FAIRFIELD · CA · FCC DATA

Best cell phone coverage in Fairfield Fairfield, California

AT&T, T-Mobile and Verizon all report outdoor coverage of between 99% and 100% of Fairfield, CA, so no carrier wins on outdoor coverage here. In a moving car the filings differ more: Verizon reports 99% against 86.6% for AT&T.

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

RESULT · FAIRFIELD, CA

Coverage in Fairfield, CA

Population 122,646 (Census 2024 estimate)

What stands out in Fairfield

  • Verizon reports 99% of Fairfield in a moving car, against 33.6% of California as a whole.
  • Beyond the city limits it thins: across Solano County, T-Mobile reports 44.9% in a moving car, against 75.6% in Fairfield.
  • 5G at 35/3 Mbps covers 98.5% of Fairfield, against 47.7% of California.
  • T-Mobile loses the most of Fairfield in a moving car: 99.6% outdoors, 75.6% in a car.
✓ ALL THREE WITHIN 1 POINTS
All three carriers
99–100%

AT&T vs T-Mobile vs Verizon in Fairfield

=
Verizon
Outdoor
100%
In car
99%
=
T-Mobile
Outdoor
99.6%
In car
75.6%
=
AT&T
Outdoor
99%
In car
86.6%

4G and 5G across all carriers in Fairfield

4G LTE
100%
5G 7/1
99.8%
5G 35/3
98.5%

Check your street on each carrier's map

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

Questions about coverage in Fairfield

Q1

How does Fairfield compare with the rest of California?

Outdoors Verizon 100% (state 64.3%), T-Mobile 99.6% (state 51.4%), AT&T 99% (state 57.3%); in a moving car Verizon 99% (state 33.6%), AT&T 86.6% (state 36.2%), T-Mobile 75.6% (state 26.8%).

ZIP codes mostly inside Fairfield

94533, 94535.

See the statewide California comparison, or coverage in San Jose, Sacramento, Oakland, Santa Ana, Glendale, Elk Grove, Salinas, Escondido, Concord, Vallejo, Santa Maria, Downey.

Cities with figures closest to Fairfield's: Savannah, GA, Conroe, TX, Overland Park, KS, Concord, CA, San Bernardino, CA.