Spectrum
CableFCC records report this provider in the sampled area near ZIP 78221. Enter your address to confirm service, plans, and current pricing.
San Antonio, TX
Internet Providers in 78221
Spectrum has reported coverage near ZIP 78221. Confirm your address before ordering online.
Check Spectrum AvailabilityCompiled by the InternetProviders.ai research desk from FCC broadband filings and our coverage database; last checked October 20, 2026.
FCC data as of June 20252 providers reported
Review 2 providers with reported coverage near ZIP code 78221, then enter your street address to confirm service and plan details.
Quick Answer
2 internet providers have FCC-reported coverage near ZIP code 78221 in San Antonio, TX. Reported providers include Spectrum, AT&T Internet. Enter your address above, then confirm service, plans, and pricing before ordering.
Providers with Reported Coverage in 78221
AT&T Internet
FiberFCC records report this provider in the sampled area near ZIP 78221. Enter your address to confirm service, plans, and current pricing.
Coverage data from FCC Broadband Data Collection. Actual availability may vary by exact address.
Other services to check at your address
T-Mobile, Starlink, and other address-qualified services are not counted as locally reported providers for ZIP 78221. Availability varies by address — confirm eligibility before ordering.
ZIP 78221 Internet at a Glance
- Reported technology mix: 1 fiber, 1 cable, 1 DSL, 0 5G/wireless (a provider reporting more than one technology is counted in each)
- Fiber evidence: found in the sampled area; confirm availability at your address
- Sample coverage: 14/19 sampled grid cells contained admitted FCC records
2
Providers reported
FCC BDC
Coverage source
Required
Address confirmation
ZIP code 78221 is located in San Antonio, TX (population 1,434,625). 2 internet providers have reported coverage signals in the sampled area, including 1 provider with reported fiber infrastructure. For full city-wide coverage details, see our San Antonio internet providers page.
Coverage by Technology in 78221
1
Fiber Provider
50% of options
1
Cable Provider
50% of options
1
DSL Provider
50% of options
Percentages can add up to more than 100%: a provider reporting more than one technology is counted in each.
Coverage in Your Area (78221)
Based on sampled FCC broadband records around ZIP code 78221. These figures describe the sample, not every address in the ZIP.
Sampled Cells with Records
74%
14 of 19 sampled grid cells contained admitted records
Reported Max Download
8 Gbps
across all filers in the sampled infrastructure data
Reported Max Upload
8 Gbps
across all filers in the sampled infrastructure data
Low-Latency Flag
Reported
present in sampled FCC records
Counted providers with reported infrastructure near 78221:
AT&T Internet (Fiber)Spectrum (Cable)AT&T Internet (DSL)
Other filers in the sampled FCC records near 78221:
Not included in the provider total above because they are not matched to a provider listed here. Availability at your address is not confirmed.
Hotwire Communications (Fiber)Spectrum (Fiber)UPN (Fiber)
Source: FCC Broadband Data Collection, H3 hex-level analysis, June 2025
Key Findings
- 2 internet providers have FCC-reported coverage near ZIP code 78221
- Reported fiber infrastructure (1 provider): AT&T Internet
- FCC records found in 74% of sampled H3 grid cells
- Exact service, plan eligibility, speeds, and pricing require an address check
Compare Providers in Your Area
Order by Phone
Call to order service or check availability at your address in 78221
Spectrum, labeled Cable, and AT&T Internet, labeled Fiber, show up for the sampled area near 78221 in the FCC's June 2025 Broadband Data Collection records. An area listing does not settle service at any single home. Most housing units in ZCTA 78221 are single-family detached homes, and for a house the check is simple: enter the address as it reads on your mail, with any unit number, in Spectrum's lookup and again in AT&T Internet's.
| Measure | ZCTA 78221 | Texas |
|---|---|---|
| Households with any internet subscription | 85% | 91% |
| Households with cable, fiber or DSL service | 68% | 74% |
| Households with only a cellular data plan | 14% | 13% |
| Households with no internet access | 12% | 6% |
| Renter-occupied homes | 30% | 37% |
| Homes in buildings with 20 or more units | 4% | 11% |
| Mobile homes | 4% | 6% |
| Homes built before 1960 | 28% | 12% |
| Homes built in 2010 or later | 20% | 21% |
| Workers who usually work from home | 5% | 14% |
Going without home internet in ZCTA 78221
Of households in ZCTA 78221, 12% reported no internet access, a higher share than Texas shows. For a household setting up its first home connection, or one that has relied on phone data, a few questions make the order clearer:
- What will be installed at the address, and where will the equipment sit?
- Is a modem or router part of the order?
- What should be ready in the home on installation day?
Each call, to Spectrum and to AT&T Internet, can follow that list from top to bottom.
Older houses in 78221
Housing in ZCTA 78221 skews older than in Texas: the median construction year is 1974, and 28% of housing units were built before 1960. If your house is among those older homes, ask Spectrum and AT&T Internet which outside wall the service would come through and whether exterior or indoor cabling work is part of the install. Settle on a router spot near the rooms the household uses most before booking.
Nearby ZCTA 78210 has a much larger share of housing units built before 1960 than ZCTA 78221.
For a citywide starting point there is San Antonio internet providers; compare internet providers is another place to begin.
Home connection questions from ZCTA 78221
My household has never had home internet in 78221. Where do I start?
Start with the exact address in Spectrum's and AT&T Internet's lookups. Then call with a list of the phones, laptops and other devices the household would connect, and ask whether a technician would come out.
My 78221 house dates from before 1960. What should I mention when ordering?
Give the house's age along with the address. Ask which outside wall the service would come through and whether any exterior or interior work is planned, and have a router spot chosen before the visit.
Can the new connection be tested before the 78221 installer leaves?
Ask when you order whether the technician will check the connection on your own phone and laptop before leaving. Have those devices charged and close by on the day.
Site editorial standards: George Olfson. Data methodology: Pablo Mendoza. Read our methodology or report a correction.
How We Rank Providers & Where the Data Comes From
Provider names and sampled advertised technology and speed evidence on this page come from the FCC National Broadband Map and the FCC Broadband Data Collection (June 2025), sampled at H3 grid-cell granularity. ZIP results are shortlist evidence, not address-level serviceability. National catalog plans are excluded until market eligibility is proven. Confirm service, the current offer, and installation terms at the exact address. See our full ranking methodology.
See All Providers in San Antonio
View detailed coverage, provider comparisons, and more options for the San Antonio, TX area.
Sources & Methodology
This guide is based on data from FCC broadband filings and provider plan details. Pricing, speeds, and availability vary by location, so confirm them with the provider before ordering. For a detailed explanation of our data collection and scoring process, see our methodology page.
Data Sources
Last verified: October 2026. InternetProviders.ai is an independent resource. We may earn commissions from partner links. Commissions never change a provider's rating or the plan facts we list. See our methodology for details.
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