Internet Providers in San Antonio, TX 78243
PO Box Only (Lackland). Underserved area - limited options. 3 providers available.
Part of San Antonio — see city-wide coverage and provider comparison.
Starlink Available in San Antonio
While San Antonio has cable/DSL options in town, rural properties and areas outside city limits may find Starlink to be the best choice.
Compare providers in your area
Check availability by addressWe earn a commission if you make a purchase, at no extra cost to you.
Local Summary for ZIP 78243
Snapshot based on known ZIP-level and neighborhood patterns. Availability can still differ by building and street.
Internet Providers in ZIP 78243
Compare the 3 internet providers available in San Antonio, TX 78243.
Check exact availability in San Antonio
Quick Comparison
| # | Technology | Contract | Data | Best For | ||||
|---|---|---|---|---|---|---|---|---|
| 1 | StarlinkBest value | Satellite LEO | 220 Mbps | 20 Mbps | $50/mo | None | Unlimited | Rural properties |
| 2 | Viasat | Satellite GEO | 150 Mbps | 3 Mbps | $70/mo | 2 years | 40-300 GB | Moderate rural use |
| 3 | HughesNet | Satellite GEO | 100 Mbps | 3 Mbps | $50/mo | 2 years | 15-200 GB | Basic browsing |
Starlink
Best valueBest for: Rural properties
Viasat
Best for: Moderate rural use
HughesNet
Best for: Basic browsing
About ZIP 78243
PO Box Only (Lackland). Underserved area - limited options. 3 providers available.
Neighborhoods in San Antonio
78243 is the Kelly USA industrial park corridor — former Kelly Air Force Base converted to civilian aerospace and industrial use. Very limited residential population; primarily commercial and industrial addresses with some adjacent residential streets.
Fiber coverage
AT&T Fiber covers approximately 60% of limited residential addresses. Spectrum cable covers 82%. T-Mobile 5G covers 89%.
What internet is available near Kelly USA SA (78243)?
Kelly USA area (78243) residential addresses are served by AT&T Fiber (~60% coverage, from $55/mo), Spectrum cable (~82% coverage, from $30/mo), and T-Mobile 5G (~89% coverage, from $50/mo). Enterprise connections at Port San Antonio use dedicated AT&T fiber.
Quick answers for ZIP 78243
How reliable are provider options in ZIP 78243?
3 providers are currently mapped for this ZIP. Confirm current serviceability with each provider before ordering.
What should households compare first in 78243?
Compare likely provider coverage in the ZIP, then upload/download speeds, monthly total cost, contract terms, and data policies.
Can neighbors in 78243 see different options?
Yes. Network buildouts and line-of-sight constraints can change what is available from one street to another.
Related guides
Learn how to evaluate speed, technology type, and plan value before you switch.
Frequently Asked Questions
Common questions about internet service in San Antonio 78243, TX
Get Personalized Help
Find the best deal in 78243
About ZIP 78243
Bottom Line for ZIP 78243
For most households in ZIP code 78243 (San Antonio, TX), Starlink is the best combination of speed, reliability and price in 2026. Fiber coverage in this ZIP is limited — cable and 5G home internet are the most widely available alternatives. Availability can vary block by block — always confirm current serviceability with the provider before ordering service.
Affiliate Disclosure: InternetNearMe.ai is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may also earn commissions when you click provider links or sign up with providers on this site. This does not affect our editorial independence or the order of recommendations. Our comparisons are based on independent research. Learn more in our editorial standards.
See plans near you