Best DSL Internet Providers in San Antonio, Texas (2026)

DSL internet in San Antonio is best served by AT&T Internet with 69.8% area coverage. Monthly pricing starts from $37-55 for speeds of 15-100 Mbps, using existing telephone wiring to your home.

When it comes to internet connectivity in San Antonio, TX, DSL technology provides a stable foundation for households that prefer dedicated, non-shared bandwidth. The major metro supports 1 DSL provider across its 1,434,625 residents. AT&T Internet has established the largest DSL network here, serving approximately 69.8% of the area.

DSL Internet Providers in San Antonio: Comparison Table

Provider	Max Speed	Starting Price	Coverage	Phone
AT&T Internet	100 Mbps	$55/mo	69.8%	1-855-850-5977

DSL Internet Providers Serving San Antonio, TX

Each DSL provider serving San Antonio residents is profiled below with current plan offerings and coverage data.

AT&T Internet DSL Internet in San Antonio

Covering about 69.8% of the San Antonio metro, AT&T Internet offers DSL broadband using existing phone lines.

The AT&T Internet DSL network in San Antonio benefits from no data caps on most residential plans, making it suitable for households with moderate streaming and browsing needs. Speed may vary based on the condition and length of your copper phone line.

Internet 100: 100 Mbps download for $55/mo (VDSL2/IPBB technology)
Internet 25: 25 Mbps download for $55/mo (ADSL2+ technology)

View AT&T Internet DSL plans for San Antonio →

Call 1-855-850-5977 to check AT&T Internet DSL availability at your San Antonio address.

Consider Spectrum as an alternative to DSL in San Antonio if coverage is available. Call 1-844-481-5997 to learn about Spectrum plans.

For a non-DSL option in San Antonio, T-Mobile offers service via 5G, Fixed Wireless, Mobile. Call 1-844-275-9311 to learn about T-Mobile plans.

While HughesNet does not offer DSL in San Antonio, it provides alternative internet service. Call 1-855-543-5405 to learn about HughesNet plans.

Verizon Fios serves San Antonio with Fiber technology. Call 1-855-387-1456 to learn about Verizon Fios plans.

Consider Rise Broadband as an alternative to DSL in San Antonio if coverage is available. Call 1-877-910-6207 to learn about Rise Broadband plans.

How DSL Internet Works in San Antonio

DSL broadband technology in San Antonio, Texas operates over the same copper telephone lines that have served the area for decades. The two primary DSL standards available here are ADSL2+ and VDSL2. ADSL2+ offers reliable speeds up to around 24 Mbps at distances of up to 18,000 feet from the nearest DSLAM, while VDSL2 delivers significantly faster performance, reaching up to 100 Mbps, though it requires a shorter copper loop of roughly 3,000 to 5,000 feet.

The local telephone infrastructure in San Antonio determines which DSL standard is available at each address. The DSLAM serves as the connection point between the telephone company's fiber backbone and the copper last-mile to your home. In denser parts of San Antonio, DSLAMs are often located in street cabinets relatively close to residential clusters, enabling VDSL2 speeds. More spread-out neighborhoods may only qualify for ADSL2+ due to the additional distance the signal must travel.

A key benefit of DSL for San Antonio households is the dedicated nature of the connection. Each subscriber gets their own copper pair from the DSLAM to their premises. This means that even during the busiest evening hours when everyone in the neighborhood is streaming, your DSL connection maintains consistent throughput. Cable internet, by contrast, shares bandwidth among multiple homes on the same node.

Most DSL plans available in San Antonio come without data caps, which is a notable advantage for users who stream HD or 4K video regularly. Additionally, many DSL plans can be bundled with traditional phone service over the same line, often at a discounted rate. For households in San Antonio that still use a landline, this bundling option can provide cost savings compared to purchasing services separately.

Selecting Your DSL Provider in San Antonio

Choosing a DSL internet provider in San Antonio starts with understanding what is available at your address. Unlike cable or fiber, DSL availability is highly location-dependent because it relies on the physical distance of copper wire to the nearest DSLAM. Use your San Antonio ZIP code (78205) to check coverage on provider websites, or call the numbers listed above for personalized availability checks.

