Best Internet Providers in Grantham, NH
All 8 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Grantham, NH
Grantham has 8 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 Grantham.
Ranks compare Grantham with the 15,682 US towns of 1,000 to 9,999 people, the tiers of our fastest-cities rankings.
The Best Internet in Grantham, NH at a Glance
Grantham Internet Providers, Ranked by Coverage, Speed and Customer Ratings
XFINITY
Connection
Customer Rating
Cable
Fidium
Connection
Customer Rating
Fiber
DSL
HUB66
Connection
Customer Rating
Fiber
T-Mobile Home Internet
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 Grantham ratings may vary and are shown below.
Who is the Best Internet Provider in Grantham, NH?
Verizon is the highest-rated internet provider in Grantham based on 52 New Hampshire customer reviews, and T-Mobile Home Internet has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.
or call 1-833-213-7018
Which Providers are Available at my Home in Grantham?
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 Grantham
- HUB66 - fiber coverage map
- XFINITY - cable coverage map
- Fidium - fiber coverage map
- Verizon - fixed wireless coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- Fidium - dsl coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- VTel Wireless - fixed wireless coverage map
How Grantham Compares to Places Its Size
Grantham's report card score is in the top 31% and its connectivity index is in the top 35%.
| Measure | Grantham | Rank among US towns of 1,000 to 9,999 people | Sullivan County | New Hampshire | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 95.7% | top 27% | 59.7% | 85.9% | 71.5% | 1,056 places at 100.0% |
| Average top speed | 4,489 Mbps | top 14% | 2,009 Mbps | 1,999 Mbps | 3,486 Mbps | Collegedale, TN and Lakesite, TN and 2 more (25,000 Mbps) |
| Providers at a typical address | 4.2 | bottom 24% | 5.5 | 5.6 | 7.1 | McLendon-Chisholm, TX (14.2) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.4 | bottom 42% | 2.6 | 2.5 | 2.7 | St. George, GA (6.2) |
| Workers who work from home | 11% | top 39% | 11% | 17% | 15% | Indian Springs, NV (76%) |
| Homes with a computer, tablet or phone | 99% | top 4% | 93% | 96% | 96% | 515 places at 100% |
| Homes with internet | 94% | top 17% | 88% | 93% | 91% | 115 places at 100% |
| Homes on fiber, cable or DSL | 65% | bottom 47% | 71% | 83% | 76% | Bunkerville, NV and Fort Myer, VA and 3 more (100%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 97% | top 1% | 80% | 86% | 81% | 12 places at 100% |
| Median household income | $113,053 | top 13% | $85,308 | $108,120 | $93,246 | 16 places at $250,001 |
| Residents in school (6th grade to college) | 12% | bottom 47% | 10% | 14% | 16% | University Park, PA (95%) |
Fiber reaches 95.7% of homes in Grantham, against 59.7% across Sullivan County and 85.9% across New Hampshire. Households in Grantham are smaller than the US average (2.4 people against 2.7); 11% of workers work from home (US 15%); and the median household income is $113,053 (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 Grantham
Which Fiber Internet Providers are Available in Grantham?
Fidium Fiber in Grantham, NH
Availability:
80.0%
Customer Rating:
(67)
Avg. Download Speed
1,993 Mbps
Fidium Fiber offers Fiber service to 80.0% of Grantham homes. Across the city, Fidium Fiber has speeds up to 1,993 Mbps, with speeds from 1,000 Mpbs up to 2,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for Fidium Fiber. Fidium Fiber is rated about the same as other types of internet service available in Grantham from Fidium in terms of customer satisfaction.
HUB66 Fiber in Grantham, NH
Availability:
42.1%
Customer Rating:
(0)
Avg. Download Speed
8,000 Mbps
HUB66 offers Fiber service to 42.1% of Grantham homes. Across the city, HUB66 Fiber is the only type of service available from the company, with speeds up to 8,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Grantham?
T-Mobile Home Internet Fixed Wireless in Grantham, NH
Availability:
97.7%
Customer Rating:
(342)
Avg. Download Speed
71 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 97.7% of Grantham homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 71 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 13 Mbps throughout the city.
Verizon Fixed Wireless in Grantham, NH
Availability:
32.9%
Customer Rating:
(362)
Avg. Download Speed
216 Mbps
Verizon offers Fixed Wireless service to 32.9% of Grantham homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 216 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.
