• Welcome to Phase 3 Communications, the Bay Area's leading provider of Fiber Optics Equipment and Infrastructure.

  • We build the networks that build your business.  

    Phase 3 has been helping businesses stay competitive by providing state-of-the-art communications technology for nearly 20 years.

  • Our fiber optic technicians are highly skilled and professionally trained in the installation, termination, splicing and testing of fiber optic technology in any environment.



  • Our engineers have the experience and expertise to design, install, document and maintain integrated communications network systems of any size and complexity.



  • Our team of knowledgeable engineers and drafting technicians can quickly turn around any trenching, directional boring and utility vault placement project from the initial field walkout to providing system as-builts.




B.A.R.T. District
Level 3 Fiber Optic
Norscan Systems
Small Enterprise

P3 Brochure

Download the Phase 3 brochure here.

  • Services
  • Distributed Antenna Systems (DAS)
  • About Us

At Phase 3 Communications we believe it’s crucial for businesses and organizations to maintain the best high-speed communications technology available in order to remain competitive and efficient in our information-rich 21st century economy. That’s why we’re dedicated to remaining the Bay Area’s top provider of fiber optics installation, maintenance, and infrastructure.


Fiber optics

Underground construction


Structured Cable


In our increasingly competitive and mobile drive business world, it is becoming more and more important to eliminate areas or poor wireless coverage, dropped calls, and low quality signals. That’s why at Phase 3 we have focused on developing a wide range of experience in the installation and maintenance of Distributed Antenna Systems (DAS). We utilize our extensive technological experience as well as knowledge of project management to provide the highest quality service possible, and at extremely competitive rates.


Our engineers and project managers have the expertise to complete DAS installations of any size and complexity quickly and efficiently, allowing our customers to enjoy reliable wireless service without interruption. This crucial technology prepares businesses of all kinds for the demands of an increasingly mobile business world.

Specialists in Fiber Optic and Structured Cabling

Phase 3 Communications was established in 1994 and serves Northern and Southern California with headquarters in San Jose and a regional office in Los Angeles. Our expertise ranges from the design and installation of Fiber Optic Networking Infrastructure and Voice and Data Networks to Underground Construction and Engineering Services. We are the Bay Area’s leader in Emergency Fiber Optic Restoration Service and we provide a single source solution for engineering, design and implementation of infrastructure to efficiently support your telecommunications needs.


Nicolas DeZubiria, President & Founder

Nicolas DeZubiria brings more than 25 years of experience in telecommunications and is responsible for operations, business development and project management at Phase 3 Communications

Nicolas successfully manages a wide variety of telecommunications projects including underground feeder cabling, long-haul fiber installations, aerial cabling, and large voice and data installations. He has directed over 100,000 splices for RCN and managed the installation of over 150,000 feet of fiber optic cable for Sprint along BART’s fiber optic network for wireless communications. His expertise and hands-on approach to finding creative solutions along with a strong emphasis on quality have been the keys to our success.



Phase 3 Communications was established by Nicolas DeZubiria in Oakland, California in 1993.