Coos County, NH State Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Coos County, NH

Coverage rankings for Coos County, NH

Verizon currently ranks first for coverage in this area, with a coverage score of 41.2. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1Verizon41.264.2%64.2%2.3%1.0% -95 dBm
2T-Mobile35.031.5%31.4%25.6%14.3% -96 dBm
3AT&T29.146.6%46.6%0.5%0.3% -108 dBm

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

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 Coos County, NH

#1

Verizon

Coverage Score 41.2
In Coos County, NH
Overall
64.2%
4G LTE
64.2%
5G
2.3%
Fast 5G
1.0%
Average Signal -95 dBm
#2

T-Mobile

Coverage Score 35.0
In Coos County, NH
Overall
31.5%
4G LTE
31.4%
5G
25.6%
Fast 5G
14.3%
Average Signal -96 dBm
#3

AT&T

Coverage Score 29.1
In Coos County, NH
Overall
46.6%
4G LTE
46.6%
5G
0.5%
Fast 5G
0.3%
Average Signal -108 dBm
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Coverage by city in Coos County, NH

Cities and towns are shown for county-level comparison. Coverage percentages use land-area only coverage.

CityVerizonAT&TT-Mobile
Berlin, NH 87.9% 87.9% 0.1% 0.0% -92 dBm 86.3% 86.3% 0.0% 0.0% -105 dBm 75.8% 75.8% 63.6% 46.2% -93 dBm
Bretton Woods, NH 77.7% 77.7% 7.6% 5.5% -96 dBm 92.9% 92.9% 0.0% 0.0% -104 dBm 16.0% 16.0% 11.1% 0.5% -103 dBm
Colebrook, NH 100.0% 100.0% 82.8% 67.2% -87 dBm 87.9% 87.9% 0.0% 0.0% -116 dBm 98.3% 98.3% 98.3% 79.3% -84 dBm
Errol, NH 46.2% 46.2% 0.0% 0.0% -97 dBm 9.5% 9.5% 0.0% 0.0% -115 dBm 3.6% 3.6% 1.7% 0.7% -103 dBm
Gorham, NH 97.6% 97.6% 23.8% 9.5% -90 dBm 100.0% 100.0% 0.0% 0.0% -102 dBm 100.0% 100.0% 100.0% 71.4% -91 dBm
Groveton, NH 100.0% 100.0% 0.0% 0.0% -83 dBm 97.9% 97.9% 0.0% 0.0% -111 dBm 97.9% 97.9% 93.8% 81.3% -89 dBm
Jefferson, NH 94.1% 93.9% 22.7% 4.7% -95 dBm 87.3% 87.3% 0.0% 0.0% -101 dBm 66.6% 66.6% 55.9% 30.0% -96 dBm
Lancaster, NH 100.0% 100.0% 0.0% 0.0% -88 dBm 100.0% 100.0% 0.0% 0.0% -104 dBm 95.6% 95.6% 94.1% 67.6% -91 dBm
Milan, NH 88.3% 88.3% 0.0% 0.0% -94 dBm 48.7% 48.7% 0.0% 0.0% -113 dBm 34.6% 34.6% 20.3% 6.0% -101 dBm
North Stratford, NH 67.0% 67.0% 0.7% 0.6% -95 dBm 55.0% 55.0% 0.0% 0.0% -112 dBm 34.8% 34.4% 28.1% 16.8% -96 dBm
Pittsburg, NH 40.4% 40.4% 0.0% 0.0% -96 dBm 5.7% 5.7% 0.0% 0.0% -116 dBm 11.1% 11.1% 7.9% 4.0% -98 dBm
Randolph, NH 63.9% 63.9% 3.5% 1.8% -97 dBm 61.7% 61.7% 0.0% 0.0% -107 dBm 37.0% 36.9% 31.2% 11.9% -99 dBm
Twin Mountain, NH 89.2% 89.2% 19.5% 11.5% -92 dBm 89.0% 89.0% 4.9% 2.0% -108 dBm 71.3% 71.3% 62.8% 40.7% -94 dBm
West Stewartstown, NH 100.0% 100.0% 0.0% 0.0% -72 dBm 93.8% 93.8% 0.0% 0.0% -115 dBm N/A N/A N/A N/A N/A
Whitefield, NH 100.0% 100.0% 0.0% 0.0% -80 dBm 100.0% 100.0% 2.6% 2.6% -95 dBm 100.0% 100.0% 94.9% 87.2% -81 dBm