Golden State Overnight (GSO) Tracking

Enter Golden State Overnight (GSO) Tracking number in following tracker system to track and trace your GLS-USA Package, Express Freight, Shipping Carrier delivery status details online quickly. Web tracking helps you and the recipient to keep track of the delivery progress.

Enter your tracking number below, then click the “Track” button to check delivery status.

Golden State Overnight (GSO) Customer Service:

Telephone number: 1-800-322-5555
Email Address: customerservice@gls-us.com
Headquarters: GLS US, 4000 Executive Parkway, Suite 295, San Ramon, CA 94583

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