Passport Application Services - Williams 120 S 1st St Williams, AZ 86046 Phone : (928) 635-4572 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (928) 635-0349 Post Office - Williams 120 S 1st St Williams, AZ 86046 Phone : (928) 635-4572 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Toll-Free           (800) ASK-USPS Fax           (928) 635-0349