Internet service in 94117 combines a very broad Xfinity cable footprint with fiber competition from Sonic and AT&T at selected addresses. Astound Broadband and fixed-wireless providers add additional options, while satellite remains geographically available throughout the ZIP. The provider mix is particularly relevant in 94117 because the ZIP includes older Victorian and Edwardian housing, multifamily buildings and neighborhoods with different street and building configurations.
Enter a five-digit ZIP code to open the corresponding local broadband guide.
94117 is a useful example of why a ZIP-level provider list and a current network map are not always the same thing. Current ZIP-level sources show Xfinity as the dominant cable provider, while Sonic now describes a wholly owned 10-Gigabit fiber network serving San Francisco. AT&T also confirms fiber service in parts of San Francisco. Older secondary ZIP datasets can therefore understate the practical fiber choices available at some addresses.
Current 94117 provider data reports Xfinity cable coverage at roughly 100% of the ZIP. That makes cable the most consistently documented wired network in the ZIP, although a ZIP-wide percentage does not establish service inside every building or unit.
Sonic currently describes a wholly owned 10-Gigabit fiber network in San Francisco. This is important when interpreting older 94117 datasets that list Sonic primarily as DSL. A historical ZIP table should not be treated as a current description of Sonic's entire San Francisco network.
94117 includes Victorian and Edwardian houses, flats, condominiums, cooperative properties and other multifamily buildings. The network outside a property is only part of the serviceability question; building wiring and the exact service address can affect the available options.
The table separates current provider and network evidence from older ZIP-level coverage records. Where a secondary dataset conflicts with current provider information, the difference is identified instead of presenting the older figure as a current address-level fact.
| Provider | Technology | 94117 evidence | Advertised maximum | What to verify |
|---|---|---|---|---|
|
Xfinity
Broad ZIP footprint
|
Cable | Current ZIP-level provider data reports approximately 100% Xfinity availability in 94117. The same provider source reports cable as Xfinity's primary local technology. | Up to 2 Gbps in current reported offerings | Exact address, plan tier, upload speed and equipment terms |
|
Sonic
San Francisco fiber network
|
Fiber | Sonic currently describes its San Francisco service as a wholly owned 10-Gigabit fiber network. Older ZIP-level data can show Sonic under DSL classifications, so historical ZIP tables should not be treated as a current map of Sonic's fiber deployment. | Up to 10 Gbps | Exact address, current construction/service status and plan |
|
AT&T Fiber
Partial SF fiber footprint
|
Fiber | AT&T currently states that AT&T Fiber is available in parts of San Francisco and requires an address check. Current ZIP-level provider data also identifies AT&T service in 94117. | Up to 5 Gbps where available | Whether the exact property receives fiber and which tier |
|
Astound Broadband
Smaller local footprint
|
Cable | Astound appears in 94117 ZIP-level provider data, but its reported footprint is substantially smaller than Xfinity's. Astound's current service checker requires the street address and ZIP code because service varies by location. | Provider and location dependent | Whether the exact building is within the Astound network |
|
T-Mobile Home Internet
5G / fixed wireless
|
5G fixed wireless | T-Mobile provides 5G home internet in the San Francisco market. Wireless availability is not equivalent to cable coverage because eligibility can depend on address, network capacity and radio conditions. | Up to about 498 Mbps in current reported San Francisco data | Address eligibility, capacity and signal conditions |
|
Verizon 5G Home Internet
Limited wireless option
|
Fixed wireless | Verizon 5G Home Internet is part of the San Francisco residential broadband market, but wireless eligibility is address-specific and can vary significantly between nearby properties. | Plan and location dependent | Exact address and current 5G Home eligibility |
|
Other fixed-wireless providers
Specialized footprints
|
Fixed wireless | Secondary San Francisco broadband datasets identify providers such as Etheric Networks, Unwired and XNET. Their footprints are not comparable to Xfinity's ZIP-wide cable presence and require direct serviceability checks. | Provider and location dependent | Exact address, radio path and current network footprint |
|
Satellite providers
Geographic option
|
Satellite | Starlink, HughesNet and Viasat are geographically available in the San Francisco market and do not rely on the same neighborhood cable or fiber plant as wired providers. | Provider and plan dependent | Equipment location, sky visibility, latency and plan terms |
The provider descriptions below emphasize what can be established about 94117 and San Francisco without converting a ZIP-level provider record into a guarantee for every property.
