FREMONT · CA · FCC DATA

Best cell phone coverage in Fremont Fremont, California

Verizon reports the widest coverage in Fremont, CA: 100% of the area outdoors, 20.1 points ahead of AT&T. The lead is bigger than the 11.5% of Fremont, CA that is water, so it holds on land. T-Mobile is close enough behind to call the top two level.

Carrier-reported coverage from FCC carrier filings as of December 31, 2025, not measured signal. How these figures are read

RESULT · FREMONT, CA

Coverage in Fremont, CA

Population 228,192 (Census 2024 estimate)

What stands out in Fremont

  • Verizon reports 97.7% of Fremont in a moving car, against 33.6% of California as a whole.
  • Beyond the city limits it thins: across Alameda County, Verizon reports 67.6% in a moving car, against 97.7% in Fremont.
  • T-Mobile loses the most of Fremont in a moving car: 87.4% outdoors, 52.8% in a car.
  • 5G at 35/3 Mbps covers 89.4% of Fremont, against 47.7% of California.
★ WIDEST REPORTED COVERAGE
Verizon
100%
Outdoor
100%
In car
97.7%

AT&T vs T-Mobile vs Verizon in Fremont

#1
Verizon
Outdoor
100%
In car
97.7%
#2
T-Mobile
Outdoor
87.4%
In car
52.8%
#3
AT&T
Outdoor
79.9%
In car
67.5%

4G and 5G across all carriers in Fremont

4G LTE
100%
5G 7/1
98.9%
5G 35/3
89.4%

Check your street on each carrier's map

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

Around Fremont, in Alameda County

The towns nearby where one carrier reports the least outdoors: Union City (AT&T 81.7%), Sunol (T-Mobile 84.5%), San Leandro (T-Mobile 85.8%), Castro Valley (T-Mobile 93.3%).

Questions about coverage in Fremont

Q1

How does Fremont compare with the rest of California?

Outdoors Verizon 100% (state 64.3%), T-Mobile 87.4% (state 51.4%), AT&T 79.9% (state 57.3%); in a moving car Verizon 97.7% (state 33.6%), AT&T 67.5% (state 36.2%), T-Mobile 52.8% (state 26.8%).

ZIP codes mostly inside Fremont

94536, 94538, 94539, 94555.

See the statewide California comparison, or coverage in San Diego, Long Beach, Chula Vista, Moreno Valley, Huntington Beach, Elk Grove, Sunnyvale, Pomona, Santa Clara, Fairfield, Berkeley, Downey.

Cities with figures closest to Fremont's: Urban Honolulu, HI, Oakland, CA, Vallejo, CA, New York, NY, Tacoma, WA.