Passport Application Services - Epping 71 Main St Epping, NH 03042 Phone : (603) 679-5952 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Post Office - Epping 71 Main St Epping, NH 03042 Phone : (603) 679-5952 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Toll-Free           (800) ASK-USPS