EarthLink Fixed Wireless in Grantham, NH
Availability:
2.5%
Customer Rating:
(4)
Avg. Download Speed
25 Mbps
EarthLink offers Fixed Wireless service to 2.5% of Grantham homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 25 Mbps
AT&T Fixed Wireless in Grantham, NH
Availability:
2.5%
Customer Rating:
(205)
Avg. Download Speed
25 Mbps
AT&T offers Fixed Wireless service to 2.5% of Grantham homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 25 Mbps
VTel Wireless Fixed Wireless in Grantham, NH
Availability:
1.9%
Customer Rating:
(0)
Avg. Download Speed
25 Mbps
VTel Wireless offers Fixed Wireless service to 1.9% of Grantham homes. Across the city, VTel Wireless Fixed Wireless is the only type of service available from the company, with speeds up to 25 Mbps
Which Cable Internet Providers are Available in Grantham?
XFINITY Cable in Grantham, NH
Availability:
97.6%
Customer Rating:
(2077)
Avg. Download Speed
1,675 Mbps
XFINITY from Comcast offers Cable service to 97.6% of Grantham homes. Across the city, XFINITY Cable is the only type of service available from the company, with speeds up to 1,675 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 163 Mbps throughout the city.
Which DSL Internet Providers are Available in Grantham?
Fidium DSL in Grantham, NH
Availability:
67.7%
Customer Rating:
(18)
Avg. Download Speed
10 Mbps
Fidium Fiber offers DSL service to 67.7% of Grantham homes. Across the city, Fidium DSL has speeds up to 10 Mbps
Internet in Grantham by Neighborhood and ZIP Code
Grantham has 1 ZIP code with its own page. Each row links to that place’s page.
Neighborhoods in Grantham
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in Grantham
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 03753 | 3,502 | 93.5% | 4,341 Mbps | 4.2 | B- | 57/100 |
How Grantham Compares to Nearby Places
The 10 places nearest to Grantham that have their own pages are all within 7 miles. Among them, Georges Mills has the most homes with fiber (100.0%) and Enfield the fewest (83.7%); Grantham has 95.7%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Grantham (this page) | 3,028 | 95.7% | 4,489 Mbps | 4.2 | B | 57/100 |
| Enfield | 3,536 | 83.7% | 6,282 Mbps | 6.3 | B | 62/100 |
| Georges Mills | 1,014 | 100.0% | 1,853 Mbps | 4.5 | B | 69/100 |
| Meriden | 869 | 19.4% | 1,345 Mbps | 5 | C- | 80/100 |
| Mascoma | 673 | 99.5% | 4,916 Mbps | 7.1 | A- | 49/100 |
| Springfield | 669 | 96.9% | 1,785 Mbps | 2.8 | C+ | 84/100 |
| Enfield Center | 412 | 59.7% | 5,018 Mbps | 4.1 | C+ | 42/100 |
| Cornish Flat | 375 | 7.2% | 1,148 Mbps | 5.1 | C- | 53/100 |
| Croydon Flat | 261 | 100.0% | 2,000 Mbps | 4.5 | B | 65/100 |
| West Springfield | 187 | 92.5% | 5,767 Mbps | 5.2 | B | 84/100 |
| Robinson Corner | 119 | 97.5% | 2,000 Mbps | 3.6 | B- | 77/100 |
Who is the Fastest Internet Provider in Grantham?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by XFINITY from Comcast. On the other hand, based on data provided by the internet providers to the FCC, HUB66 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 Grantham
| HUB66 | 8,000 |
|---|---|
| Fidium Fiber | 2,000 |
| XFINITY from Comcast | 2,000 |
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| HughesNet | 25 |
| AT&T | 25 |
| EarthLink | 25 |
| VTel Wireless | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Grantham. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Grantham Internet Providers
Based on 52 reviews from New Hampshire internet customers, Verizon is the best internet service provider for Grantham residents. Verizon was rated at an average of 3.67 out of 5 in our report for overall customer satisfaction. XFINITY from Comcast wins for second-place in New Hampshire, with 3.34 out of 5 stars and 97.6% coverage in Grantham.
