Franklin County, TN Cell Phone Coverage Map & Network Rankings (2026)

Find the best cell phone network and plan to use in Franklin County, TN

Coverage rankings for Franklin County, TN

AT&T currently ranks first for coverage in this area, with a coverage score of 58.4. Compare Wireless Carriers uses FCC broadband map data to estimate and calculate coverage scores. More on that further below.

RankCarrierScoreOverall4G LTE5GFast 5GAverage Signal
1AT&T58.470.3%70.1%46.2%37.5% -115 dBm
2Verizon50.876.5%76.5%14.0%8.6% -99 dBm
3T-Mobile44.643.7%43.7%34.1%21.3% -95 dBm

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

Cell phone coverage map for Franklin County, TN

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 Franklin County, TN

#1

AT&T

Coverage Score 58.4
In Franklin County, TN
Overall
70.3%
4G LTE
70.1%
5G
46.2%
Fast 5G
37.5%
Average Signal -115 dBm
#2

Verizon

Coverage Score 50.8
In Franklin County, TN
Overall
76.5%
4G LTE
76.5%
5G
14.0%
Fast 5G
8.6%
Average Signal -99 dBm
#3

T-Mobile

Coverage Score 44.6
In Franklin County, TN
Overall
43.7%
4G LTE
43.7%
5G
34.1%
Fast 5G
21.3%
Average Signal -95 dBm
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Coverage by city in Franklin County, TN

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

CityVerizonAT&TT-Mobile
Belvidere, TN 100.0% 100.0% 0.0% 0.0% -75 dBm 100.0% 100.0% 100.0% 90.9% -110 dBm 90.9% 90.9% 18.2% 9.1% -106 dBm
Cowan, TN 100.0% 100.0% 98.1% 96.2% -78 dBm 100.0% 100.0% 92.5% 86.8% -118 dBm 100.0% 100.0% 100.0% 100.0% -73 dBm
Decherd, TN 100.0% 100.0% 66.7% 53.7% -89 dBm 100.0% 100.0% 99.2% 86.2% -106 dBm 100.0% 100.0% 98.4% 78.9% -86 dBm
Estill Springs, TN 100.0% 100.0% 16.0% 6.4% -91 dBm 87.2% 87.2% 44.8% 37.6% -119 dBm 99.2% 99.2% 83.2% 57.6% -90 dBm
Huntland, TN 100.0% 100.0% 47.5% 35.0% -94 dBm 100.0% 100.0% 97.5% 65.0% -117 dBm 100.0% 100.0% 97.5% 67.5% -91 dBm
Sewanee, TN 100.0% 100.0% 39.0% 25.0% -98 dBm 93.0% 92.0% 83.0% 70.0% -112 dBm 81.0% 81.0% 73.0% 60.0% -89 dBm
Sherwood, TN 17.4% 17.4% 0.0% 0.0% -110 dBm 100.0% 100.0% 95.7% 95.7% -108 dBm N/A N/A N/A N/A N/A
Winchester, TN 100.0% 100.0% 82.2% 64.0% -88 dBm 100.0% 100.0% 100.0% 96.2% -105 dBm 98.3% 98.3% 96.9% 87.3% -85 dBm
Lynchburg, Moore County, TN 81.9% 81.9% 11.6% 5.8% -99 dBm 83.5% 83.5% 25.0% 22.0% -114 dBm 42.9% 42.9% 31.9% 17.2% -97 dBm
Monteagle, TN 100.0% 100.0% 23.5% 13.2% -93 dBm 100.0% 100.0% 9.4% 6.4% -100 dBm 82.9% 82.9% 68.8% 42.7% -93 dBm
Pelham, TN 93.7% 93.7% 0.5% 0.0% -96 dBm 96.5% 96.5% 2.3% 0.2% -110 dBm 57.5% 57.5% 46.7% 29.3% -95 dBm
Tullahoma, TN 99.8% 99.8% 50.3% 36.4% -91 dBm 97.0% 97.0% 35.5% 33.7% -113 dBm 88.7% 88.7% 82.3% 61.1% -90 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 Franklin County, TN 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.