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San Antonio, TX · 2026 city guide

Best Cell Phone Plans in San Antonio, TX

San Antonio sits in AT&T's home state, and the carrier's footprint here is strong, but T-Mobile has the fastest 5G across the metro and Verizon holds the growing suburbs. The mostly flat terrain is kind to signal citywide. Here's who wins where and the cheapest route onto each network.

San Antonio, Texas
San Antonio, Texas.

Our picks for San Antonio

Quick answer

All three majors cover 100% of San Antonio — the differences are speed, 5G reach, and price.

T-Mobile Fastest in the city — median ~281 Mbps down / ~25 Mbps up, up to 98% 5G reach, and a 10/10 reliability score on Ultra Capacity 5G.
Verizon Most reliable (9.5/10), ~157 Mbps median, with 5G Ultra Wideband in select spots (69% 5G reach).
AT&T Texas home-network strength — ~164 Mbps median, 85% 5G reach, 8.3/10, with faster 5G+ in key areas.
MVNOs Visible & Total (Verizon), Cricket & Boost (AT&T), Mint & Metro (T-Mobile) deliver the same coverage for less.

San Antonio carrier comparison

CarrierNetworkCoverage in San AntonioBest plan & priceScore
T-Mobile T-Mobile Fastest 5G nationally (Ookla H1 2026) $$$ 9.0
AT&T AT&T Broad, reliable coverage $$$ 8.9
Verizon Verizon Strong in the suburbs $$$ 8.6
US Mobile AT&T / Verizon Matches network you pick $$ 9.2
Cricket AT&T Great coverage, retail support $ 8.4

Local considerations & tips

AT&T Home Turf

AT&T is headquartered in Texas and its San Antonio coverage reflects that: broad and reliable citywide. Cricket rides the same network with local retail support, making it a strong budget route onto AT&T.

Sprawling Suburbs

The metro stretches north into Stone Oak and beyond. Coverage stays strong, but T-Mobile's fastest 5G is densest in the urban core while Verizon is the steadier pick out in the newer suburbs.

Event Congestion

Around the Alamodome, Frost Bank Center, and big Fiesta and River Walk crowds, networks congest. Postpaid and priority-data plans keep speed where budget MVNOs slow down.

San Antonio plan FAQ

Which carrier is best in San Antonio?

AT&T has broad, reliable coverage across San Antonio thanks to its Texas home-network strength, while T-Mobile posts the fastest 5G across the metro. Both are excellent; pick AT&T for reach, T-Mobile for speed.

What's the cheapest good plan in San Antonio?

Cricket (AT&T's network) from around $25/mo with local retail support, or Mint Mobile Unlimited at $30/mo on a 12-month plan, on T-Mobile.

Is Verizon good in San Antonio?

Yes, especially in the northern suburbs like Stone Oak and residential areas like Alamo Heights. It trails AT&T and T-Mobile slightly downtown but remains reliable.

Related guides & resources

Bottom line

In San Antonio, AT&T's home-turf coverage and T-Mobile's fast 5G lead — AT&T for reliable reach across the metro, T-Mobile for the fastest speeds in the core. Get either cheaply through US Mobile or Cricket, and test coverage at your address before switching, especially in the growing northern suburbs.

Sources
  1. Verizon, T-Mobile and AT&T coverage maps for San Antonio
  2. Plan prices from our plan reviews; see each review for its checked date
  3. Our scoring method: How we rank

Coverage varies street by street and indoors. Test with a free trial before you switch.

Our pick for San Antonio
US Mobile Unlimited Premium · $32.50/mo
See the plan →