Passport Application Services - Plattsburgh 10 Miller St Plattsburgh, NY 12901 Phone : (518) 563-1450 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (518) 562-2995 Post Office - Cpu Champlain National Bank 500 State Route 3 Plattsburgh, NY 12901 Phone : (518) 563-1450 Business Category Post Offices Toll-Free           (800) ASK-USPS Automated Postal Center - Plattsburgh 10 Miller St Plattsburgh, NY 12901 Phone : (518) 563-1450 Business Category Automated Postal Centers Toll-Free           (800) ASK-USPS Fax           (518) 562-2995 Post Office - Plattsburgh 10 Miller St Plattsburgh, NY 12901 Phone : (518) 563-1450 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (518) 562-2995