Broadband in 78219 is more competitive than older provider listings suggest. Current ZIP-level records show a large Spectrum cable footprint, substantial AT&T fiber coverage, a significant Astound Broadband cable network, and extensive fixed-wireless coverage from Verizon and T-Mobile. The ZIP also overlaps the independent City of Kirby and established East San Antonio communities, so network availability can change materially from one property to another.
Enter a five-digit ZIP code to open the corresponding local broadband guide.
Current ZIP-level records show a substantially different broadband market from older 78219 provider pages. Fiber is now a major part of the local picture, while Spectrum and Astound provide competing cable networks and fixed wireless adds another layer of competition.
Current ZIP-level records report AT&T fiber availability at about 80.5% of 78219. AT&T's own San Antonio-area information also specifically lists Kirby and China Grove with ZIP 78219 among the communities associated with fiber service up to 5 GIG.
Spectrum cable is reported across roughly 99% of 78219, while Astound Broadband cable covers about 49%. Astound also has a smaller fiber footprint. This means some properties may have a choice between fiber and multiple wired networks, while others may have fewer options.
Current ZIP-level records report Verizon fixed wireless at roughly 90% coverage and T-Mobile Home Internet at roughly 84%. Alamo Broadband is another meaningful local fixed-wireless provider in newer datasets. Wireless eligibility still depends on the exact property and network capacity.
The table separates provider evidence reported for the ZIP from address-level ordering information. Current FCC-derived data are useful for identifying the local market, but provider availability tools remain the appropriate source for a specific property.
| Provider | Technology | 78219 evidence | Advertised maximum | Verify |
|---|---|---|---|---|
|
AT&T Fiber
Major fiber footprint
|
Fiber | Current ZIP-level records report approximately 80.5% fiber availability. AT&T separately identifies Kirby and China Grove ZIP codes including 78219 with fiber service. | Up to 5 Gbps where available | |
|
Spectrum
Very broad ZIP footprint
|
Cable; fiber in selected San Antonio locations | Current ZIP-level records report approximately 99.3% Spectrum cable coverage in 78219. | Up to 1 Gbps on reported cable service | |
|
Astound Broadband
Large local footprint
|
Cable; limited fiber | Current ZIP-level records report approximately 48.6% cable availability and a smaller fiber footprint of about 4.7%. | Up to 1.5 Gbps on current San Antonio residential offers | |
|
T-Mobile 5G Home Internet
Large wireless footprint
|
5G fixed wireless | Current ZIP-level records report approximately 84% fixed-wireless availability in 78219. | Address and network dependent | |
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Verizon 5G Home Internet
Large wireless footprint
|
Fixed wireless | Current ZIP-level records report roughly 90% Verizon fixed-wireless availability, with most reported locations reaching up to 300 Mbps in the underlying dataset. | Up to 300 Mbps in most reported ZIP locations | |
|
EarthLink
Fiber retail provider
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Fiber; DSL in some records | Current ZIP-level records report EarthLink fiber availability at approximately 80.5%. EarthLink also maintains a San Antonio fiber service area and requires an address check for the actual plan. | Up to 5 Gbps where available | |
|
Alamo Broadband
Local fixed wireless
|
Fixed wireless | Current 2026 ZIP-level datasets report Alamo Broadband fixed wireless across a substantial portion of 78219. The reported footprint and maximum speeds vary by location. | Up to about 1 Gbps in reported locations | Property and tower coverage dependent |
|
Ziplink Internet
Limited fixed wireless
|
Fixed wireless | Current ZIP-level datasets report a smaller Ziplink fixed-wireless footprint in 78219. Older records show broader coverage, so the current address check should take precedence. | Location dependent | Address and local wireless coverage |
|
Satellite providers
Broad geographic option
|
Satellite | Satellite broadband remains geographically available throughout 78219 because it does not depend on the same local cable or fiber plant as terrestrial providers. | Provider and plan dependent | Equipment, sky view, latency and plan terms |
The provider descriptions below focus on networks with current evidence in 78219. Major wired networks are separated from smaller wireless and retail-provider footprints so the ZIP-level evidence is not overstated.
AT&T is one of the most important changes from older 78219 broadband research. Earlier listings often represented AT&T primarily as a DSL provider, but current ZIP-level records identify a large AT&T fiber footprint. AT&T's own San Antonio-area information specifically lists Kirby and China Grove with ZIP 78219 among communities associated with fiber service.
