ZIP 78258 broadband research · San Antonio, Texas Last reviewed September 28, 2026
San Antonio ZIP 78258

78258 Internet Providers

Broadband in 78258 includes established cable service, multiple fiber networks, fixed wireless and satellite alternatives. The ZIP covers Stone Oak and other north San Antonio communities where subdivision infrastructure, newer construction and gated or multifamily properties can produce different provider choices from one address to the next.

● ZIP-level research identifies the local broadband market. The FCC National Broadband Map and provider address checkers operate at the location level, so neither a ZIP percentage nor a nearby provider location should be treated as proof that every 78258 address can order the same service.

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Location
San Antonio, Texas · 78258
Main technologies
Fiber · Cable · 5G · Satellite
Local evidence
Provider + community + ZIP records
Research standard
Address verification required

What the 78258 broadband evidence shows

78258 is a multi-network north San Antonio market. Current evidence supports a combination of Spectrum cable, AT&T fiber, Google Fiber construction in Sonterra, limited-footprint fiber from other providers, and fixed-wireless alternatives. A current secondary ZIP dataset also reports substantial overlap among several of these networks.

Fiber

Fiber competition is more than a single-provider story

AT&T identifies fiber service in the San Antonio market and its local area information lists 78258 among the ZIP codes associated with Hollywood Park and fiber service. Separately, the Sonterra Property Owners Association published Google Fiber construction information for the Sonterra community in 78258. Secondary ZIP-level data also reports both AT&T and gFiber in the ZIP.

Cable

Spectrum has a documented physical presence in the ZIP

Spectrum operates a store at 22702 US 281 North, Suite 114, San Antonio, TX 78258. That establishes a current Spectrum operational location inside the ZIP. It is stronger local evidence than a citywide provider list, but a store does not by itself prove residential service at every nearby property.

5G

Fixed wireless is locally visible but address-dependent

T-Mobile's Stone Ridge Market location at 20811 US Highway 281 N, Suite 412, 78258 explicitly lists T-Mobile Home Internet. Verizon also appears in current ZIP-level fixed-wireless data. Wireless eligibility depends on the service address, capacity and signal conditions rather than a simple ZIP-wide percentage.

78258 provider comparison

The table distinguishes direct local evidence from secondary ZIP-level coverage estimates. The percentages are useful for understanding the market, but they are not live address-level ordering results.

Provider Technology 78258 evidence Current advertised ceiling What to verify
AT&T Fiber
Direct + ZIP evidence
Fiber AT&T's San Antonio fiber page says fiber is available in parts of the city. Its local area information lists 78258 as a key ZIP for Hollywood Park with fiber up to 5 GIG. A current secondary 78258 dataset estimates AT&T at about 57% availability. Up to 5 Gbps where available Exact address, fiber tier, installation and upload speed
Google Fiber
Community construction
Fiber The Sonterra Property Owners Association published Google Fiber construction notices for Sonterra, whose management office is in 78258. A current secondary ZIP dataset estimates gFiber at about 59% of the ZIP. Construction evidence is stronger than a generic San Antonio provider list, but it does not establish service at every 78258 address. Up to 8 Gbps in current Texas offerings Exact address and whether the local build is service-ready
Spectrum
Local ZIP presence
Cable Spectrum has an official store at 22702 US 281 North, Suite 114, San Antonio, TX 78258. Current secondary ZIP data reports Spectrum at roughly 96% availability, making it one of the broadest reported wired footprints in the ZIP. Up to 2 Gbps in eligible markets Residential plan, upload speed, technology and current price
T-Mobile 5G Home Internet
Local Home Internet location
5G fixed wireless T-Mobile's Stone Ridge Market store at 20811 US Highway 281 N, Suite 412, 78258 explicitly lists Home Internet and an availability check. A current secondary ZIP dataset reports roughly 56% coverage. Plan-dependent; wireless speeds vary Address eligibility, network capacity and signal
Verizon 5G Home Internet
ZIP-level evidence
Fixed wireless Current secondary ZIP-level data reports Verizon 5G Internet at about 50% availability in 78258. This is a useful comparison layer, not a guarantee that a particular home qualifies. Plan and location dependent Exact address, 5G network type and current capacity
GVTC
Limited local footprint
Fiber / legacy DSL GVTC states that it provides fiber communications to homes in far north San Antonio and surrounding Hill Country communities. Current secondary ZIP data reports a roughly 10% 78258 footprint. That makes GVTC relevant to some addresses but not a ZIP-wide assumption. Up to 5 Gbps where offered Exact property and current GVTC service footprint
Astound Broadband
Small ZIP footprint
Fiber / cable Astound lists San Antonio as a Texas service market. A current secondary 78258 dataset reports a small footprint of roughly 5%. Because the local share is limited, address verification is more important than the citywide service label. Plan-dependent; multi-gig in applicable markets Whether the individual property is inside the local footprint
Satellite providers
Broad geographic option
Satellite Starlink, Viasat and Hughesnet can serve locations that meet their equipment and service requirements without relying on neighborhood cable or fiber plant. They are relevant mainly as alternatives when wired or terrestrial wireless choices do not fit the property. Provider and plan dependent Sky view, latency, equipment, data policy and current plan terms
ZIP-level interpretation: A current secondary 78258 dataset reports approximately 96% Spectrum, 59% gFiber, 57% AT&T, 56% T-Mobile, 50% Verizon, 10% GVTC and 5% Astound availability. Those figures are useful for mapping the competitive landscape, but they should not be presented as household-level guarantees. The FCC says its National Broadband Map shows provider-reported availability at individual broadband serviceable locations and lets users inspect the technologies and maximum advertised speeds reported for an address.

