Best Internet Providers in Portsmouth, NH
All 6 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Portsmouth, NH
Portsmouth has 6 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 Portsmouth.
Ranks compare Portsmouth with the 3,338 US towns of 10,000 to 24,999 people, the tiers of our fastest-cities rankings.
The Best Internet in Portsmouth, NH at a Glance
Portsmouth Internet Providers, Ranked by Coverage, Speed and Customer Ratings
XFINITY
Connection
Customer Rating
Cable
Fidium
Connection
Customer Rating
Fiber
DSL
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 Portsmouth ratings may vary and are shown below.
Who is the Best Internet Provider in Portsmouth, NH?
XFINITY from Comcast is the highest-rated internet provider in Portsmouth 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.
Click here to get XFINITY from Comcast
or call 1-877-244-3013
Which Providers are Available at my Home in Portsmouth?
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.
How Portsmouth Compares to Places Its Size
Portsmouth's report card score is in the bottom 47% and its connectivity index is in the top 35%.
| Measure | Portsmouth | Rank among US towns of 10,000 to 24,999 people | Rockingham County | New Hampshire | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 93.1% | top 32% | 90.6% | 85.9% | 71.5% | 115 places at 100.0% |
| Average top speed | 1,996 Mbps | bottom 40% | 1,978 Mbps | 1,999 Mbps | 3,486 Mbps | Middle Valley, TN and Red Bank, TN and 1 more (25,000 Mbps) |
| Providers at a typical address | 6 | bottom 33% | 5.5 | 5.6 | 7.1 | Joshua, TX (13.3) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.1 | bottom 5% | 2.6 | 2.5 | 2.7 | North Bay Shore, NY (4.7) |
| Workers who work from home | 21% | top 17% | 20% | 17% | 15% | Brambleton, VA (51%) |
| Homes with a computer, tablet or phone | 98% | top 14% | 97% | 96% | 96% | 86 places at 100% |
| Homes with internet | 95% | top 23% | 95% | 93% | 91% | 11 places at 100% |
| Homes on fiber, cable or DSL | 87% | top 13% | 87% | 83% | 76% | Klahanie, WA and Short Hills, NJ and 1 more (96%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 91% | top 15% | 89% | 86% | 81% | Stone Ridge, VA and West University Place, TX and 1 more (100%) |
| Median household income | $107,802 | top 31% | $126,655 | $108,120 | $93,246 | West University Place, TX ($249,707) |
| Residents in school (6th grade to college) | 8% | bottom 2% | 12% | 14% | 16% | Stanford, CA (84%) |
Fiber reaches 93.1% of homes in Portsmouth, against 90.6% across Rockingham County and 85.9% across New Hampshire. Households in Portsmouth are smaller than the US average (2.1 people against 2.7); 21% of workers work from home (US 15%); and the median household income is $107,802 (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 Portsmouth
Which Fiber Internet Providers are Available in Portsmouth?
Fidium Fiber in Portsmouth, NH
Availability:
92.9%
Customer Rating:
(67)
Avg. Download Speed
1,761 Mbps
Fidium Fiber offers Fiber service to 92.9% of Portsmouth homes. Across the city, Fidium Fiber has speeds up to 1,761 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 Portsmouth from Fidium in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Portsmouth?
T-Mobile Home Internet Fixed Wireless in Portsmouth, NH
Availability:
98.4%
Customer Rating:
(341)
Avg. Download Speed
74 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 98.4% of Portsmouth homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 74 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 14 Mbps throughout the city.
Verizon Fixed Wireless in Portsmouth, NH
Availability:
89.5%
Customer Rating:
(362)
Avg. Download Speed
220 Mbps
Verizon offers Fixed Wireless service to 89.5% of Portsmouth homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 220 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 Portsmouth, NH
Availability:
82.8%
Customer Rating:
(4)
Avg. Download Speed
28 Mbps
EarthLink offers Fixed Wireless service to 82.8% of Portsmouth homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 28 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 3.7 Mbps throughout the city.
AT&T Fixed Wireless in Portsmouth, NH
Availability:
82.8%
Customer Rating:
(205)
Avg. Download Speed
28 Mbps
AT&T offers Fixed Wireless service to 82.8% of Portsmouth homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 28 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 3.7 Mbps throughout the city.
Which Cable Internet Providers are Available in Portsmouth?
XFINITY Cable in Portsmouth, NH
Availability:
100.0%
Customer Rating:
(2077)
Avg. Download Speed
1,996 Mbps
XFINITY from Comcast offers Cable service to 100.0% of Portsmouth homes. Across the city, XFINITY Cable is the only type of service available from the company, with speeds up to 1,996 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 2,000, with an average of 537 Mbps throughout the city.
Which DSL Internet Providers are Available in Portsmouth?
Fidium DSL in Portsmouth, NH
Availability:
50.6%
Customer Rating:
(18)
Avg. Download Speed
16 Mbps
Fidium Fiber offers DSL service to 50.6% of Portsmouth homes. Across the city, Fidium DSL has speeds up to 16 Mbps, with speeds from 10 Mpbs up to 80 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 2.5 Mbps throughout the city. Fidium DSL is rated higher than other types of internet service available in Portsmouth from Fidium in terms of customer satisfaction.
Internet in Portsmouth by Neighborhood and ZIP Code
Portsmouth has 1 ZIP code with its own page. Each row links to that place’s page.
