Speedwell, TN 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 Speedwell, TN zip codes, this guide compares the top-performing networks and the cheapest plans that use them.



Cell phone coverage map for Speedwell, 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, © OpenMapTiles. Basemap by OpenFreeMap. Rendered with MapLibre. FCC BDC mobile coverage processed by CompareWirelessCarriers.

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Cell phone coverage rankings by network in Speedwell, TN

#1

Verizon

Coverage Score 78.5
In Speedwell, TN
Overall
86.3%
4G LTE
85.7% avg. -92 dBm 4G LTE signal where 4G LTE coverage exists: avg. -92 dBm
5G
74.9% avg. -97 dBm 5G signal where 5G coverage exists: avg. -97 dBm
Fast 5G
58.0% avg. -94 dBm Fast 5G signal where Fast 5G coverage exists: avg. -94 dBm
Claiborne County, TN covered 76.7%
#2

T-Mobile

Coverage Score 78.3
In Speedwell, TN
Overall
76.3%
4G LTE
76.3% avg. -93 dBm 4G LTE signal where 4G LTE coverage exists: avg. -93 dBm
5G
72.8% avg. -88 dBm 5G signal where 5G coverage exists: avg. -88 dBm
Fast 5G
58.2% avg. -85 dBm Fast 5G signal where Fast 5G coverage exists: avg. -85 dBm
Claiborne County, TN covered 55.9%
#3

AT&T

Coverage Score 41.7
In Speedwell, TN
Overall
79.4%
4G LTE
79.4% avg. -106 dBm 4G LTE signal where 4G LTE coverage exists: avg. -106 dBm
5G
12.2% avg. -116 dBm 5G signal where 5G coverage exists: avg. -116 dBm
Fast 5G
11.4% avg. -116 dBm Fast 5G signal where Fast 5G coverage exists: avg. -116 dBm
Claiborne County, TN covered 63.3%

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

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Coverage by ZIP code in Speedwell, TN

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

ZIP CodeAT&TT-MobileVerizon
37870 79.4% 79.4% 12.2% 11.4% 76.3% 76.3% 72.8% 58.2% 86.3% 85.7% 74.9% 58.0%

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 2026. “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 Speedwell, 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.