Internet providers in Altadena, CA
Altadena is a census-designated place (an unincorporated community) in California with about 41,921 residents and roughly 17,311 residential locations that internet providers can report on. The table below compares the providers that report service here.
Compare internet providers in Altadena, CA
Share of residential locations in Altadena where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | Spectrum | Fiber, Cable | 98% | |
| 2 | AT&T | Fiber, DSL, Fixed wireless | 95% | Check availability |
| 3 | T-Mobile Home Internet | Fixed wireless | 75% | |
| 4 | Verizon | Fiber, Fixed wireless | 53% | Check availability |
| 5 | California Internet | Fixed wireless | 3% |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Viasat | Satellite | 99%+ | |
| 3 | Starlink | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What to know about internet in Altadena
Spectrum reports service to the most residential locations in Altadena, about 98%. 4 providers report coverage of at least half of locations (Spectrum, AT&T, T-Mobile Home Internet, and Verizon), so the market looks competitive. T-Mobile Home Internet offers fixed wireless home internet, an option if you prefer no cable or fiber installation.
What technologies are available in Altadena?
Fiber is widely available: about 82% of locations in Altadena can get it. Gigabit-class service (1,000 Mbps down) is reported for about 87% of locations. DSL is still reported for about 33% of locations, which can be a fallback where fiber and cable do not reach. Fixed wireless home internet is reported for about 80% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Altadena that providers report they can serve. City-level figures, not your address.
Altadena at a glance
About 93% of households in Altadena have a broadband subscription, in line with the California average of 92%.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023).
Internet providers in places near Altadena
- Pasadena, CA (2 mi)
- La Cañada Flintridge, CA (4 mi)
- San Marino, CA (5 mi)
- Sierra Madre, CA (5 mi)
- South Pasadena, CA (6 mi)
- East San Gabriel, CA (6 mi)
- Glendale, CA (6 mi)
- La Crescenta-Montrose, CA (6 mi)
- Arcadia, CA (7 mi)
- San Gabriel, CA (7 mi)
- Alhambra, CA (8 mi)
- Temple City, CA (8 mi)
- Monrovia, CA (9 mi)
- Rosemead, CA (9 mi)
- Monterey Park, CA (10 mi)
- El Monte, CA (10 mi)
- Duarte, CA (11 mi)
- Burbank, CA (11 mi)
- South El Monte, CA (11 mi)
- East Los Angeles, CA (11 mi)
Frequently asked questions
Is fiber internet available in Altadena?
Yes, in part. About 82% of residential locations in Altadena can get fiber, 98% can get cable, and about 87% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in Altadena?
Spectrum reports service to about 98% of residential locations in Altadena, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve Altadena?
5 providers report service to at least 2% of locations in Altadena, and 4 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in Altadena?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Check your exact address
Coverage for a whole community cannot tell you what is available at your door. Enter your ZIP code, then confirm with each provider.
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