Neighborhoods in Portsmouth
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in Portsmouth
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 03801 | 22,767 | 93.2% | 1,997 Mbps | 5.9 | B | 74/100 |
How Portsmouth Compares to Nearby Places
The 10 places nearest to Portsmouth that have their own pages are all within 6 miles, 3 of them in Maine. Among them, Rye has the most homes with fiber (99.9%) and Eliot, ME the fewest (86.0%); Portsmouth has 93.1%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Portsmouth (this page) | 22,638 | 93.1% | 1,996 Mbps | 6 | B | 74/100 |
| Kittery, ME | 7,643 | 88.1% | 2,000 Mbps | 6 | B | 74/100 |
| Eliot, ME | 6,598 | 86.0% | 1,911 Mbps | 6.1 | B- | 80/100 |
| Rye | 5,325 | 99.9% | 2,000 Mbps | 5 | B | 83/100 |
| Greenland | 4,559 | 91.5% | 2,000 Mbps | 6.2 | B | 88/100 |
| North Hampton | 3,987 | 93.6% | 2,000 Mbps | 5.2 | B- | 77/100 |
| Kittery Point, ME | 2,400 | 98.6% | 1,995 Mbps | 5.1 | B | 79/100 |
| New Castle | 1,000 | 96.1% | 2,000 Mbps | 5.6 | B | 80/100 |
| Newington | 451 | 99.1% | 2,000 Mbps | 6.2 | B+ | 93/100 |
| Rye Beach | 364 | 100.0% | 2,000 Mbps | 6 | B+ | 82/100 |
| West Rye | 193 | 100.0% | 2,000 Mbps | 6.1 | B+ | 78/100 |
Who is the Fastest Internet Provider in Portsmouth?
Based on both FCC data and unbiased customer ratings, the fastest internet in the city comes from XFINITY from Comcast.
Data Reported to FCC by ISPs: Average Maximum Available in Portsmouth
| XFINITY from Comcast | 2,000 |
|---|---|
| Fidium Fiber | 2,000 |
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 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 Portsmouth. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Portsmouth Internet Providers
Based on 52 reviews from New Hampshire internet customers, XFINITY from Comcast is the best internet service provider for Portsmouth residents. XFINITY from Comcast was rated at an average of 3.34 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in New Hampshire, with 2.00 out of 5 stars and 98.4% coverage in Portsmouth.
At a national level, based on 4689 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.01 out of 5.
Local, State, and National Ratings for all Portsmouth Internet Providers
The table below shows average customer ratings from customers in Portsmouth, New Hampshire, and customers throughout the country.
| ISP / Tech Type | Portsmouth Overall | New Hampshire Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY |  (1) | (35) | (2378) | View Plans | ||
| Verizon | (1) | (3) | (816) | View Plans | ||
| Fidium |  (0) | (13) | (88) | View Plans | ||
| T-Mobile Home Internet | (0) |  (1) | (341) | 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 Portsmouth
Based on data reported by Portsmouth ISPs to the FCC, the fastest speeds in the city are available through XFINITY from Comcast. The company offers speeds up to 2,000 Mbps in Portsmouth. Therefore, the average customer can get up to 1,996 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
Additionally, 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 | Portsmouth Speed | New Hampshire Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY | (1) | (35) | (2378) | View Plans | ||
| Fidium | (0) | (13) | (88) | View Plans | ||
| T-Mobile Home Internet | (0) | (1) | (341) | View Plans | ||
| Verizon | (1) | (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 |
Who is the Cheapest Internet Provider in Portsmouth?
Of the providers in Portsmouth, customers rate XFINITY from Comcast the best for price. Data comes from customers rating their satisfaction with pricing: in Portsmouth 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.
XFINITY from Comcast is rated 5.00 out of 5 for price, which is much higher than the average across all internet providers in the country. T-Mobile Home Internet is rated second for affordability, with an average price rating of 5.00 out of 5.
The table below shows how customers in Portsmouth, New Hampshire, and the United States rated the affordability of their internet service.
Rated Affordability in Portsmouth
| ISP / Tech Type | Portsmouth Affordability | New Hampshire Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY | (1) | (35) | (2378) | View Plans | ||
| Fidium | (0) | (13) | (88) | View Plans | ||
| T-Mobile Home Internet | (0) | (1) | (341) | View Plans | ||
| Verizon | (1) | (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 |
Customer Reviews for Internet Service Providers in New Hampshire
Customer Reviews
A Portsmouth, NH Customer
Verizon Fixed Wireless
January 11, 2026 A Portsmouth, NH Customer
XFINITY Cable
October 02, 2023 I have used Xfinity internet for a majority of my life, and I think they are the best. I’ve always had great speed and little to no issues. I used a provider in Baton Rouge, LA called Eatel and the only thing they had over Xfinity was that apartments were prewired with their service, so I just had to call a number to activate it. I am overall more satisfied with the speed of Xfinity, however, and the fact that I can bundle internet with other services.
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.
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Which ISP Should You Choose in Portsmouth?
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 Portsmouth is XFINITY.
- The fastest internet provider should be XFINITY from Comcast. 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 Portsmouth is XFINITY.
- XFINITY from Comcast, Viasat, and HughesNet has the broadest coverage in Portsmouth, 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.