Post Office - Guy 4 Sunset Ln Guy, AR 72061 Phone : (501) 679-2401 Post Office - Guy Business Category Post Offices Toll-Free           (800) ASK-USPS U S Government--post Offices, Guy 6 Post Office Rd Greenbrier, AR 72058 Phone : (501) 679-2401 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools