Broadband in 77089 combines a strong Xfinity cable footprint with substantial AT&T fiber availability and widespread fixed-wireless alternatives from T-Mobile and Verizon. The ZIP covers the South Belt / Ellington area and includes established communities such as Sagemont, Sagemeadow, Sageglen, Kirkwood South and Scarsdale alongside newer developments such as Riverstone Ranch, Ashley Pointe and Clear Brook-area communities. That mix makes the exact property more important than the ZIP-wide provider list.
Enter a five-digit ZIP code to open the corresponding local broadband guide.
77089 is not simply a cable-only ZIP. Current evidence shows a strong combination of Xfinity cable, AT&T fiber and fixed-wireless networks. The ZIP also has a distinctive local geography: it sits in southeast Houston's South Belt / Ellington area, extends toward Pearland and the Clear Creek corridor, and contains subdivisions built across several different development periods.
AT&T's current Houston-area information lists Friendswood ZIP codes including 77089 and identifies fiber service up to 5 GIG. This is direct provider evidence that AT&T Fiber is present in the ZIP, although the ZIP also covers Houston-area communities outside Friendswood proper.
Current ZIP-level broadband datasets report Xfinity cable coverage at roughly 99% or more of 77089. That makes Xfinity the most consistently reported wired network in the ZIP, while AT&T provides the principal fiber comparison where its fiber network reaches the property.
The table separates provider evidence reported for the ZIP from address-level ordering information. Current secondary datasets based on FCC Broadband Data Collection records are useful for identifying the local market, but provider address checkers remain the appropriate source for live eligibility.
| Provider | Technology | 77089 evidence | Advertised maximum | Verify |
|---|---|---|---|---|
|
AT&T Fiber
ZIP specifically identified
|
Fiber | AT&T's current area information identifies Friendswood ZIP 77089 with fiber service up to 5 GIG. | Up to 5 Gbps where available | |
|
Xfinity
Major ZIP footprint
|
Cable; limited fiber reported | Current ZIP-level datasets report approximately 99% or greater Xfinity cable availability in 77089. A smaller Xfinity fiber footprint is also reported in some datasets. | Up to 2 Gbps in applicable locations | |
|
T-Mobile 5G Home Internet
Broad fixed-wireless evidence
|
5G fixed wireless | Current ZIP-level broadband records report T-Mobile fixed-wireless availability across most of 77089. Eligibility remains capacity and address dependent. | Up to roughly 498 Mbps in current market data | |
|
Verizon 5G Home Internet
Broad fixed-wireless evidence
|
Fixed wireless | Current ZIP-level datasets report Verizon fixed-wireless coverage across a substantial portion of 77089. Verizon's own service information requires an address check because 5G Home eligibility varies by location. | Plan and location dependent; up to 300 Mbps on current Houston 5G tiers | |
|
Frontier
Limited / conflicting evidence
|
Fiber / legacy DSL depending on location | Some current third-party property and ZIP-level sources list Frontier in 77089, but the current ZIP-level FCC-derived sources reviewed for this guide do not establish Frontier as a broad ZIP-wide footprint. It should therefore be treated as an address-specific possibility rather than a primary 77089 network. | Up to 7 Gbps where Frontier Fiber is actually available | Exact address and network footprint |
|
Satellite providers
Broad geographic option
|
Satellite | Satellite service is geographically available throughout 77089 and 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 focus on networks with current evidence tied specifically to 77089. The distinction between broad ZIP-level evidence and limited or conflicting provider records is intentional.
AT&T has unusually strong provider-specific evidence for 77089. Its current Houston-area area-code information places ZIP 77089 in the Friendswood grouping and identifies fiber service up to 5 GIG. Because 77089 crosses municipal and community contexts, that should be read as proof of fiber presence in the ZIP rather than a statement that every Sagemont, Riverstone Ranch or South Belt address receives the same tier.
Xfinity is the most consistently reported wired network in current 77089 ZIP-level datasets. One current FCC-derived dataset reports about 99.9% cable availability, while another current ZIP provider source reports 98.8% overall availability. The exact percentage differs by methodology, but both point to the same local conclusion: Xfinity has a very broad cable footprint across 77089.