Xfinity is the most consistently documented wired provider in 94117. Current ZIP-level provider information reports approximately 100% availability for Xfinity cable. That makes Xfinity the clearest baseline for understanding the ZIP's existing wired infrastructure. It does not, however, mean every unit has identical service tiers, upload performance or building wiring.
Sonic requires special treatment in a 94117 research page because current company information and older ZIP-level datasets can tell different stories. Sonic currently describes its San Francisco network as a 100% wholly owned 10-Gigabit fiber network and provides an address checker for residential service. Older ZIP provider tables may still classify Sonic primarily as DSL, which should not be presented as the current state of Sonic's San Francisco network.
AT&T is another fiber network that should be checked independently in 94117. AT&T's current San Francisco fiber page explicitly states that AT&T Fiber is available in parts of San Francisco and lists speeds up to 5 Gbps where available. Current ZIP-level data also identifies AT&T service in 94117, but ZIP-level records do not establish which AT&T technology reaches an individual property.
Astound Broadband appears in ZIP-level provider information for 94117, but it is not documented as broadly as Xfinity. Astound's own current availability system emphasizes that service varies by location and requires the street address and ZIP code. For 94117, Astound is best treated as a property-specific second wired network rather than a universal ZIP-wide option.
T-Mobile Home Internet provides a wireless alternative to the wired networks in 94117. Unlike cable or fiber, fixed-wireless eligibility can depend on the capacity available at a particular cellular site, the service address and local radio conditions. A neighboring address therefore does not necessarily produce the same eligibility result.
Verizon 5G Home Internet is another wireless option to check separately from the cable and fiber networks. Its relevance in 94117 depends on the current Verizon wireless network configuration and address-level eligibility rather than on the existence of Verizon cellular coverage alone.
The appropriate speed depends on household use, but the physical network matters as much as the headline download number. In 94117, a comparison between Xfinity cable and available fiber service can involve meaningful differences in upload capacity, latency and network architecture.
A practical range 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 larger households, large downloads and homes with many active devices, provided the property and equipment support the tier.
Available only where qualifying fiber networks reach the property and the home's gateway, Ethernet equipment and Wi-Fi infrastructure can make practical use of the additional capacity.
94117 has a broad cable baseline, current fiber competition and property-dependent wireless alternatives. The technologies do not follow the ZIP boundary in the same way, and current provider information can move faster than secondary ZIP-level datasets.
Sonic currently describes a wholly owned 10-Gigabit fiber network in San Francisco. AT&T also confirms fiber availability in parts of the city, with speeds up to 5 Gbps where available. The important question for 94117 is whether the network reaches the specific property and whether the building can receive the advertised service.
Xfinity is the most broadly documented wired network in 94117, with current ZIP-level data reporting approximately 100% availability. Astound appears as a smaller cable alternative. Cable availability therefore forms the baseline against which fiber and wireless options should be compared.
T-Mobile and Verizon provide wireless home-internet alternatives in the San Francisco market. Their eligibility is different from cable and fiber coverage because network capacity, radio conditions and the exact service address can affect whether a home qualifies.
Starlink, HughesNet and Viasat provide geographically broad satellite options in the San Francisco market. Satellite does not depend on the same neighborhood cable or fiber infrastructure, although latency, equipment placement and service-plan characteristics differ from wired connections.
94117 is centered on Haight-Ashbury and adjacent central San Francisco residential areas, including Buena Vista, Ashbury Heights and Cole Valley. Its physical housing stock and neighborhood layout make building-level verification particularly relevant to broadband research.
ZIP 94117 covers a small area but crosses several recognizable neighborhoods and residential environments. Haight-Ashbury, Cole Valley and Buena Vista/Ashbury Heights do not have identical building patterns. A ZIP-wide provider list therefore describes the market rather than the infrastructure at one street address.
Current ZIP-level provider data reports approximately 100% Xfinity availability in 94117. That makes cable the most consistently documented wired option in the ZIP and gives residents a useful baseline when checking whether fiber or another network is available at the same address.
