Automated Postal Center - South Barre 46 Main St South Barre, MA 01074 Phone : (978) 355-4900 Business Category Automated Postal Centers Toll-Free           (800) ASK-USPS Post Office - South Barre 46 Main St South Barre, MA 01074 Phone : (978) 355-4900 Business Category Post Offices Toll-Free           (800) ASK-USPS