Passport Application Services - Peterborough 23 Grove St Peterborough, NH 03458 Phone : (603) 924-3251 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (603) 924-3396 Post Office - Peterborough 23 Grove St Peterborough, NH 03458 Phone : (603) 924-3251 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (603) 924-3396