GSO Shipping Tracking

GSO Tracking allowing you to track your Golden State Overnight Package, Freight, Ground Shipping status online in real-time. Locate your package during transit using your unique Bill Number.

GSO Customer Support

Phone number: 800-322-5555
Email ID: customerservice@gls-us.com
FAX: 916-636-5101
Head Office Address: GLS USA (Golden State Overnight), 4000 Executive Parkway, Suite 295, San Ramon, CA 94583

Top Couriers to Track: