Broadband options in 78748 include fiber, cable and fixed-wireless service, but the provider mix is not uniform across the ZIP. This guide focuses on what current provider records and ZIP-level broadband data actually show for southeast Austin.
Enter a five-digit ZIP code to open the corresponding local broadband guide.
78748 is not a single-network ZIP code. Current evidence points to a competitive southeast Austin market where fiber, cable and fixed wireless overlap, with satellite available as a location-independent alternative.
AT&T explicitly lists 78748 in its Austin-area fiber ZIP information. Google Fiber is also building and expanding across Austin, including Southeast Austin, and ZIP-level FCC-derived datasets report Google Fiber service in 78748.
Spectrum has an operating location in Southpark Meadows at 9600 S IH 35 in ZIP 78748, while Spectrum's Austin service page identifies Austin as part of its residential service area. The retail location confirms a local Spectrum presence; residential eligibility still requires an address check.
T-Mobile has a Home Internet-enabled location at 9300 S Interstate 35 in 78748. T-Mobile's Austin Home Internet information confirms 5G home internet service in the city, while its eligibility rules make clear that capacity and signal conditions determine individual addresses.
This table separates directly documented local evidence from ZIP-level broadband datasets. A provider appearing in a ZIP-level dataset should not be interpreted as proof that every address can order that service.
| Provider | Technology | 78748 evidence | Advertised maximum | What to verify |
|---|---|---|---|---|
|
AT&T Fiber
ZIP specifically identified
|
Fiber | AT&T's Austin-area service information explicitly includes 78748 among ZIPs associated with fiber service. | Up to 5 Gbps where available | Exact address, fiber tier, installation requirements |
|
Google Fiber
Austin network
|
Fiber | Google Fiber identifies Southeast Austin within its Austin expansion footprint. ZIP-level FCC-derived datasets also report GFiber in 78748. | Up to 8 Gbps in current Austin offerings | Exact address and current build status |
|
Spectrum
Local ZIP presence
|
Cable; limited fiber footprint | Spectrum operates a location at 9600 S IH 35, Austin, TX 78748, and identifies Austin as a service area. | Up to 2 Gbps in select markets | Residential service, plan tier, upload speed |
|
T-Mobile 5G Home Internet
Local ZIP presence
|
5G fixed wireless | T-Mobile operates a Home Internet-enabled location at 9300 S I-35 in 78748. Austin is listed as a T-Mobile 5G Home Internet market. | Plan-dependent; wireless speeds vary | Address eligibility, signal and network capacity |
|
Verizon 5G Home Internet
FCC-derived ZIP evidence
|
Fixed wireless | FCC-derived ZIP-level datasets report Verizon fixed wireless service in 78748. This is a network-coverage indication rather than a guarantee for every residential address. | Plan and location dependent | Exact address and 5G Ultra Wideband availability |
|
Astound Broadband
Limited ZIP footprint
|
Fiber / cable | FCC-derived secondary datasets identify a small Astound footprint in 78748. Because the reported footprint is limited, address-level verification is especially important. | Up to multi-gig in applicable markets | Whether the individual property is inside the local footprint |
|
Satellite providers
Broad geographic option
|
Satellite | Satellite networks do not depend on the same neighborhood cable or fiber plant as wired providers, making them relevant when a property lacks a suitable wired connection. | Provider and plan dependent | Clear sky view, latency, equipment and plan terms |
The provider descriptions below focus on what is documented for 78748 or the immediate Austin market rather than treating citywide availability as universal ZIP coverage.
AT&T provides one of the clearest ZIP-specific fiber signals for 78748. Its Austin-area service page specifically lists 78748 among the ZIP codes associated with AT&T Fiber, and AT&T's current network information advertises fiber tiers up to 5 Gbps where available.
Google Fiber has operated in Austin for more than a decade and is continuing to expand its fiber network. Its current Texas information specifically includes Southeast Austin within the Austin service footprint. A ZIP-level FCC-derived dataset also reports Google Fiber in 78748.
Spectrum has a particularly visible local presence in 78748. Its Southpark Meadows location at 9600 S IH 35, Suite 600, is inside the ZIP and supports Spectrum Internet service activities. Spectrum also lists Austin as a residential service area.
T-Mobile's presence in 78748 is unusually easy to document because the company operates a store at 9300 S Interstate 35 and explicitly lists T-Mobile Home Internet among the services available there.
FCC-derived broadband datasets report Verizon fixed wireless service in 78748. That makes Verizon relevant when comparing wireless alternatives to the wired networks in the ZIP, but it does not mean every 78748 address has access to Verizon 5G Home Internet.
Astound appears in ZIP-level FCC-derived broadband records for 78748, but its reported footprint is much smaller than the major cable and fiber networks. It is therefore more useful to treat Astound as a property-specific possibility than as a ZIP-wide provider.
The useful speed tier depends on household activity, but the network technology matters too. A 1 Gbps cable plan and a 1 Gbps fiber plan should not automatically be treated as equivalent because upload capacity, latency and local network architecture can differ.
Suitable for ordinary browsing, video calls, streaming and smaller households when the connection is stable.
Useful for households with several simultaneous users, multiple streaming devices and heavier downloads.
More relevant for large households, substantial downloads or homes with many simultaneously active devices.
Available only where the local fiber network and property support the relevant tier. Hardware can become the limiting factor.
The ZIP has a broader technology mix than a simple "fiber versus cable" comparison suggests.
AT&T Fiber and Google Fiber are the most important fiber networks to investigate. Fiber can provide high upload capacity and low latency, but the fiber plant must reach the individual property.
Spectrum is a major wired option in the 78748 market. Cable can provide high download speeds, but upload performance may differ substantially from fiber.
T-Mobile and Verizon provide alternatives that do not require a dedicated fiber or cable line to the home. Eligibility depends on wireless network conditions.
Satellite remains a geographic fallback when wired or terrestrial fixed-wireless options are unsuitable. Latency and weather sensitivity make it materially different from fiber or cable.
78748 sits in southeast Austin along the I-35 and South Congress/ Slaughter-area growth corridor. That matters because the ZIP combines established residential areas with newer development and major commercial districts, producing a broadband market where network footprints can overlap without being identical at every address.
AT&T's current Austin-area service information lists 78748 alongside other nearby ZIP codes such as 78745, 78749 and 78652 in its fiber service-area information. This is stronger evidence than simply saying "AT&T serves Austin," although it still does not establish service at every property.
The Southpark Meadows area contains a Spectrum location at 9600 S IH 35 in 78748. T-Mobile also operates a Home Internet-enabled location at 9300 S Interstate 35. These locations do not prove residential coverage by themselves, but they establish that both providers have an active operational presence inside the ZIP.
Google Fiber's current Austin information identifies Southeast Austin as part of its Austin network area and says the company is continuing to add addresses. This is important for 78748 because a static provider list can become outdated as fiber construction reaches additional properties.
T-Mobile's own eligibility documentation says two nearby addresses can have different results because network capacity, signal strength, building materials and multi-dwelling-unit restrictions can affect eligibility. That makes 5G availability fundamentally different from a simple ZIP-wide coverage percentage.
78748 borders several other Austin-area ZIPs, including 78745, 78747 and 78749. Provider networks cross those boundaries, while individual fiber builds, cable plant and wireless cells do not necessarily cover every adjacent neighborhood in the same way.
These findings are more useful than a generic provider list because they explain how the evidence should be interpreted inside the ZIP.
| Finding | Evidence | What it means for a 78748 address |
|---|---|---|
| AT&T fiber | AT&T's Austin ZIP listing explicitly includes 78748 | Fiber should be checked before assuming AT&T is only a legacy wired option. |
| Google Fiber | Google Fiber identifies Southeast Austin as an Austin network area; FCC-derived ZIP data reports 78748 | Some properties may have access to a competing fiber network rather than only cable. |
| Spectrum | Official Spectrum location at 9600 S IH 35, Austin, TX 78748 | Spectrum is a directly documented local provider presence and should be included in address comparisons. |
| T-Mobile Home Internet | Official T-Mobile 78748 location lists Home Internet | 5G home internet is a local alternative, but eligibility is capacity and signal dependent. |
| Verizon 5G | FCC-derived ZIP-level fixed-wireless records | Worth checking independently, but ZIP data should not be treated as live eligibility. |
| Astound | Small ZIP-level footprint in FCC-derived datasets | Potentially relevant for particular properties rather than a ZIP-wide default. |
Broadband infrastructure is tied to streets, buildings and development phases rather than ZIP boundaries. The following locations are useful geographic reference points for interpreting the 78748 market, not guarantees of provider availability.
Adjacent ZIP codes can have different provider footprints. Use them as separate research areas rather than assuming a neighboring ZIP has the same availability as 78748.
The correct sequence is to identify the local network first, then use the provider's own address checker before relying on advertised speeds or pricing.
FCC-derived datasets are valuable for understanding which providers report service in a ZIP and which technologies are present. They are not live ordering systems. Provider address checkers should take precedence when deciding whether a specific home can actually order service.
The local provider market makes a technology-first comparison more useful than choosing strictly by the highest advertised download speed.
A fiber plan may have much stronger upload capacity than a cable plan with a similar advertised download speed. This can matter for large file transfers, cloud backups and households sending substantial data.
T-Mobile and Verizon eligibility can depend on local capacity and wireless conditions. A neighboring home qualifying for 5G Home Internet does not establish that another home will qualify.
For newer subdivisions and apartment properties, ask whether the advertised provider is physically connected to the building and whether the unit's wiring supports the plan being advertised.
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 current service-area and plan claims, while using FCC-derived datasets as a secondary ZIP-level coverage layer.
Answers are based on the provider records and ZIP-specific evidence reviewed for this guide.