T-Mobile Home Internet is a meaningful part of the 77089 broadband market rather than a fringe fallback. Current FCC-derived ZIP data report fixed-wireless availability across roughly 99% of the ZIP in one current dataset. That figure describes reported serviceability, not guaranteed ordering eligibility, because T-Mobile manages Home Internet capacity by service location.
Verizon is another substantial fixed-wireless competitor in 77089. Current ZIP-level records report approximately 98.7% Verizon fixed wireless coverage in one current dataset. Verizon's own Houston information emphasizes that 5G Home service varies by address and that not every location with 5G cellular service automatically qualifies for Home Internet.
Frontier requires a more cautious treatment in 77089. Current third-party property sources list Frontier at some 77089 addresses and some provider directories advertise Frontier Fiber in the ZIP, but the current FCC-derived ZIP datasets reviewed for this guide do not establish a broad Frontier footprint comparable to Xfinity or AT&T. It is therefore included as a provider to verify at qualifying addresses, not as a ZIP-wide assumption.
Satellite broadband remains geographically relevant throughout 77089. It does not depend on the neighborhood cable or fiber plant and can therefore be considered independently of the local wired competition. Starlink, Viasat and Hughesnet are examples of satellite networks relevant to the Houston market, although their plans and performance characteristics differ substantially.
The local market ranges from fixed-wireless plans to multi-gigabit fiber and cable. The useful comparison depends on the technology reaching the property, not simply the largest number advertised anywhere in the ZIP.
Suitable for ordinary browsing, video calls, streaming and moderate household use when the connection remains stable.
Useful for households with several simultaneous users, multiple streaming devices and larger downloads.
Relevant to larger households and heavy local network use when multi-gigabit cable or fiber service is actually available.
AT&T currently advertises up to 5 Gbps in the 77089 market where its fiber network reaches the property.
77089 has an unusually useful mix of established wired infrastructure and newer fiber and wireless alternatives. The differences are especially relevant because the ZIP contains both older subdivisions and newer residential developments.
AT&T specifically identifies 77089 with fiber service up to 5 GIG. Current datasets also report a small amount of fiber under the Xfinity brand. The practical question is whether fiber reaches the individual property rather than simply appearing in the ZIP record.
Xfinity has the strongest cable evidence in 77089, with current ZIP-level records showing coverage near the full ZIP. Cable can provide high download speeds, but upload capacity generally needs separate consideration when comparing it with fiber.
T-Mobile and Verizon are meaningful local alternatives. Current ZIP-level data report extensive fixed-wireless footprints, but home eligibility depends on network capacity and the precise service address.
Satellite broadband is geographically available throughout the ZIP and does not depend on the same neighborhood fiber or cable plant. It is technically different because latency, equipment and network conditions can affect the experience.
77089 sits in southeast Houston's South Belt / Ellington area and has connections to several distinct development patterns. The ZIP includes older postwar subdivisions, later planned neighborhoods, townhome and multifamily pockets, and newer communities closer to Clear Creek and Pearland. Those differences are relevant to broadband because network infrastructure was not necessarily installed at the same time or under the same development model.
AT&T's current Houston-area information specifically lists 77089 under its Friendswood grouping and identifies fiber service up to 5 GIG. This matters because the provider can be evaluated as a fiber competitor in this ZIP rather than simply as a legacy telephone network. The listing does not prove every property is fiber-ready.
Current ZIP-level datasets report Xfinity cable availability at approximately 99% or higher. The exact percentage varies between datasets, but the evidence consistently identifies Xfinity as the dominant broad wired footprint in 77089. This makes the local comparison fundamentally different from ZIPs where a cable provider has only partial coverage.
Sagemont, Beverly Hills, Kirkwood and Scarsdale contain housing dating largely from the 1960s and 1970s, while Riverstone Ranch, Ashley Pointe, Preserve at Highland Glen and other communities contain substantially newer construction. This creates a real infrastructure distinction: the age and development pattern of a property can affect how providers reach the building and what internal wiring is present.
The City of Houston identifies South Belt / Ellington around the Beltway 8 and Gulf Freeway intersection, with Ellington Field at the eastern edge. The completion of Beltway 8 helped stimulate residential and commercial development in the area. For broadband research, this helps explain why the ZIP contains multiple generations of development rather than one uniform residential network footprint.
