Best Internet Providers in South Killingly, CT
All 7 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in South Killingly, CT
South Killingly has 7 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 city. Reviews are grouped by provider and the type of service they offer, covering all 3 available internet technologies in South Killingly.
Ranks compare South Killingly with the 31,388 US places under 1,000 people, the tiers of our fastest-cities rankings.
The Best Internet in South Killingly, CT at a Glance
South Killingly Internet Providers, Ranked by Coverage, Speed and Customer Ratings
Frontier
Connection
Customer Rating
Fiber
Breezeline
Connection
Customer Rating
Cable
XFINITY
Connection
Customer Rating
Fiber
Cable
EarthLink
Connection
Customer Rating
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 South Killingly ratings may vary and are shown below.
Who is the Best Internet Provider in South Killingly, CT?
T-Mobile Home Internet is the best internet provider in South Killingly 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 South Killingly, making it a solid recommendation among providers with reviews. T-Mobile Home Internet is an option for 100.00% 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 South Killingly?
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 South Killingly
How South Killingly Compares to Places Its Size
South Killingly's report card score is in the top 3% and its connectivity index is in the top 9%.
| Measure | South Killingly | Rank among US places under 1,000 people | Windham County | Connecticut | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 100.0% | top 1% | 94.7% | 93.9% | 71.5% | Tied with 6,945 other places at 100.0% |
| Average top speed | 7,000 Mbps | top 3% | 6,779 Mbps | 6,892 Mbps | 3,486 Mbps | Fairmount, TN and Falling Water, TN and 5 more (25,000 Mbps) |
| Providers at a typical address | 6.2 | top 18% | 5.7 | 6.8 | 7.1 | Los Prados, PR (15.1) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.7 | top 21% | 2.5 | 2.5 | 2.7 | Paguate, NM (13.4) |
| Workers who work from home | 11% | top 35% | 11% | 16% | 15% | Boys Town, NE (100%) |
| Homes with a computer, tablet or phone | 96% | top 23% | 95% | 96% | 96% | 1,494 places at 100% |
| Homes with internet | 94% | top 12% | 91% | 93% | 91% | 370 places at 100% |
| Homes on fiber, cable or DSL | 75% | top 16% | 80% | 80% | 76% | 23 places at 100% |
| More about the households here | ||||||
| Homes with a desktop or laptop | 80% | top 24% | 78% | 83% | 81% | 72 places at 100% |
| Median household income | $105,461 | top 9% | $88,876 | $111,414 | $93,246 | 22 places at $250,001 |
| Residents in school (6th grade to college) | 14% | top 28% | 14% | 16% | 16% | University at Buffalo, NY (100%) |
Fiber reaches 100.0% of homes in South Killingly, against 94.7% across Windham County and 93.9% across Connecticut. Households in South Killingly are the same size as the US average (2.7 people against 2.7); 11% of workers work from home (US 15%); and the median household income is $105,461 (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 South Killingly
Which Fiber Internet Providers are Available in South Killingly?
Frontier Fiber in South Killingly, CT
Availability:
100.0%
Customer Rating:
(119)
Avg. Download Speed
7,000 Mbps
Frontier Communications offers Fiber service to 100.0% of South Killingly homes. Across the city, Frontier Fiber is the only type of service available from the company, with speeds up to 7,000 Mbps
XFINITY Fiber in South Killingly, CT
Availability:
4.8%
Customer Rating:
(300)
Avg. Download Speed
2,000 Mbps
XFINITY from Comcast offers Fiber service to 4.8% of South Killingly homes. Across the city, XFINITY Fiber has speeds up to 2,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in South Killingly?
T-Mobile Home Internet Fixed Wireless in South Killingly, CT
Availability:
100.0%
Customer Rating:
(342)
Avg. Download Speed
88 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 100.0% of South Killingly homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 88 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 17 Mbps throughout the city.
EarthLink Fixed Wireless in South Killingly, CT
Availability:
74.0%
Customer Rating:
(4)
Avg. Download Speed
47 Mbps
EarthLink offers Fixed Wireless service to 74.0% of South Killingly homes. Across the city, EarthLink 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 7.9 Mbps throughout the city.
AT&T Fixed Wireless in South Killingly, CT
Availability:
74.0%
Customer Rating:
(205)
Avg. Download Speed
47 Mbps
AT&T offers Fixed Wireless service to 74.0% of South Killingly 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 7.9 Mbps throughout the city.
Verizon Fixed Wireless in South Killingly, CT
Availability:
73.8%
Customer Rating:
(362)
Avg. Download Speed
134 Mbps
Verizon offers Fixed Wireless service to 73.8% of South Killingly homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 134 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 12 Mbps throughout the city.
Which Cable Internet Providers are Available in South Killingly?
Breezeline Cable in South Killingly, CT
Availability:
100.0%
Customer Rating:
(62)
Avg. Download Speed
1,000 Mbps
Breezeline offers Cable service to 100.0% of South Killingly homes. Across the city, Breezeline Cable is the only type of service available from the company, with speeds up to 1,000 Mbps
XFINITY Cable in South Killingly, CT
Availability:
95.2%
Customer Rating:
(2077)
Avg. Download Speed
2,000 Mbps
XFINITY from Comcast offers Cable service to 95.2% of South Killingly homes. Across the city, XFINITY Cable has speeds up to 2,000 Mbps
Which DSL Internet Providers are Available in South Killingly?
