Passport Application Services - Gastonia 301 W Main Ave Gastonia, NC 28052 Phone : (704) 867-7224 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (704) 867-7056 Post Office - Gastonia 301 W Main Ave Gastonia, NC 28052 Phone : (704) 867-7224 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (704) 867-7056