Spectrum remains the broadest wired network reported in the current 78219 data. ZIP-level records put Spectrum cable availability at about 99%, making it the network most likely to appear across different parts of the ZIP. Spectrum also markets fiber service in San Antonio, but the fiber product should not be assumed at a 78219 address simply because Spectrum appears in the ZIP.
Astound Broadband is a meaningful second wired network in 78219 rather than a fringe provider. Current ZIP-level records report cable service across approximately 48.6% of the ZIP and a smaller fiber footprint. The cable network reaches multiple portions of the ZIP, while the fiber footprint is concentrated in fewer locations.
T-Mobile Home Internet is a substantial part of the 78219 broadband market. Current ZIP-level records report fixed-wireless availability across approximately 84% of the ZIP. The reported maximum speed varies by location in the underlying data, illustrating why a T-Mobile address check matters more than a ZIP-wide speed figure.
Verizon is another major wireless competitor in 78219. Current ZIP-level records report approximately 89.9% fixed-wireless availability, with most reported locations showing a maximum of 300 Mbps in the underlying dataset. Verizon itself states that 5G Home eligibility is determined at the address level and can differ between nearby homes.
EarthLink appears in current 78219 records as a major fiber retail provider, with reported availability closely matching the AT&T fiber footprint in the ZIP. EarthLink also markets fiber service in San Antonio with speeds up to 5 Gbps. Because retail providers can use underlying network partners, the exact infrastructure and service terms should be confirmed at the address.
Alamo Broadband is an important local fixed-wireless option that is easy to miss if a 78219 guide lists only the national providers. Current 2026 ZIP-level data report a substantial Alamo Broadband footprint in 78219, with reported maximum speeds reaching approximately 1 Gbps in some locations.
Ziplink Internet appears in current 78219 fixed-wireless records, but its reported footprint is much smaller than Spectrum, AT&T, Astound, Verizon or T-Mobile. That makes it a property-specific possibility rather than a network that should be described as uniformly available throughout the ZIP.
Satellite broadband remains geographically relevant in 78219, although it is less competitive with the wired and fixed-wireless networks where those services are available. Satellite can still matter for a property that lacks a suitable terrestrial option or where installation of a wired service is impractical.
The current 78219 market supports a wide range of connection capacities. Current ZIP-level records show fiber as the fastest connection type for roughly 81% of homes in the dataset, while cable is the fastest type for about 18%. That makes technology more useful than a single ZIP-wide advertised speed when comparing providers.
Suitable for ordinary browsing, video calls, streaming and moderate household use when the connection is stable.
Useful for households with multiple simultaneous users, streaming devices, work applications and larger downloads.
Relevant for larger households and heavy local network use. Astound's current San Antonio service information advertises plans up to 1.5 Gbps.
AT&T and EarthLink are reported with fiber tiers reaching up to 5 Gbps in portions of 78219. The actual property must qualify for the corresponding fiber tier.
78219 has an unusually broad mix of connection technologies for an East San Antonio ZIP. Current records show fiber and cable as the principal wired options, while fixed wireless provides a large additional layer of competition.
Current ZIP-level records report AT&T and EarthLink fiber at about 80% coverage, with smaller Astound fiber availability. AT&T also specifically identifies Kirby and China Grove ZIP codes including 78219 with fiber service up to 5 GIG.
Spectrum has a nearly ZIP-wide cable footprint, while Astound Broadband cable covers about half of 78219 in current records. These overlapping networks create a meaningful wired comparison at some addresses.
Verizon and T-Mobile both have large reported fixed-wireless footprints, and Alamo Broadband adds a local wireless option. Wireless eligibility can vary by capacity, signal conditions and exact service location.
Satellite remains geographically available independently of the local fiber and cable plant. It can be relevant when terrestrial options are limited, but latency and equipment requirements differ from wired broadband.
ZIP 78219 is not a single type of San Antonio neighborhood. It includes portions of the East Side and the independent City of Kirby, with established residential areas, multifamily properties, commercial corridors and neighborhoods around major east-side transportation and employment routes. That mix helps explain why broadband networks overlap without matching one another exactly.
Older 78219 broadband listings often presented AT&T as a DSL provider with speeds around 50 Mbps or less. Current ZIP-level data now report AT&T fiber at approximately 80.5% of the ZIP, with fiber tiers reaching up to 5 Gbps in reported locations. This is the most important update for anyone using an older 78219 provider guide.
Current records report Spectrum cable coverage at approximately 99.3% of 78219. That makes Spectrum the most geographically consistent wired option in the ZIP according to the current dataset, although broad coverage does not mean every property receives the same plan, upload capacity or technology.
