Passport Application Services - Stateline 223 Kingsbury Grade Stateline, NV 89449 Phone : (775) 588-1943 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Post Office - Stateline 223 Kingsbury Grade Stateline, NV 89449 Phone : (775) 588-1943 Business Category Post Offices Toll-Free           (800) ASK-USPS