South Sutton, NH Cell Phone Coverage Map & Network Rankings (2026)

Don’t overpay for a network that struggles where you actually use your phone.

Using FCC mobile coverage data across South Sutton, NH zip codes, this guide compares the top-performing networks and the cheapest plans that use them.

Coverage rankings for South Sutton, NH

AT&T currently ranks first for coverage in this area, with a coverage score of 48.0. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.


RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T48.089.8%89.8%0.0%0.0% -109 dBm
2Verizon47.576.9%76.9%9.3%2.8% -99 dBm
3T-Mobile16.314.8%14.8%3.7%2.8% -108 dBm

Scores include coverage area, network type, and average signal strength.


Cell phone coverage map for South Sutton, NH

Zoom in for local detail. Tap or click a colored area to see coverage and signal details. On mobile, use two fingers to move the map.

Coverage Key
Less covered More covered
Darker areas mean the carrier covers more of that location.

Map data © OpenStreetMap contributors, © CARTO. Rendered with MapLibre. FCC BDC mobile coverage processed by Compare Wireless Carriers.

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Cell phone coverage by network in South Sutton, NH

#1

AT&T

Coverage Score 48.0
In South Sutton, NH
Overall
89.8%
4G LTE
89.8%
5G
0.0%
Fast 5G
0.0%
Average Signal -109 dBm
Merrimack County, NH covered 93.3%
#2

Verizon

Coverage Score 47.5
In South Sutton, NH
Overall
76.9%
4G LTE
76.9%
5G
9.3%
Fast 5G
2.8%
Average Signal -99 dBm
Merrimack County, NH covered 86.1%
#3

T-Mobile

Coverage Score 16.3
In South Sutton, NH
Overall
14.8%
4G LTE
14.8%
5G
3.7%
Fast 5G
2.8%
Average Signal -108 dBm
Merrimack County, NH covered 68.4%

County coverage is shown for surrounding-area context and uses land-area only coverage.

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Coverage by ZIP code in South Sutton, NH

ZIP code areas can extend beyond city limits, so this table is best used for local comparison around the city.

ZIP CodeAT&TT-MobileVerizon
03273 89.8% 89.8% 0.0% 0.0% -109 dBm 14.8% 14.8% 3.7% 2.8% -108 dBm 76.9% 76.9% 9.3% 2.8% -99 dBm

About The Coverage Data

Coverage and signal estimates are derived by Compare Wireless Carriers from carrier-reported data in the FCC’s National Broadband Coverage Map, last updated in June 2025. “Percent covered” shows how much of the city or ZIP code area has a carrier signal, whether weak or strong. Signal bars show the estimated average signal strength in areas of South Sutton, NH where that carrier has coverage.

If a carrier says you should have service but you do not, run a challenge test with the FCC Mobile Speed Test App. The FCC uses those results to check carrier-submitted coverage data and requires a carrier response when enough tests show a pattern of inaccurate coverage reporting.