According to the most recently submitted data by internet service providers to the FCC, there are currently no DSL providers available in South Killingly, CT.
Internet in South Killingly by Neighborhood and ZIP Code
Each row links to that place’s page.
Neighborhoods in South Killingly
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in South Killingly
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
How South Killingly Compares to Nearby Places
The 10 places nearest to South Killingly that have their own pages are all within 6 miles, 3 of them in Rhode Island. Among them, Sterling has the most homes with fiber (100.0%) and Wauregan the fewest (96.6%); South Killingly has 100.0%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| South Killingly (this page) | 496 | 100.0% | 7,000 Mbps | 6.2 | A- | 69/100 |
| Danielson | 9,985 | 99.2% | 6,967 Mbps | 6.7 | A- | 57/100 |
| Dayville | 6,265 | 98.5% | 6,925 Mbps | 6.8 | A- | 76/100 |
| Foster, RI | 4,674 | 99.5% | 1,549 Mbps | 4 | B- | 83/100 |
| Sterling | 2,300 | 100.0% | 7,000 Mbps | 5.6 | A- | 85/100 |
| Wauregan | 1,638 | 96.6% | 6,832 Mbps | 5.7 | B+ | 68/100 |
| East Brooklyn | 1,171 | 98.4% | 6,908 Mbps | 6.5 | A- | 62/100 |
| East Killingly | 722 | 95.0% | 6,762 Mbps | 5.8 | B+ | 90/100 |
| Vaughn Hollow, RI | 389 | 100.0% | 1,226 Mbps | 4.7 | B- | 75/100 |
| North Foster, RI | 282 | 100.0% | 1,187 Mbps | 3.6 | B- | 79/100 |
| Rogers | 129 | 100.0% | 7,000 Mbps | 3 | B | 82/100 |
Who is the Fastest Internet Provider in South Killingly?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by Breezeline. On the other hand, based on data provided by the internet providers to the FCC, Frontier Communications 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 South Killingly
| Frontier Communications | 7,000 |
|---|---|
| XFINITY from Comcast | 2,000 |
| Breezeline | 1,000 |
| Verizon | 300 |
| T-Mobile Home Internet | 100 |
| Viasat | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in South Killingly. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for South Killingly Internet Providers
Based on 71 reviews from Connecticut internet customers, T-Mobile Home Internet is the best internet service provider for South Killingly 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 3.67 out of 5 stars and 73.8% coverage in South Killingly.
At a national level, based on 4847 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 South Killingly Internet Providers
The table below shows average customer ratings from customers in South Killingly, Connecticut, and customers throughout the country.
| ISP / Tech Type | South Killingly Overall | Connecticut Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet |  (0) | (4) | (342) | View Plans | ||
| Breezeline | (0) | (3) | (67) | View Plans | ||
| Verizon | (0) | (6) | (816) | View Plans | ||
| Frontier | (0) | (14) | (177) | View Plans | ||
| XFINITY | (0) | (44) | (2379) | 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 South Killingly
Based on data reported by South Killingly ISPs to the FCC, the fastest speeds in the city are available through Frontier Communications. The company offers speeds up to 7,000 Mbps in South Killingly. Therefore, the average customer can get up to 7,000 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 Breezeline. This indicates Breezeline reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | South Killingly Speed | Connecticut Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Breezeline | (0) |  (3) | (67) | View Plans | ||
| Verizon | (0) | (6) | (816) | View Plans | ||
| XFINITY | (0) | (44) | (2379) | View Plans | ||
| T-Mobile Home Internet | (0) | (4) | (342) | View Plans | ||
| Frontier | (0) | (14) | (177) | 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 South Killingly?
Of the providers in South Killingly, customers rate T-Mobile Home Internet the best for price. Data comes from customers rating their satisfaction with pricing: in South Killingly 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 3.67 out of 5.
The table below shows how customers in South Killingly, Connecticut, and the United States rated the affordability of their internet service.
Rated Affordability in South Killingly
| ISP / Tech Type | South Killingly Affordability | Connecticut Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (4) | (342) | View Plans | ||
| Verizon | (0) | (6) | (816) | View Plans | ||
| Frontier | (0) | (14) | (177) | View Plans | ||
| Breezeline | (0) | (3) | (67) | View Plans | ||
| XFINITY | (0) | (44) | (2379) | 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
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 A Hartford, CT Customer
XFINITY Cable
April 28, 2026 Overall Xfinity provided very fast internet. The key is having a router that supports the higher speeds. The area we have struggled with the most is the price. We have gone back and forth with customer service to get lower rates given the more competitive prices being offered by new market entrants. Unfortunately Xfinity won't budge and may soon lose our service as the competitors provide faster speeds at lower cost.
lyssa l
XFINITY Cable
April 26, 2026 I've been using Xfinity for about two years now, and overall, it's been a solid experience. I work remotely and stream a lot of content, and the 200 Mbps plan has been more than enough for my needs. Speeds are consistent, and I rarely experience outages. I especially appreciate the self-service tools in the Xfinity app—it makes managing my plan and checking for issues super easy.
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Which ISP Should You Choose in South Killingly?
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 South Killingly is T-Mobile Home Internet.
- The fastest internet provider should be Frontier Communications. Considering speed for the money and reliability in speeds, Breezeline may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in South Killingly is T-Mobile Home Internet.
- XFINITY from Comcast, Viasat, T-Mobile Home Internet, HughesNet, Frontier Communications, and Breezeline has the broadest coverage in South Killingly, available to 100.0% 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.