Astound Broadband is not merely a small secondary provider in 78219. Current records report cable coverage at about 48.6% and identify service across northeast, north, central, east and southwest portions of the ZIP. A smaller Astound fiber footprint is also reported.
Verizon fixed wireless is reported across roughly 90% of the ZIP, while T-Mobile Home Internet is reported across roughly 84%. Alamo Broadband also has a substantial reported footprint. These figures make fixed wireless a genuine competitor to wired service in 78219 rather than a technology category that matters only where cable and fiber are absent.
The ZIP is shared by San Antonio and the independent City of Kirby. AT&T specifically lists Kirby with ZIP 78219, 78244 and 78218. The ZIP therefore should not be treated as if it represented one municipality, one housing pattern or one infrastructure footprint.
Established residential areas, apartments and other multifamily properties can have different internal wiring and provider arrangements. A fiber or cable network reported on the surrounding streets does not automatically mean the same technology is wired into every building. This matters particularly when comparing older housing with newer infill or apartment properties.
These findings describe what the current evidence means for residents rather than simply repeating a provider list.
| Finding | Evidence | What it means for a 78219 address |
|---|---|---|
| AT&T fiber | Current ZIP-level data report about 80.5% fiber coverage; AT&T identifies Kirby and China Grove ZIP codes including 78219 with fiber up to 5 GIG | AT&T should be researched as a major fiber provider, not only as a legacy DSL network. |
| EarthLink fiber | Current ZIP-level data report approximately 80.5% fiber coverage and speeds reaching 5 Gbps | EarthLink may be a relevant retail fiber option where the underlying network supports it. |
| Spectrum cable | Current ZIP-level data report approximately 99.3% cable coverage | Spectrum is the broadest reported wired network in the ZIP, but exact service still needs address verification. |
| Astound cable | Current ZIP-level data report approximately 48.6% cable coverage | Some 78219 addresses may have a second cable network in addition to Spectrum and fiber options. |
| Astound fiber | Current ZIP-level records report a smaller fiber footprint of approximately 4.7% | Astound should not automatically be classified as cable at every address. |
| Verizon fixed wireless | Current ZIP-level data report approximately 89.9% coverage | Verizon is a meaningful alternative even where wired networks are present, but eligibility is address dependent. |
| T-Mobile Home Internet | Current ZIP-level data report approximately 84% fixed-wireless coverage | 5G Home Internet is a major local option rather than a niche fallback. |
| Alamo Broadband | Current 2026 datasets report substantial fixed-wireless availability | A local wireless provider can add an option that national-provider lists may miss. |
| Kirby / San Antonio boundary | ZIP 78219 is shared by San Antonio and the independent City of Kirby | ZIP-level geography does not identify the municipality or the infrastructure at a particular property. |
| North-versus-west variation | ZIP-level mapping research reports faster availability in northern portions and slower patterns in western portions | Local geography matters; ZIP-wide averages can conceal meaningful differences between properties. |
These locations help explain the geographic context of the ZIP. They are not substitutes for an address-level broadband check.
Neighboring ZIP codes can have different network footprints. Use them as separate research areas rather than transferring 78219 availability assumptions across ZIP boundaries.
Use ZIP-level research to identify the likely network choices, then verify the exact property with each provider before comparing plans.
FCC-derived datasets are useful for understanding which providers and technologies are reported in 78219. The FCC's National Broadband Map provides location-level information, including providers, technologies and reported speeds at an address. Provider address checkers remain the appropriate source for live ordering eligibility, current plans and current pricing.
The local network mix makes technology and upload performance important parts of the comparison. A large advertised download number does not describe the entire connection.
AT&T fiber and other fiber services can provide substantially higher upload capacity than traditional cable tiers. This matters for cloud backups, remote work, large file transfers and households that regularly send large amounts of data.
Current 78219 records show a nearly ZIP-wide Spectrum cable footprint and a roughly 49% Astound cable footprint. That overlap means some addresses may have more than one wired cable option, while others may have only one.
Established homes, apartments and newer infill can have different internal wiring and provider arrangements. The building's actual infrastructure can therefore be more informative than the ZIP-wide provider list.
ZIP-level research identifies the local market. Provider address tools determine what can actually be ordered at the property.
This page gives greater weight to official provider information for provider-specific service-area claims and uses current FCC Broadband Data Collection-derived datasets as the ZIP-level coverage layer.
Answers are based on current provider information and ZIP-specific broadband evidence reviewed for this guide.