Compare cell coverage in San Bernardino County, CA

See the best cell service provider in San Bernardino 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 84% of San Bernardino County covered by 5G service and 91% covered by 4G LTE service.

84%

covered by 5G

91%

covered by 4G LTE

Amount of San Bernardino County covered:: 91.2%
Excellent reception: 9.0%
Good reception: 27.0%
Average reception: 33.6%
Fair reception: 20.3%
Poor reception: 1.3%
No Signal: 8.8%

Verizon has 87% of San Bernardino County covered by 5G service and 98% covered by 4G LTE service.

87%

covered by 5G

98%

covered by 4G LTE

Amount of San Bernardino County covered:: 97.7%
Excellent reception: 40.8%
Good reception: 36.1%
Average reception: 17.0%
Fair reception: 3.5%
Poor reception: 0.3%
No Signal: 2.3%

T-Mobile has 82% of San Bernardino County covered by 5G service and 89% covered by 4G LTE service.

82%

covered by 5G

89%

covered by 4G LTE

Amount of San Bernardino County covered:: 89.3%
Excellent reception: 28.0%
Good reception: 36.8%
Average reception: 24.2%
Fair reception: 0.2%
No Signal: 10.7%

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	91% / 84%	98% / 87%	89% / 82%

Coverage over time

Cities in San Bernardino County