GSO Tracking

Type your GSO tracking number below, get live delivery information with our express tracking system.

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About Golden State Overnight

Golden State Overnight (GSO) was founded in 1995 with a simple notion: that California companies should not be required to pay high national delivery rates for in-state shipments.

Today, GSO offers guaranteed ground and priority overnight delivery to every address in California, and select metropolitan areas of Nevada and Arizona. GSO customers enjoy a premium level standard of service, including later pickups, earlier deliveries and proactive package tracking, as well as unsurpassed customer service and a substantial continued cost savings over the national carriers.


If you want to track another express, please click here to choose the express company, we now provide 500+ express companies tracking services.

About ExpressTracking

ExpressTracking provides an all-in-one express tracking service. Tracking Express with your tracking number.

We are not affiliated with any courier company. If you have questions about the delivery process, please contact the courier company.

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