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For almost a decade, Mosaic NetworX solutions continue to deliver wholesale and enterprise customers’ competitive services through a single provider. Our customers enjoy world-class customer support and a US-based Network Operations and Response Center available 24x7x365.

We look forward to hearing from you today!

contact us


Call or Text Us: 800-688-3770

Mosaic Sales:

Billing Questions:

Trouble Reporting: or call 866-724-2605 (8-MOSAIC-605)

Legal and Subpoenas:


700 Larkspur Landing Circle, Suite 214
Larkspur, CA 94939

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