Internet providers serving the 78258 market

The provider descriptions below emphasize evidence that is specific to 78258 or to north San Antonio. Where the evidence comes from a secondary ZIP dataset, it is identified as such instead of being presented as a provider-confirmed service guarantee.

AT&T Fiber

Fiber San Antonio market Up to 5 Gbps

AT&T's current San Antonio fiber page says fiber is available in parts of the city and directs customers to address-level verification. AT&T's local area information identifies Hollywood Park with ZIP 78258 among the communities where fiber is listed up to 5 GIG. A current secondary ZIP dataset also reports AT&T in more than half of 78258.

  • Fiber should be checked before assuming an AT&T address is limited to legacy service.
  • AT&T advertises up to 5 Gbps where its current fiber network supports the tier.
  • The exact property determines whether fiber and the higher tiers are orderable.
Local evidence: AT&T's current San Antonio and local area pages connect 78258 with its fiber service footprint, while the company's fiber map states that coverage is approximate and must be confirmed by address.

Google Fiber

Fiber Sonterra construction evidence Up to 8 Gbps

Google Fiber is the most important new-build fiber story found inside 78258. The Sonterra Property Owners Association published an introduction and construction notice stating that Google Fiber would install basic infrastructure in the community and work individually with property owners who subscribe. The same community site is based at 401 E. Sonterra Blvd., San Antonio, TX 78258.

  • The Sonterra evidence is specific to a 78258 community rather than only to San Antonio.
  • Construction information does not mean every street or unit is already service-ready.
  • Google Fiber's current Texas offerings reach up to 8 Gbps in eligible locations.
Local evidence: Sonterra POA published Google Fiber construction information and instructed residents that the provider would extend service from the right-of-way to individual homes. Current secondary ZIP data also reports gFiber in 78258.

Spectrum

Cable Official 78258 location Up to 2 Gbps in select markets

Spectrum has a directly documented location at 22702 US 281 North, Suite 114, San Antonio, TX 78258. The location supports Internet service activities, including equipment pickup and installation scheduling. Current secondary ZIP data reports Spectrum as the most extensive wired footprint in 78258.

  • Cable is a major established residential option across the ZIP.
  • The local store proves an active Spectrum presence inside 78258, not universal residential eligibility.
  • Plan upload speeds and current pricing should be checked at the property rather than inferred from citywide advertising.
Local evidence: Spectrum's official store locator identifies 22702 US 281 North, Suite 114, San Antonio, TX 78258.

