Hours Of Operations Sierra Wireless California Porterville 93257 Sierra Wireless Hours of Operation and Location in Porterville, CA 93257 4.0 - 36 votes 600 N Prospect St, Ste K, Porterville, CA 93257 (559) 781-6600 Get Directions Sierra Wireless Hours Category: Electronics Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore PortervilleView More Apparel MarshallsCarharttBig 5 Sporting GoodsFactory 2-UKohl's Outlet Sports TargetBig 5 Sporting GoodsColemanBlack DiamondBally Incorporated Jewelry MarshallsKohl's OutletDon Roberto Jewelers Recommend For You Salvation Data Recovery Csr Design Data Analyzers Data Recovery Computer & Network Specialists Communication Network Starlight Communications Liquid Technology Cmit Solutions United Network Service Incorporated Cyber Services