and are shown below.
Who is the Best Internet Provider in Greenwich, CT?
T-Mobile Home Internet is the best internet provider in Greenwich based on Connecticut customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, T-Mobile Home Internet had the best reviews at the local, state, and national levels versus all available providers in Greenwich, making it a solid recommendation among providers with reviews. T-Mobile Home Internet is an option for 84.29% of the city.
Click here to get T-Mobile Home Internet
or call 1-833-601-2935
Which Providers are Available at my Home in Greenwich?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Greenwich
How Greenwich Compares to Places Its Size
Greenwich's report card score is in the top 9% and its connectivity index is in the top 15%.
| Measure | Greenwich | Rank among US suburban and regional cities (25,000 to 49,999 people) | Fairfield County | Connecticut | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 98.0% | top 15% | 97.3% | 93.9% | 71.5% | 25 places at 100.0% |
| Average top speed | 7,666 Mbps | top 6% | 7,553 Mbps | 6,892 Mbps | 3,486 Mbps | Hixson, TN (25,000 Mbps) |
| Providers at a typical address | 7 | bottom 46% | 7.3 | 6.8 | 7.1 | San Lorenzo, CA (13) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.7 | top 36% | 2.7 | 2.5 | 2.7 | Kiryas Joel, NY (5.1) |
| Workers who work from home | 26% | top 9% | 20% | 16% | 15% | Venice, CA (47%) |
| Homes with a computer, tablet or phone | 97% | top 32% | 96% | 96% | 96% | 16 places at 100% |
| Homes with internet | 95% | top 24% | 94% | 93% | 91% | 13 places at 99% |
| Homes on fiber, cable or DSL | 86% | top 17% | 82% | 80% | 76% | Burke, VA and Colleyville, TX and 3 more (94%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 92% | top 12% | 85% | 83% | 81% | University Park, TX (99%) |
| Median household income | $178,974 | top 4% | $136,343 | $111,414 | $93,246 | Scarsdale, NY ($244,191) |
| Residents in school (6th grade to college) | 16% | top 33% | 17% | 16% | 16% | Rexburg, ID (71%) |
Fiber reaches 98.0% of homes in Greenwich, against 97.3% across Fairfield County and 93.9% across Connecticut. Households in Greenwich are the same size as the US average (2.7 people against 2.7); 26% of workers work from home (US 15%); and the median household income is $178,974 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Greenwich
Which Fiber Internet Providers are Available in Greenwich?
Optimum Fiber in Greenwich, CT
Availability:
94.5%
Customer Rating:
(55)
Avg. Download Speed
8,000 Mbps
Optimum offers Fiber service to 94.5% of Greenwich homes. Across the city, Optimum Fiber has speeds up to 8,000 Mbps
EarthLink Fiber in Greenwich, CT
Availability:
93.0%
Customer Rating:
(6)
Avg. Download Speed
1,496 Mbps
EarthLink offers Fiber service to 93.0% of Greenwich homes. Across the city, EarthLink Fiber has speeds up to 1,496 Mbps, with speeds from 980 Mpbs up to 2,300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 880 and as high as 2,300, with an average of 1,436 Mbps throughout the city. EarthLink Fiber is rated about the same as other types of internet service available in Greenwich from EarthLink in terms of customer satisfaction.
Verizon Fiber in Greenwich, CT
Availability:
93.0%
Customer Rating:
(453)
Avg. Download Speed
1,496 Mbps
Verizon offers Fiber service to 93.0% of Greenwich homes. Across the city, Verizon Fiber has speeds up to 1,496 Mbps, with speeds from 980 Mpbs up to 2,300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 880 and as high as 2,300, with an average of 1,436 Mbps throughout the city. Verizon Fiber is rated about the same as other types of internet service available in Greenwich from Verizon in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Greenwich?
EarthLink Fixed Wireless in Greenwich, CT
Availability:
85.8%
Customer Rating:
(4)
Avg. Download Speed
47 Mbps
EarthLink offers Fixed Wireless service to 85.8% of Greenwich homes. Across the city, EarthLink Fixed Wireless has speeds up to 47 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 8.0 Mbps throughout the city.
AT&T Fixed Wireless in Greenwich, CT
Availability:
85.8%
Customer Rating:
(205)
Avg. Download Speed
47 Mbps
AT&T offers Fixed Wireless service to 85.8% of Greenwich homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 47 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 8.0 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Greenwich, CT
Availability:
84.3%
Customer Rating:
(342)
Avg. Download Speed
79 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 84.3% of Greenwich homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 79 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 city.
Verizon Fixed Wireless in Greenwich, CT
Availability:
63.5%
Customer Rating:
(362)
Avg. Download Speed
218 Mbps
Verizon offers Fixed Wireless service to 63.5% of Greenwich homes. Across the city, Verizon Fixed Wireless has speeds up to 218 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 16 Mbps throughout the city.
Which Cable Internet Providers are Available in Greenwich?
Optimum Cable in Greenwich, CT
Availability:
99.3%
Customer Rating:
(223)
Avg. Download Speed
940 Mbps
Optimum offers Cable service to 99.3% of Greenwich homes. Across the city, Optimum Cable has speeds up to 940 Mbps
Which DSL Internet Providers are Available in Greenwich?
According to the most recently submitted data by internet service providers to the FCC, there are currently no DSL providers available in Greenwich, CT.
Internet in Greenwich by Neighborhood and ZIP Code
Greenwich has 2 ZIP codes with their own pages. Each row links to that place’s page.
