Compare cell coverage in San Diego County, CA

See the best cell service provider in San Diego County with our network coverage comparison of AT&T, Verizon, and T-Mobile. Use the search box to see cell coverage down to a street address.

FCC data as of June 30, 2022, updated November 18, 2022

AT&T has 62% of San Diego County covered by 5G service and 66% covered by 4G LTE service.

62%

covered by 5G

66%

covered by 4G LTE

Amount of San Diego County covered:: 66.4%
Excellent reception: 10.3%
Good reception: 20.1%
Average reception: 22.7%
Fair reception: 12.6%
Poor reception: 0.6%
No Signal: 33.6%

Verizon has 63% of San Diego County covered by 5G service and 70% covered by 4G LTE service.

63%

covered by 5G

70%

covered by 4G LTE

Amount of San Diego County covered:: 69.7%
Excellent reception: 29.4%
Good reception: 25.0%
Average reception: 12.5%
Fair reception: 2.8%
Poor reception: 0.1%
No Signal: 30.3%

T-Mobile has 58% of San Diego County covered by 5G service and 68% covered by 4G LTE service.

58%

covered by 5G

68%

covered by 4G LTE

Amount of San Diego County covered:: 68.1%
Excellent reception: 21.6%
Good reception: 31.1%
Average reception: 15.0%
Fair reception: 0.4%
No Signal: 31.9%

Coverage data: FCC National Broadband Map

Coverage over time

FCC data as of	AT&T 4G / 5G	Verizon 4G / 5G	T-Mobile 4G / 5G
June 30, 2022	66% / 62%	70% / 63%	68% / 58%

Coverage over time

Cities in San Diego County