# Best Fiber Internet Providers in Ontario, CA (2026)
Ontario, California (Inland Empire) has growing fiber availability from [AT&T Fiber](/providers/att) and [Frontier](/providers/frontier) Fiber. Fiber adoption is increasing as Inland Empire residents discover symmetrical speeds, no data caps, and dedicated bandwidth that [Xfinity](/providers/xfinity)'s cable network cannot match.
Fiber Internet Providers in Ontario
### 1. AT&T Fiber AT&T Fiber offers symmetric gigabit service in select Ontario neighborhoods with no data caps and no equipment rental fees.
**Speeds:** 300 Mbps – 5 Gbps (symmetrical) **Starting price:** ~$55/mo **Type:** Fiber optic (FTTH) **Data caps:** None
### 2. Frontier Fiber Frontier Fiber is available in select Ontario neighborhoods, offering competitive fiber pricing.
Check What's Available at Your Address
See which fiber, cable, and wireless providers serve your location — independent and 100% free for consumers.
Check My Address**Speeds:** 500 Mbps – 2 Gbps (symmetrical) **Starting price:** ~$50/mo **Type:** Fiber optic (FTTH) **Data caps:** None
Cable & Other Alternatives
If fiber isn't available at your address yet:
### Xfinity Xfinity covers most of Ontario with its cable network. Its infrastructure delivers asymmetric speeds with slow uploads, shared bandwidth, and a 1.2 TB monthly data cap.
**Speeds:** 200 Mbps – 1.2 Gbps (download only; uploads max ~35 Mbps) **Starting price:** ~$55/mo **Type:** Cable (coaxial) **Data cap:** 1.2 TB/month
### T-Mobile Home Internet $50/mo flat rate, average speeds ~115 Mbps. No installation required.
Price Guide
| Plan Type | Speed | Monthly Cost | |-----------|-------|-------------| | Fiber Gigabit | 940/940 Mbps | $80 | | Fiber 300 | 300/300 Mbps | $55 | | Cable 400 Mbps | 400/20 Mbps | $55–$65 | | Fixed Wireless | ~115 Mbps avg | $50 |
What to Look For
When comparing plans in Ontario, watch for: - **Data caps** -- Xfinity enforces a 1.2 TB monthly data cap; fiber providers typically have none - **Upload speed** -- Critical for remote work, video calls, and gaming. Fiber delivers symmetrical uploads; cable maxes out around 35 Mbps - **Contract terms** -- AT&T Fiber and [T-Mobile Home Internet](/providers/t-mobile) are typically no-contract
Check fiber availability at your Ontario, CA address first at [fiberfinder.ai](https://fiberfinder.ai/providers/ontario-ca).