Post Office - Lycoming 1059 County Route 29n Lycoming, NY 13093 Phone : (315) 343-2765 Post Office - Lycoming Business Category Post Offices Toll-Free           (800) ASK-USPS United States Government--postal Service, Local Area Post Offices, Lycoming 1059 Route 29 Oswego, NY 13126 Phone : (315) 343-2765 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools