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Managed Network Services & Business Internet in the Inland Empire
California Telecom is headquartered in Chino, in the heart of the Inland Empire. For over 18 years, we have designed, deployed, and managed network infrastructure for businesses across Ontario, Rancho Cucamonga, Riverside, San Bernardino, Corona, Fontana, Pomona, Upland, and surrounding cities. When you work with California Telecom, you are working with a local team that understands the business landscape and carrier infrastructure in the IE.
Being headquartered locally means same-day on-site support when remote resolution is not enough. Our engineers are not flying in from another state. They are down the road, and they know the fiber routes, the carrier availability, and the connectivity challenges specific to Inland Empire businesses.
Carrier Infrastructure in the Inland Empire
The Inland Empire has strong carrier infrastructure from Frontier, Spectrum, AT&T, and regional providers. Fiber availability has expanded significantly in Ontario, Rancho Cucamonga, and along the I-10 and I-15 corridors. For locations where fiber is not yet available, we deploy fixed wireless, broadband, and 4G/5G solutions to ensure connectivity.
As a carrier-neutral provider, we procure circuits from whichever carrier offers the best combination of availability, performance, and price for your specific address. We work with over 50 carriers and do not push any single provider. Your circuit recommendations are based on what works best for your location, not on commission structures.
Network Services Available
Where we serve
Our home market — hover any region for city coverage.
Inland Empire
Chino · Ontario · Rancho Cucamonga · Riverside · San Bernardino (serving all of SB + Riverside counties)
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Cities served in the Inland Empire: Chino, Chino Hills, Ontario, Rancho Cucamonga, Upland, Claremont, Pomona, Diamond Bar, Fontana, Rialto, San Bernardino, Riverside, Corona, Norco, Eastvale, Montclair, La Verne, Glendora, Azusa, West Covina, and surrounding communities throughout San Bernardino and Riverside counties.
Ready to work with a local network engineering team?
Our engineers are headquartered right here in Chino. Let us assess your network and show you what a local managed network services partner can do.