Internet providers in Simi Valley, CA
Simi Valley is a city in California with about 125,769 residents and roughly 49,299 residential locations that internet providers can report on. The table below compares the providers that report service here.
Compare internet providers in Simi Valley, CA
Share of residential locations in Simi Valley 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 | 94% | |
| 2 | AT&T | Fiber, DSL, Fixed wireless | 88% | Check availability |
| 3 | IsoFusion | Fiber | 57% | |
| 4 | T-Mobile Home Internet | Fixed wireless | 56% | |
| 5 | Siteserver | Fixed wireless | 44% | |
| 6 | Verizon | Fiber, Fixed wireless | 41% | Check availability |
| 7 | California Internet | Fixed wireless | 2% |
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 Simi Valley
Spectrum reports service to the most residential locations in Simi Valley, about 94%. 4 providers report coverage of at least half of locations (Spectrum, AT&T, IsoFusion, and T-Mobile Home Internet), so the market looks competitive. Fiber-focused providers reporting service here include IsoFusion (57%). T-Mobile Home Internet and Siteserver offer fixed wireless home internet, an option if you prefer no cable or fiber installation.
What technologies are available in Simi Valley?
Fiber is widely available: about 60% of locations in Simi Valley can get it. Gigabit-class service (1,000 Mbps down) is reported for about 63% of locations. DSL is still reported for about 75% of locations, which can be a fallback where fiber and cable do not reach. Fixed wireless home internet is reported for about 81% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Simi Valley that providers report they can serve. City-level figures, not your address.
Simi Valley at a glance
About 94% of households in Simi Valley have a broadband subscription, 2 points above the California average of 92%.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023).
Internet providers in places near Simi Valley
- Oak Park, CA (6 mi)
- Moorpark, CA (7 mi)
- Agoura Hills, CA (8 mi)
- Thousand Oaks, CA (9 mi)
- Calabasas, CA (10 mi)
- Stevenson Ranch, CA (13 mi)
- Fillmore, CA (13 mi)
- Castaic, CA (16 mi)
- Camarillo, CA (17 mi)
- Malibu, CA (17 mi)
- Santa Clarita, CA (18 mi)
- San Fernando, CA (18 mi)
- Santa Paula, CA (19 mi)
- Santa Monica, CA (23 mi)
- Beverly Hills, CA (24 mi)
- Burbank, CA (25 mi)
- West Hollywood, CA (25 mi)
- Los Angeles, CA (26 mi)
- Marina del Rey, CA (26 mi)
- Oxnard, CA (27 mi)
Frequently asked questions
Is fiber internet available in Simi Valley?
Yes, in part. About 60% of residential locations in Simi Valley can get fiber, 93% can get cable, and about 63% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in Simi Valley?
Spectrum reports service to about 94% of residential locations in Simi Valley, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve Simi Valley?
6 providers report service to at least 2% of locations in Simi Valley, and 4 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
Is there fiber internet in Simi Valley?
Fiber providers reporting service in Simi Valley include IsoFusion (57% of locations). Other providers may also offer fiber in parts of the city, so check your address.
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 Simi Valley?
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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