At a national level, based on 4691 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 Grantham Internet Providers
The table below shows average customer ratings from customers in Grantham, New Hampshire, and customers throughout the country.
| ISP / Tech Type | Grantham Overall | New Hampshire Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) | (3) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) |  (1) | (342) | View Plans | ||
| Fidium | (0) | (13) | (88) | View Plans | ||
| XFINITY | (0) | (35) | (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 | ||
| VTel Wireless | (0) | (0) | (0) | View Plans | ||
| HUB66 | (0) | (0) | (0) | View Plans |
Customer Ratings for Internet Provider Speeds in Grantham
Based on data reported by Grantham ISPs to the FCC, the fastest speeds in the city are available through HUB66. The company offers speeds up to 8,000 Mbps in Grantham. Therefore, the average customer can get up to 8,000 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 XFINITY from Comcast. This indicates XFINITY reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Grantham Speed | New Hampshire Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY | (0) | (35) | (2379) | View Plans | ||
| Fidium | (0) | (13) | (88) | View Plans | ||
| T-Mobile Home Internet | (0) | (1) | (342) | View Plans | ||
| Verizon | (0) | (3) | (816) | 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 | ||
| VTel Wireless | (0) | (0) | (0) | View Plans | ||
| HUB66 | (0) | (0) | (0) | View Plans |
Who is the Cheapest Internet Provider in Grantham?
Of the providers in Grantham, customers rate T-Mobile Home Internet the best for price. Data comes from customers rating their satisfaction with pricing: in Grantham where enough of them have reviewed a provider, otherwise across New Hampshire 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 5.00 out of 5 for price, which is much higher than the average across all internet providers in the country. Verizon is rated second for affordability, with an average price rating of 3.33 out of 5.
The table below shows how customers in Grantham, New Hampshire, and the United States rated the affordability of their internet service.
Rated Affordability in Grantham
| ISP / Tech Type | Grantham Affordability | New Hampshire Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) |  (1) | (342) | View Plans | ||
| Verizon | (0) | (3) | (816) | View Plans | ||
| Fidium | (0) | (13) | (88) | View Plans | ||
| XFINITY | (0) | (35) | (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 | ||
| VTel Wireless | (0) | (0) | (0) | View Plans | ||
| HUB66 | (0) | (0) | (0) | View Plans |
Customer Reviews for Internet Service Providers in New Hampshire
Customer Reviews
VICTORIA
Fidium
September 05, 2026 speed sucks
Bruce
Fidium Fiber
August 10, 2026 While speeds are ok, they lure you in with the promise of low rates, and jack up the price over time. Getting to actual customer service is difficult. I have lost access to my email multiple times, the last time was for over a week. This is unacceptable. It was nothing I did, but something they did in their backend. No notification, just loss of email access. Have a ticket, but I'll be lucky if they call back within 24 hours. Last time, I had to hound them multiple times, including getting in contact with the state PUC to find someone higher up to speak with. Losing access to your bills and attorney's is not cool. Cannot recommend them and their lackadaisical attitude towards service.
ISPReports User
Fidium Fiber
July 11, 2026 it's NOT 1 gig, actually more like .5G. About the same as Xfinity's 500MbPs at the same price without the streaming privileges.
A Manchester, NH Customer
Fidium Fiber
February 18, 2026 They did do a wonderful job making sure that some damage during installation was covered when I had to get it fixed (accidentally drilled a hole through my power cable coming from the street). The technician was very professional and apologetic, and also personable to talk to. He didn't get defensive or try to wave it away; he knew it was severe damage and immediately got in touch with his boss. The process was relatively easy, I had the electrician who came later call them for the invoice. That alone is excellent customer service, and I can forgive a lot of other minor nonsense if they can be that honest with me. The only snag I've had since then is their app is a bit of a pain to use sometimes, having difficulty connecting to my network with it.
Matt A
XFINITY Cable
February 12, 2026 The price is ridiculous for the speed provided based on what people in different countries are able to get. Download speed is adequate at best. Upload speeds are terrible. It really should be better. The best thing I can say is I don't have outages. So it pretty much is always available, so that's good.
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Which ISP Should You Choose in Grantham?
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 Grantham is Verizon.
- The fastest internet provider should be HUB66. Considering speed for the money and reliability in speeds, XFINITY from Comcast may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Grantham is T-Mobile Home Internet.
- Viasat, HughesNet, and Fidium Fiber has the broadest coverage in Grantham, 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.