SOUTH CAROLINA · STATEWIDE · FCC DATA

Best cell phone coverage in South Carolina South Carolina, statewide · AT&T · T-Mobile · Verizon

Verizon reports the widest coverage in South Carolina: 96% of the area outdoors, 23.5 points ahead of T-Mobile. 6.1% of the area is water, and the lead is bigger than that, so it holds on land too. AT&T is close enough behind that the top two are effectively level.

Figures are the share of South Carolina's area where each carrier reports 4G LTE or 5G service to the FCC, as of December 31, 2025. The area includes water (6.1% of it), which some carriers file coverage over and others don't. A state or city figure can hide dead spots, so check your own ZIP code below.

RESULT · SOUTH CAROLINA

Coverage in South Carolina

FCC filings as of December 31, 2025

★ WIDEST REPORTED COVERAGE
Verizon
96%

Verizon reports 4G LTE or 5G across 96% of South Carolina outdoors and 43.1% in a moving car. AT&T is close enough behind that the top two are effectively level.

Outdoor
96%
In car
43.1%

AT&T vs T-Mobile vs Verizon in South Carolina

#1
Verizon
Reported coverage, % of area
Outdoor
96%
In car
43.1%
#2
AT&T
Reported coverage, % of area
Outdoor
87.7%
In car
55.5%
#3
T-Mobile
Reported coverage, % of area
Outdoor
72.5%
In car
30.8%

Outdoor is the share of the area where the carrier reports 4G LTE or 5G to a phone standing still outdoors; in car is the share it reports to a phone in a moving vehicle, which is always lower. Indoor signal is not part of the FCC filing and can be weaker than either.

4G and 5G across all carriers in South Carolina

4G LTE
98%
5G 7/1
74.9%
5G 35/3
57.5%

Share of South Carolina's area where at least one carrier reports each technology outdoors. "5G 7/1" means 5G of at least 7 Mbps down and 1 Mbps up, "5G 35/3" at least 35/3 Mbps, the two speed tiers the FCC publishes. The FCC summary does not split 5G by carrier.

Checking Verizon for your address

Verizon's filing covers the most of South Carolina. A cheaper plan on a carrier that doesn't reach your street costs more than it saves, so start from coverage and pick the plan second. Every carrier's own map lets you check a street address.

Verizon coverage map → AT&T coverage map → T-Mobile coverage map →

Coverage in South Carolina's largest cities

Other states