SAN JOSE · CA · FCC DATA

Best cell phone coverage in San Jose San Jose, California · AT&T · T-Mobile · Verizon

Verizon reports the widest coverage in San Jose, CA: 97.9% of the area outdoors, 6.8 points ahead of T-Mobile. AT&T is close enough behind that the top two are effectively level.

Figures are the share of San Jose's area where each carrier reports 4G LTE or 5G service to the FCC, as of December 31, 2025. A state or city figure can hide dead spots, so check your own ZIP code below.

RESULT · SAN JOSE, CA

Coverage in San Jose, CA

Population 997,368 (Census 2024 estimate) · FCC filings as of December 31, 2025

★ WIDEST REPORTED COVERAGE
Verizon
97.9%

Verizon reports 4G LTE or 5G across 97.9% of San Jose outdoors and 90.2% in a moving car. AT&T is close enough behind that the top two are effectively level.

Outdoor
97.9%
In car
90.2%

AT&T vs T-Mobile vs Verizon in San Jose

#1
Verizon
Reported coverage, % of area
Outdoor
97.9%
In car
90.2%
#2
AT&T
Reported coverage, % of area
Outdoor
93.9%
In car
85.8%
#3
T-Mobile
Reported coverage, % of area
Outdoor
91.1%
In car
71.6%

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 San Jose

4G LTE
99.1%
5G 7/1
96.2%
5G 35/3
90.3%

Share of San Jose'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 San Jose. 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.

Questions about coverage in San Jose

Q1

Which carrier has the best coverage in San Jose, CA?

Verizon reports the widest coverage in San Jose, CA: 97.9% of the area outdoors, 6.8 points ahead of T-Mobile. AT&T is close enough behind that the top two are effectively level.

Q2

How much of San Jose has 5G?

Across all carriers, 96.2% of San Jose's area has 5G of at least 7/1 Mbps and 90.3% has 5G of at least 35/3 Mbps outdoors, in filings to the FCC as of December 31, 2025.

Q3

Where do these numbers come from?

From the FCC National Broadband Map. Each carrier files where it offers mobile broadband; the FCC publishes the share of each city's area inside that filing. They are carrier-reported, not measured, so check the carrier's own map for your exact address before you switch.

ZIP codes mostly inside San Jose

95002, 95110, 95111, 95112, 95113, 95116, 95117, 95118, 95119, 95121, 95122, 95123, 95124, 95125, 95126, 95128, 95129, 95130, 95131, 95133, 95134, 95136, 95139, 95148.