A particularly important research issue in 94117 is the difference between older provider tables and current Sonic information. Historical ZIP data can list Sonic under DSL classifications, while Sonic's current San Francisco page describes a wholly owned 10-Gigabit fiber network. This means a historical percentage should not be used as a current description of Sonic's network without checking the provider directly.
AT&T currently states that fiber is available in parts of San Francisco and lists speeds up to 5 Gbps where available. The presence of AT&T in ZIP-level data does not prove that a specific 94117 building receives fiber, but it makes AT&T an important independent address check rather than assuming Sonic is the only fiber network to investigate.
Cole Valley and surrounding parts of 94117 include Victorian and Edwardian homes, flats and condominium or cooperative properties. Many buildings have been renovated or converted over time. For broadband service, the network on the street is only one part of the installation: the building entry point, internal wiring, unit configuration and existing telecom infrastructure can also affect what can be delivered.
Haight Street, Golden Gate Park, the Panhandle, Buena Vista Park, Tank Hill and the streets around Cole Valley create recognizable geographic reference points, but provider networks do not necessarily stop or begin at those neighborhood boundaries. Two nearby properties can therefore produce different provider and technology results even when they are in the same neighborhood.
These findings separate current provider evidence from older ZIP-level records and explain what each type of evidence can actually establish.
| Finding | Evidence | What it means for a 94117 address |
|---|---|---|
| Xfinity cable | Current ZIP-level provider data reports approximately 100% availability in 94117 | Xfinity is the clearest broadly documented wired baseline, but the exact building should still be checked. |
| Sonic fiber | Sonic currently describes a wholly owned 10-Gigabit fiber network in San Francisco | Current Sonic information should be checked directly rather than relying on older ZIP tables that may classify Sonic as DSL. |
| AT&T Fiber | AT&T confirms fiber in parts of San Francisco and lists up to 5 Gbps where available | AT&T should be checked independently because AT&T fiber is not established as universal throughout 94117. |
| Astound Broadband | Astound appears in ZIP-level provider data and requires address-level service verification | Astound may provide another wired option for selected properties, but its footprint is substantially smaller than Xfinity's. |
| T-Mobile 5G | T-Mobile provides 5G home internet in the San Francisco market | Eligibility should be checked independently because wireless capacity and signal conditions can vary by address. |
| Verizon 5G | Verizon 5G Home Internet is part of the San Francisco residential market | General Verizon mobile coverage should not be treated as proof that a property qualifies for 5G Home Internet. |
The neighborhood references below are useful because housing type and building configuration can influence the practical broadband installation. They are geographic context, not provider-availability guarantees.
Adjacent ZIP codes can have different provider footprints and network construction histories. Treat each ZIP as a separate research area.
The most reliable process is to use ZIP-level research to identify the networks worth checking and then use each provider's current address checker for the final serviceability result.
Secondary broadband datasets remain useful for understanding the historical provider landscape, but they can lag behind network construction. The 94117 example is particularly important because older data can classify Sonic as DSL while Sonic's current San Francisco information describes a wholly owned 10-Gigabit fiber network. Current provider address checkers should therefore take precedence when the two sources conflict.
94117 offers a useful comparison between cable, current fiber networks and fixed wireless. The physical connection and building conditions should be evaluated before focusing on the largest advertised download number.
Current Sonic and AT&T fiber offerings can provide symmetric upload and download performance where fiber is available. Cable plans can have substantially lower upload capacity. That difference matters for cloud backups, large file transfers, remote work and other upload-heavy uses.
A provider may identify a building as serviceable while the installation still depends on existing conduits, telecom rooms, risers or internal wiring. This is particularly relevant in converted Victorian and Edwardian properties and multifamily buildings.
Secondary ZIP datasets can become outdated as networks are expanded. For 94117, current Sonic and AT&T information demonstrates why a historical provider table should be treated as supporting evidence rather than the final word on current fiber availability.
ZIP-level research identifies the local broadband market. Provider address tools determine what can actually be ordered at the property.
This page gives greater weight to current official provider information when describing present-day networks and uses ZIP-level broadband data as a secondary research layer. Conflicts between current provider information and older ZIP datasets are identified rather than hidden.
Answers below distinguish current provider evidence from ZIP-level coverage information and historical broadband datasets.