Neighborhoods in Greenwich
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in Greenwich
How Greenwich Compares to Nearby Places
The 10 places nearest to Greenwich that have their own pages are all within 6 miles, 6 of them in New York. Among them, Rye Brook, NY has the most homes with fiber (100.0%) and Purchase, NY the fewest (50.7%); Greenwich has 98.0%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Greenwich (this page) | 39,489 | 98.0% | 7,666 Mbps | 7 | A- | 86/100 |
| Stamford | 135,258 | 98.4% | 7,891 Mbps | 7 | A- | 77/100 |
| Port Chester, NY | 31,800 | 99.7% | 7,964 Mbps | 5.6 | A- | 75/100 |
| Harrison, NY | 22,580 | 98.5% | 7,578 Mbps | 5.2 | B+ | 92/100 |
| Rye, NY | 16,567 | 100.0% | 7,729 Mbps | 5.1 | B+ | 93/100 |
| Rye Brook, NY | 9,940 | 100.0% | 7,235 Mbps | 5.1 | B+ | 90/100 |
| Riverside | 8,843 | 99.3% | 7,962 Mbps | 6.9 | A- | 92/100 |
| Cos Cob | 8,049 | 99.7% | 7,891 Mbps | 6.7 | A- | 93/100 |
| Old Greenwich | 7,349 | 100.0% | 7,995 Mbps | 6.9 | A | 96/100 |
| West Harrison, NY | 5,777 | 100.0% | 7,512 Mbps | 5.7 | A- | 71/100 |
| Purchase, NY | 5,643 | 50.7% | 5,271 Mbps | 4.7 | C+ | 95/100 |
Who is the Fastest Internet Provider in Greenwich?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by T-Mobile Home Internet. On the other hand, based on data provided by the internet providers to the FCC, Optimum should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Greenwich
| Optimum | 8,000 |
|---|---|
| Verizon | 2,300 |
| EarthLink | 2,300 |
| Viasat | 100 |
| AT&T | 100 |
| T-Mobile Home Internet | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Greenwich. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Greenwich Internet Providers
Based on 19 reviews from Connecticut internet customers, T-Mobile Home Internet is the best internet service provider for Greenwich residents. T-Mobile Home Internet was rated at an average of 4.00 out of 5 in our report for overall customer satisfaction. Verizon wins for second-place in Connecticut, with 4.00 out of 5 stars and 98.0% coverage in Greenwich.
At a national level, based on 2503 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all Greenwich Internet Providers
The table below shows average customer ratings from customers in Greenwich, Connecticut, and customers throughout the country.
| ISP / Tech Type | Greenwich Overall | Connecticut Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (1) | (6) | (816) | View Plans | ||
| T-Mobile Home Internet |  (0) | (4) | (342) | View Plans | ||
| Optimum |  (1) | (9) | (279) | View Plans | ||
| HughesNet | (0) | (0) |  (25) | View Plans | ||
| AT&T | (0) | (0) | (1051) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans |
Customer Ratings for Internet Provider Speeds in Greenwich
Based on data reported by Greenwich ISPs to the FCC, the fastest speeds in the city are available through Optimum. The company offers speeds up to 8,000 Mbps in Greenwich. Therefore, the average customer can get up to 7,658 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with T-Mobile Home Internet. This indicates T-Mobile Home Internet reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Greenwich Speed | Connecticut Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (1) | (6) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (342) | View Plans | ||
| Optimum | (1) | (9) | (279) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| AT&T | (0) | (0) | (1051) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Who is the Cheapest Internet Provider in Greenwich?
Of the providers in Greenwich, customers rate T-Mobile Home Internet the best for price. Data comes from customers rating their satisfaction with pricing: in Greenwich where enough of them have reviewed a provider, otherwise across Connecticut or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
T-Mobile Home Internet is rated 4.00 out of 5 for price, which is higher than the average across all internet providers in the country. Verizon is rated second for affordability, with an average price rating of 4.00 out of 5.
The table below shows how customers in Greenwich, Connecticut, and the United States rated the affordability of their internet service.
Rated Affordability in Greenwich
| ISP / Tech Type | Greenwich Affordability | Connecticut Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (1) | (6) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (342) | View Plans | ||
| Optimum |  (1) | (9) | (279) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| AT&T | (0) | (0) | (1051) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Customer Reviews for Internet Service Providers in Connecticut
Customer Reviews
A Greenwich, CT Customer
Verizon Fiber
December 08, 2025 I have very quick internet speed and it works in most areas. I don't like that sometimes it cuts out when I'm far away from big cities and in very rural areas, even when other people's phone service is still working. My phone has great service most of the time, but it switches between LTE and 5G often, which sometimes affects the speed of my phone.
Steve M
Optimum Cable
November 13, 2023 Where I live, I feel like we are chained or forced to stick to maybe up to 3 options. Some are not available in certain parts of town, so it is either take what we have or leave it.
ISPReports User
XFINITY
August 02, 2026 spotty cell service for phone.
TK
XFINITY Cable
May 16, 2026 My internet provider is reliable and affordable.
A Rocky Hill, CT Customer
T-Mobile Home Internet Fixed Wireless
May 16, 2026 Rate your provider
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Which ISP Should You Choose in Greenwich?
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 Greenwich is T-Mobile Home Internet.
- The fastest internet provider should be Optimum. Considering speed for the money and reliability in speeds, T-Mobile Home Internet may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Greenwich is T-Mobile Home Internet.
- Viasat, Optimum, and HughesNet has the broadest coverage in Greenwich, available to 99.3% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.