Compare cell coverage in Diamond Bar, CA

See the best cell service provider in Diamond Bar 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

Excellent coverage

AT&T has 90% of Diamond Bar covered by 5G service and 100% covered by 4G LTE service.

90%

covered by 5G

100%

covered by 4G LTE

Amount of Diamond Bar covered:
100%
Excellent reception
18.0%
Good reception
46.5%
Average reception
29.5%
Fair reception
6.0%

Verizon

Excellent coverage

Verizon has 96% of Diamond Bar covered by 5G service and 100% covered by 4G LTE service.

96%

covered by 5G

100%

covered by 4G LTE

Amount of Diamond Bar covered:
100%
Excellent reception
45.6%
Good reception
43.3%
Average reception
11.1%

T-Mobile

Excellent coverage

T-Mobile has 97% of Diamond Bar covered by 5G service and 100% covered by 4G LTE service.

97%

covered by 5G

100%

covered by 4G LTE

Amount of Diamond Bar covered:
100%
Excellent reception
47.5%
Good reception
41.0%
Average reception
11.5%

Coverage data: FCC National Broadband Map

Coverage over time

FCC data as ofAT&T 4G / 5GVerizon 4G / 5GT-Mobile 4G / 5G
June 30, 2022100% / 90%100% / 96%100% / 97%

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