United States Government--post Offices, Pennellville 1810 County Route 54 Phoenix, NY 13135 Phone : (315) 695-2397 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Post Office - Pennellville 374 County Route 54 Pennellville, NY 13132 Phone : (315) 695-2397 Post Office - Pennellville Business Category Post Offices Toll-Free           (800) ASK-USPS