BIG Fiber
Previously known as: BandwidthIG
BIG Fiber (formerly Bandwidth IG)
BIG Fiber is a leading dark fiber network provider building the infrastructure that powers data centers, enterprises, and cloud connectivity. Headquartered in Sunnyvale, California, and serving key U.S. markets including the San Francisco Bay Area, Greater Atlanta, and Greater Portland, BIG Fiber designs and operates privately owned, purpose-built underground fiber networks engineered for reliability, scalability, and ultra-low latency.
Rebranded from Bandwidth IG in 2025, the company reflects a bold vision to support the next generation of digital transformation, AI, and edge computing. With a focus on integrity, adaptability, and customer excellence, BIG Fiber delivers secure, high-capacity dark fiber solutions that connect the world’s most demanding applications and enterprises—one strand at a time.