T-Mobile 5G Home Internet

5G fixed wireless Stone Ridge Market Capacity-dependent

T-Mobile's Stone Ridge Market Experience Store at 20811 US Highway 281 N, Suite 412, San Antonio, TX 78258 explicitly lists T-Mobile Home Internet and an availability check. This is unusually strong local evidence for the presence of the home-internet product in the ZIP, although the store location itself does not establish eligibility for every nearby residence.

  • Service uses T-Mobile's wireless network rather than a dedicated cable or fiber line to the home.
  • Eligibility can change with network capacity and signal conditions.
  • Two nearby addresses can receive different availability results.
Local evidence: T-Mobile's official 78258 store page lists Home Internet and provides a current availability check.

Verizon 5G Home Internet

Fixed wireless ZIP-level evidence Address dependent

Verizon appears in current secondary ZIP-level data for 78258 with a reported footprint of about half the ZIP. That makes Verizon relevant when comparing wireless alternatives to the wired networks, but the data should be treated as a coverage indicator rather than a live eligibility result.

  • Wireless service can depend on the local 5G network deployment.
  • Building construction and indoor signal conditions can affect the practical result.
  • Use Verizon's current address checker before treating it as an option for a specific property.
Evidence standard: Verizon is included because current ZIP-level broadband data reports fixed-wireless availability in 78258; no ZIP-wide claim is made that every household can order it.

GVTC

Fiber / legacy DSL Far north San Antonio Limited ZIP footprint

GVTC states that it provides fiber-optic communications to homes in far north San Antonio and surrounding Hill Country communities. A current secondary ZIP dataset reports GVTC at about 10% availability in 78258. That combination makes GVTC worth checking for properties within its local footprint, especially in the northern part of the San Antonio market.

  • GVTC's own service description is geographically narrower than a citywide provider claim.
  • Current ZIP data indicates that the footprint is limited rather than universal.
  • Exact address verification is required before identifying GVTC as a residential option.
Evidence standard: GVTC's official service-area description covers far north San Antonio; the 78258 share comes from current secondary ZIP-level data.

Astound Broadband

Fiber / cable San Antonio market Small ZIP footprint

Astound identifies San Antonio as one of its Texas service markets and operates a fiber-powered network there. Current secondary ZIP data reports only a small Astound footprint in 78258, so it should be treated as a property-specific possibility rather than a ZIP-wide default.

  • Astound's San Antonio presence does not mean all north San Antonio addresses are serviceable.
  • The current 78258 footprint reported by secondary data is much smaller than Spectrum's.
  • Astound's own address checker is the correct way to establish current service.
Evidence standard: Astound's official San Antonio page confirms the market; the small 78258 footprint is based on current secondary ZIP-level data.

78258 internet speed guide

The practical speed requirement depends on household use, but 78258 residents also have a meaningful technology choice: cable, fiber and fixed wireless can deliver very different upload capacity and latency even when their advertised download speeds look similar.

100–300

Mbps

Adequate for ordinary browsing, video calls, streaming and smaller households when the connection is stable.

500 Mbps

Mbps

Useful for several simultaneous users, multiple streaming devices and heavier downloads without immediately moving into multi-gig tiers.

1–2 Gbps

High-capacity plans

More relevant for large households, extensive device counts, frequent large downloads or homes with multiple high-demand users.

3–8 Gbps

Multi-gig fiber

Relevant only where the local fiber network and property support the tier. The home router, Ethernet equipment and client devices can become the limiting factor.

Do not compare download speed alone. In 78258, a fiber plan, a cable plan and a 5G Home Internet plan can all advertise high download capacity while differing materially in upload speed, latency, congestion behavior, installation requirements and address-level availability.

Connection types in 78258

The local market is better understood as overlapping infrastructure systems than as a single ZIP-wide provider hierarchy.

Fiber

AT&T Fiber is documented in the north San Antonio market, while Google Fiber construction is specifically documented in Sonterra. GVTC also serves parts of far north San Antonio. Fiber offers high upload capacity, but the physical fiber route must reach the property.

