U S Government--us Postal Service, For Zip Code Information Call, Oglethorpe Montezuma, GA 31063 Phone : (478) 472-8229 Business Category Government Offices-Federal Government Offices & Public Schools U S Government--us Postal Service, Oglethorpe Montezuma, GA 31063 Phone : (478) 472-8229 Business Category Government Offices-Federal Government Offices & Public Schools