Consider your household's bandwidth requirements when selecting a speed tier. For a single person or couple using the internet for email, web browsing, and light streaming, an ADSL plan in the 15-25 Mbps range is typically sufficient. Families in San Antonio with multiple devices connected simultaneously, online gaming, or video conferencing needs will benefit from VDSL2 speeds of 50 Mbps or higher when available.

Compare the complete cost picture across providers. Monthly service charges, modem rental fees, installation costs, and any promotional-to-regular price jumps all affect what you actually pay over time. Some San Antonio providers include the modem at no extra charge, while others charge $10-15 per month for equipment rental, which adds up to $120-180 per year.

Reliability and customer support matter just as much as price and speed. Look for reviews from San Antonio residents about their experience with each DSL provider, including installation wait times, outage frequency, and responsiveness of technical support. For a major metro in the Southwest, local service quality can differ significantly from a provider's national reputation.

San Antonio DSL Internet: Local Market Overview

The San Antonio, Texas broadband market features 10 total internet providers, of which 1 offers DSL service. With a population of 1,434,625, San Antonio represents a significant market in the Southwest region. DSL remains competitive here particularly in neighborhoods where fiber has not yet been deployed and cable service may be limited to certain developments.

Local housing stock influences DSL performance across San Antonio. Older homes with original copper telephone wiring may experience somewhat lower speeds due to aging infrastructure, while newer constructions often have cleaner internal wiring that supports better signal quality. If you are purchasing a home in San Antonio, asking about the age and condition of the telephone wiring can help predict your DSL experience.

Many San Antonio residents use DSL as a backup internet connection alongside a primary cable or fiber service. The low cost and dedicated nature of DSL make it an economical redundancy option for remote workers who cannot afford downtime. Business users in the San Antonio area also leverage DSL for point-of-sale systems and security cameras that benefit from a stable, always-on connection separate from their main network.

Frequently Asked Questions About DSL Internet in San Antonio

Is DSL internet fast enough for streaming in San Antonio?

DSL internet in San Antonio can support streaming depending on your speed tier. VDSL2 plans at 50-100 Mbps handle HD and 4K streaming on multiple devices comfortably. Even ADSL plans at 15-25 Mbps can support HD streaming on one or two devices simultaneously. For best results, connect your streaming device via ethernet when possible.

What DSL speeds are available in San Antonio?

DSL speeds in San Antonio typically range from 15 Mbps (ADSL) to 100 Mbps (VDSL2). Your actual speed depends on the distance between your home and the nearest DSLAM. Homes within 3,000-5,000 feet of a DSLAM may qualify for VDSL2 speeds, while more distant locations will receive ADSL speeds.

Do I need a phone line for DSL in San Antonio?

DSL in San Antonio runs over copper telephone wiring, but most providers offer standalone DSL service that does not require active phone service. The copper pair is used for data only, with a splitter separating voice and internet frequencies. You can add phone service as a bundle, but it is not required for DSL internet.

How does DSL internet compare to cable in San Antonio?

DSL in San Antonio typically offers lower maximum speeds than cable (up to 100 Mbps vs. 1+ Gbps for cable), but provides a dedicated connection that does not slow down during peak usage hours. Cable internet shares bandwidth among homes on the same node, which can cause congestion. DSL also frequently costs less per month than comparable cable plans.

Can I get DSL internet in rural areas near San Antonio?

DSL availability in areas surrounding San Antonio depends on the copper telephone network's reach. Many suburban and semi-rural communities near San Antonio have DSL access, though speeds may be lower due to longer copper loops. Very remote locations far from any DSLAM may be outside DSL range and would need satellite or fixed wireless alternatives.

What is a DSLAM and why does it matter?

A DSLAM (Digital Subscriber Line Access Multiplexer) is the equipment that connects your copper telephone line to the provider's fiber network. In San Antonio, DSLAMs are located in telephone central offices and street-side cabinets. The closer your home is to a DSLAM, the faster and more reliable your DSL connection will be.

Related Internet Resources for San Antonio

The information on this page about DSL providers in San Antonio is researched independently. Affiliate links are used for provider referrals, and we may receive compensation for sign-ups. Our analysis of DSL coverage and plan pricing in San Antonio is not affected by these commercial relationships.

About the Author: InternetProviders.ai provides independent broadband research for consumers. Our team compiled this DSL internet guide for San Antonio, Texas using FCC broadband data, provider plan information, and local market analysis current to 2026.