Cable

Spectrum is a major wired option in 78258, with an official store inside the ZIP and a large reported secondary coverage footprint. Cable can provide high download speeds, but upload performance may differ substantially from fiber.

5G / fixed wireless

T-Mobile has a documented Home Internet location in 78258, and Verizon appears in current ZIP-level fixed-wireless data. These services can avoid a dedicated wired line to the home but depend on network capacity and radio conditions.

Satellite

Satellite remains a geographically broad fallback. It does not depend on local cable or fiber plant, but latency, equipment requirements, weather effects and plan terms make it materially different from terrestrial broadband.

What is different about broadband in 78258?

78258 covers a large north San Antonio residential area where Stone Oak, Sonterra, Bulverde Village and surrounding communities have developed through different periods. That matters because broadband infrastructure follows subdivision streets, utility corridors, building construction and provider expansion projects rather than ZIP boundaries.

1

Google Fiber construction is documented inside Sonterra

The Sonterra Property Owners Association published a Google Fiber introduction and construction notice. It states that Google Fiber would install basic infrastructure in the street or right-of-way and work with individual property owners who subscribe. This is direct community-level evidence of a fiber build inside 78258, rather than an inference from a San Antonio-wide provider list.

2

Stone Oak has multiple provider touchpoints along US 281

AT&T operates a Stone Oak store at 22502 U.S. Highway 281 North that lists home internet among its services. Spectrum has a store at 22702 US 281 North, Suite 114, and T-Mobile's Stone Ridge Market location at 20811 US Highway 281 N, Suite 412 lists Home Internet. These locations establish a concentrated operational presence from multiple providers inside the ZIP, although retail locations are not substitutes for address-level network records.

3

Stone Oak's community structure matters to the address check

The San Antonio Public Library identifies Parman Branch Library at 20735 Wilderness Oak in 78258 and describes the surrounding service area as including Stone Oak, 30 homeowners associations and numerous schools and churches. A ZIP containing many subdivisions and homeowner associations can have distinct underground utility, easement and building arrangements, so a provider list should not be read as a uniform street-by-street map.

4

Fiber availability is expanding while legacy infrastructure remains

Current secondary ZIP data shows both substantial fiber reporting and a remaining legacy AT&T footprint. That mix is important: an address in 78258 may have a choice between fiber and cable, while another address may still see fewer wired options. The FCC's map is designed around individual serviceable locations for exactly this reason.

5

North San Antonio and nearby Hill Country service areas overlap

GVTC describes its fiber service area as including far north San Antonio and nearby Hill Country communities. That geographic description overlaps the broader market around 78258, but it does not establish that every ZIP address is inside the GVTC network. Provider footprints should be checked at the property rather than inferred from neighboring communities.

78258 local broadband findings

These findings separate documented local facts from the interpretation that can reasonably be drawn from ZIP-level broadband data.

Finding Evidence What it means for a 78258 address
AT&T fiber AT&T identifies 78258 among key ZIPs associated with Hollywood Park and fiber service; its San Antonio page confirms fiber is available in parts of the city. Check AT&T Fiber directly rather than assuming AT&T means legacy DSL or copper service.
Google Fiber Sonterra POA published Google Fiber construction information specific to its 78258 community. Some 78258 properties may be within a Google Fiber build, but construction status can differ by street or property.
Spectrum Official Spectrum store at 22702 US 281 North, Suite 114, 78258; secondary ZIP data reports a broad footprint. Spectrum should be included in wired address comparisons, while the exact plan must still be verified.
T-Mobile Home Internet Official T-Mobile Stone Ridge Market page lists Home Internet at 20811 US Highway 281 N, Suite 412, 78258. 5G home internet is a documented local product, but eligibility is capacity and signal dependent.
GVTC GVTC describes fiber service in far north San Antonio; secondary ZIP data reports a limited 78258 footprint. Worth checking for qualifying northern addresses, but not a ZIP-wide assumption.
Astound Astound confirms San Antonio as a Texas market; secondary ZIP data reports a small 78258 footprint. Potentially relevant to specific properties, especially where the local network reaches the address.