ZIP 77089 is associated with the South Belt / Ellington area but also touches the broader Friendswood and Pearland market. Provider marketing pages can therefore classify the same ZIP differently depending on which local market they use. A Houston mailing address, a Friendswood service-area label and a Pearland-adjacent subdivision are not interchangeable evidence of network availability.
Current FCC-derived datasets report T-Mobile fixed wireless at roughly 98.8% and Verizon fixed wireless at roughly 98.7% in 77089. These figures make 5G Home Internet worth checking even when a wired provider is already available. They should not be interpreted as guaranteed service because wireless capacity and address eligibility can change.
Riverstone Ranch At Clear Creek, Ashley Pointe, Preserve at Highland Glen and other newer developments appear alongside established neighborhoods such as Sagemont and Sagemeadow. Newer construction can have different conduit, fiber placement and internal wiring. A provider result for an older nearby home is therefore not a reliable proxy for a newer development.
These findings describe what the current evidence means for residents rather than simply repeating a provider directory.
| Finding | Evidence | What it means for a 77089 address |
|---|---|---|
| AT&T Fiber | AT&T specifically lists 77089 with fiber service up to 5 GIG | AT&T should be checked as a fiber competitor rather than treated only as a legacy DSL provider. |
| Xfinity cable | Current ZIP-level datasets report approximately 99% or greater cable coverage | Xfinity is the most consistently reported broad wired option in the ZIP. |
| Xfinity fiber | Some current ZIP datasets report a smaller Xfinity fiber footprint | The Xfinity brand alone does not establish the technology at an individual address. |
| T-Mobile Home Internet | Current FCC-derived records report approximately 98.8% fixed-wireless availability | 5G Home Internet is a meaningful local alternative, but live capacity and address eligibility still matter. |
| Verizon 5G Home | Current ZIP-level records report approximately 98.7% fixed-wireless availability | Verizon should be checked independently rather than treating all fixed-wireless services as interchangeable. |
| Frontier | Some property-level sources report Frontier, while current ZIP-level datasets provide weaker evidence of a broad footprint | Frontier should be treated as an address-specific possibility until the provider confirms service. |
| Older subdivisions | Sagemont, Beverly Hills, Kirkwood South, Scarsdale and Sagemeadow largely date from the 1960s–1970s | Existing neighborhood infrastructure can differ from that installed in newer developments. |
| Newer development | Riverstone Ranch, Ashley Pointe, Preserve at Highland Glen and other communities include newer construction | Newer subdivision infrastructure should be checked separately from older nearby streets. |
| South Belt / Ellington geography | 77089 sits in a corridor shaped by Beltway 8, I-45 and Ellington-area development | The ZIP contains multiple development patterns rather than one uniform residential network. |
These communities help explain why broadband infrastructure can differ within the ZIP. They are geographic reference points, not substitutes for an address-level availability check.
Adjacent ZIP codes can have different network footprints. Use them as separate research areas rather than transferring 77089 availability assumptions across ZIP boundaries.
The correct sequence is to use ZIP-level research to identify the relevant network choices, then verify the exact property with each provider before comparing plans.
FCC-derived datasets are useful for understanding the broadband market around 77089. They show which providers and technologies are reported in the ZIP, but they are not live ordering systems. Provider address checkers remain the appropriate source for current eligibility, plan availability, installation requirements and pricing.
The local network mix makes technology, upload capacity and property-level availability more useful comparison points than a single advertised download number.
Where AT&T Fiber is available, its fiber architecture can provide much stronger upload performance than conventional cable. That can matter for remote work, cloud backups, large file transfers and homes with substantial upstream traffic.
The ZIP-wide evidence points to a strong Xfinity cable footprint and meaningful AT&T fiber availability. The most useful comparison is therefore often the actual two-network choice at the property, not the overall provider list for Houston.
A 1970s Sagemont or Sagemeadow home and a newer Riverstone Ranch or Ashley Pointe property were built under very different development conditions. Internal wiring and provider infrastructure should be verified independently for each property.
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 a secondary ZIP-level coverage layer.
Answers are based on the current provider information and ZIP-specific broadband evidence reviewed for this guide.