About Us

Sierra Telephone has been providing service to customers in Eastern Madera and Mariposa Counties since 1895. A 100% digital, fiber optic network and “self-healing” fiber ring provide reliable, secure service of the highest quality. A wide variety of products and services are available to customers within our 775 square mile serving area.
Sierra Tel Internet is the premier DSL Internet service provider throughout Eastern Madera and Mariposa counties.
Sierra Tel Broadband is part of the Sierra Tel family of companies that have been providing telecommunications products and services for more than 100 years and is based in California’s beautiful central Sierra Nevada mountains, just south of Yosemite National Park.
Business Systems
Sierra Tel Business Systems has been providing quality service to our customers since 1984. We are proud to be a part of the Sierra Tel Family which has been in the telecommunications industry for over 100 years. Our services include intrusion alarms and video surveillance systems.
We are your one stop source for all of your business technology needs. Our staff takes pride in providing superior products and great customer service at an exceptional value. We understand business and the bottom-line. Let us provide you with the technology solutions that your business needs to perform at its best.
Long Distance
We have partnered with Sierra Telephone to save you valuable time and to make your life easier with “One Bill Convenience”.