Areas and development patterns inside 78258

These locations are geographic reference points for understanding the ZIP's broadband infrastructure. They are not claims that every address in a named area receives the same provider or speed.

Stone Oak A major residential area within 78258 with numerous homeowner associations and established subdivision infrastructure.
Sonterra A 78258 community with documented Google Fiber construction notices, making it one of the clearest local examples of fiber expansion.
US 281 corridor The ZIP's major north-south corridor contains commercial and residential development and several provider retail locations.
Wilderness Oak area The Parman Branch Library at 20735 Wilderness Oak provides a concrete geographic reference inside the Stone Oak portion of the ZIP.
Bulverde Village area Residential development in the northern part of the ZIP overlaps the broader far-north San Antonio market where GVTC also describes service.
Multifamily and gated properties Building wiring, easements, installed equipment and property-level arrangements can create different provider choices even on nearby streets.
Why this matters: 78258 is not a single subdivision and its provider networks do not follow the ZIP outline. A newer fiber build can reach one development while an adjacent established subdivision remains dependent on cable or another wired network. Apartment and gated communities can add another layer of building-specific infrastructure.

Nearby San Antonio ZIP-code broadband guides

Nearby ZIP codes can have materially different provider footprints. Use them as separate research areas rather than treating a neighboring ZIP as a proxy for a 78258 address.

How to verify internet service at a 78258 address

Start with the wired networks documented in the ZIP, then check each provider's current address tool. The FCC National Broadband Map is useful for a second view of the reported networks at the location.

1. Check the wired networks first

  • Check AT&T for current fiber eligibility.
  • Check Google Fiber if the property is in a Sonterra or other current build area.
  • Check Spectrum for cable service at the exact property.
  • Check GVTC and Astound where their limited local footprints may apply.

2. Compare fixed wireless separately

  • Check T-Mobile 5G Home Internet at the exact address.
  • Check Verizon 5G Home Internet independently.
  • Do not infer eligibility from a nearby retail store or another household.
  • Consider signal, capacity and building construction.

3. Compare more than download speed

  • Upload speed
  • Latency
  • Data caps or network-management policies
  • Equipment and Wi-Fi requirements
  • Installation terms
  • Introductory versus regular pricing

4. Treat ZIP-level data as a research layer

The FCC says its National Broadband Map reports provider-submitted fixed broadband availability at individual locations and shows the technologies and maximum advertised speeds reported for those locations. ZIP-level compilations are useful for finding the local provider landscape, but the address-level map and provider checker should take precedence for a real property.

What to compare before choosing a 78258 connection

The local market makes a technology-first comparison more useful than choosing strictly by the highest advertised download speed.

Fiber versus cable

Look at upload capacity

Fiber can provide substantially stronger upload capacity than cable at similar download tiers. That matters for cloud backups, large file transfers, remote production and households that send substantial amounts of data.

Fixed wireless

Check the actual address

T-Mobile and Verizon eligibility can depend on local capacity and wireless conditions. A qualifying address a few streets away does not establish that another 78258 property will qualify.

Subdivision infrastructure

Ask which networks reach the building

In established subdivisions, gated communities and multifamily properties, the important question is not simply which providers serve San Antonio. Confirm which physical networks reach the property and whether the building's wiring supports the offered tier.

Check the exact 78258 address

ZIP-level research identifies the local market. Provider address tools determine what can actually be ordered at the property.

Check Availability

Sources and methodology

This page gives greater weight to official provider and local-community sources for current service-area evidence, while using current secondary ZIP-level broadband datasets as a coverage layer. Claims are deliberately separated into documented local presence, provider market presence and ZIP-level estimates.

Official provider and local sources

  • AT&T's current San Antonio fiber page and AT&T local area information for 78258 / Hollywood Park.
  • AT&T's current fiber coverage map, which states that coverage is approximate and requires address verification.
  • Google Fiber's current Texas service information and the Sonterra Property Owners Association's Google Fiber construction notices.
  • Spectrum's official store locator for 22702 US 281 North, Suite 114, San Antonio, TX 78258.
  • T-Mobile's official Stone Ridge Market page at 20811 US Highway 281 N, Suite 412, San Antonio, TX 78258, which lists Home Internet.
  • GVTC's current description of fiber service in far north San Antonio and surrounding Hill Country communities.
  • Astound's current San Antonio service-area information.
  • San Antonio Public Library's Parman Branch page at 20735 Wilderness Oak, which documents the Stone Oak community context inside 78258.

Broadband data and interpretation

  • FCC National Broadband Map / Broadband Data Collection guidance: fixed broadband availability is reported at individual serviceable locations and includes provider, technology and advertised speed information.
  • Current secondary 78258 broadband compilations were used to identify reported ZIP-level shares for Spectrum, gFiber, AT&T, T-Mobile, Verizon, GVTC and Astound.
  • Secondary ZIP-level percentages are treated as estimates or dataset outputs, not live provider guarantees.
  • Provider address checkers take precedence when deciding whether a particular home, apartment or unit can actually order service.
Research limitation: A ZIP code is a mailing boundary, not a broadband service boundary. Provider coverage can differ by street, census block, subdivision, building, apartment unit and serviceable location. This page therefore does not convert a ZIP-level percentage into a claim that every 78258 household can order the same provider, technology or speed.

78258 internet provider FAQ

Answers below are based on the provider records, local community evidence and ZIP-level broadband information reviewed for this guide.

What internet providers serve ZIP code 78258?
Current evidence identifies AT&T Fiber, Spectrum, Google Fiber construction in Sonterra, T-Mobile Home Internet, Verizon fixed wireless, GVTC and a smaller Astound footprint in the broader 78258 market. Satellite providers are also geographically available. The exact provider list for a property should be confirmed with address-level tools.
Is AT&T Fiber available in 78258?
AT&T's current local area information lists 78258 among the key ZIPs associated with Hollywood Park and fiber service, and AT&T's San Antonio page says fiber is available in parts of the city. The company still requires an exact-address check because not every property in a ZIP necessarily has the same network plant.
Is Google Fiber available in 78258?
Google Fiber construction is directly documented in Sonterra by the Sonterra Property Owners Association, which published construction information and instructions for residents. That evidence establishes a local build in a 78258 community, but it should not be interpreted as proof that every 78258 address is currently serviceable.
Does Spectrum serve 78258?
Spectrum has an official store at 22702 US 281 North, Suite 114, San Antonio, TX 78258, confirming a current operational presence inside the ZIP. Current secondary ZIP data also reports a broad Spectrum footprint. Residential service and the plan available at a particular property should still be checked by address.
Is T-Mobile 5G Home Internet available in 78258?
T-Mobile's Stone Ridge Market Experience Store at 20811 US Highway 281 N, Suite 412, San Antonio, TX 78258 lists T-Mobile Home Internet and an availability check. The retail location confirms the product's local presence, but eligibility for a residence depends on the specific address, network capacity and wireless conditions.
Can two nearby homes in 78258 have different providers?
Yes. Fiber and cable infrastructure can stop at different property boundaries, while fixed-wireless eligibility can change with network capacity and signal conditions. Apartment buildings, gated communities and subdivision infrastructure can add further differences.
Is the fastest advertised speed necessarily the best connection?
Advertised download speed is only one measure. Upload capacity, latency, congestion, equipment, installation requirements, regular pricing and actual address-level technology can materially affect the usefulness of a connection.
Why does this page use ZIP-level data instead of claiming exact coverage?
ZIP-level data is useful for identifying the provider market around 78258, but broadband networks do not follow ZIP boundaries. The FCC National Broadband Map is designed to show fixed broadband at individual serviceable locations, while provider address checkers determine what the provider is currently willing to install or sell at a specific property.
Availability disclaimer: Provider names, technologies, advertised speeds, pricing and availability can change. ZIP-level broadband information does not guarantee service at an individual address. Apartment buildings, subdivisions, gated communities and individual properties may have different network infrastructure. Always confirm service, technology, speed, equipment requirements and current pricing directly with the provider before ordering.
Check 78258 Availability