Medina County
400 Mbps Air Fiber. No contracts. No data caps. Local support you can actually reach.
Dunlay is a small stop on US-90 between Castroville and Hondo, in the middle of Medina County's farming country.
Wired options along this stretch of US-90 are mostly older DSL, and many residents have turned to satellite. STI's Air Fiber is 400 Mbps down / 25 Mbps up for $65/month, with no contract and support based just down the road in Hondo.
ZIP code served: 78861 — Dunlay has no ZIP code of its own; most addresses use Hondo's 78861, though some toward Castroville may use 78009.
Coverage note: Coverage along the US-90 corridor is generally good. If your property is down a county road away from the highway, call (830) 429-4149 to confirm line-of-sight before scheduling.
Dunlay was named in 1895 for railroad conductor Jerry Dunlay; Medina Valley ISD serves the area today.
Nearby: STI also serves Hondo on the same $65/month plan.
When something goes wrong, you call (830) 429-4149 — and you talk to someone who lives and works in South Texas. Not a ticket system. Not an overseas call center. And new customers are installed within one business day.
Broadband Facts
South Texas Internet
Velocity 400
Fixed Wireless Broadband
This Monthly Price is not an introductory rate.
This Monthly Price does not require a contract.
Additional Charges & Terms
Discounts & Bundles
Call (830) 429-4149 to ask about available discounts.
Speeds Provided with Plan
Data Included with Monthly Price
Customer Support: (830) 429-4149
Yes — South Texas Internet serves Dunlay (ZIP code 78861) and the surrounding Medina County area with Air Fiber fixed wireless. Coverage along the US-90 corridor is generally good. If your property is down a county road away from the highway, call (830) 429-4149 to confirm line-of-sight before scheduling.
Coverage along the US-90 corridor through Dunlay is generally good. If your property is down a county road away from the highway, call (830) 429-4149 — at the edges, distance and line-of-sight decide it.
One plan, one price: Velocity 400 is $65/month flat for 400 Mbps download and 25 Mbps upload. No contracts, no data caps, no setup fees, and taxes are included.
Air Fiber comes from a ground-based tower here in South Texas, not a satellite in orbit. Many Medina County households compare it with Starlink, whose 400 Mbps plan is $130/month; STI is $65/month with 25 Mbps upload for video calls and remote work — $780/year less than Starlink's 400 Mbps plan.
Call (830) 429-4149. Support is based in Hondo, TX — you talk to someone local, not an overseas call center — and new customers are typically installed within one business day.
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