Passport Application Services - Warren 167 Washington Valley Rd Warren, NJ 07059 Phone : (732) 469-6535 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (650) 577-4381 Post Office - Warren 167 Washington Valley Rd Warren, NJ 07059 Phone : (732) 469-6535 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (650) 577-4381 U S Govt Post 167 Washington Valley Rd Warren, NJ 07059 Phone : (732) 469-6535 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools