Hours Of Operations SIMPLE Mobile California National City 91950 SIMPLE Mobile Hours of Operation and Location in National City, CA 91950 4.3 - 125 votes 724 Highland Ave Ste B, National City, CA 91950 (619) 477-0712 Get Directions SIMPLE Mobile Hours Category: Electronics Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore National CityView More Apparel Ross Dress for LessBig LotsH & MJCPenneyFactory 2-U Sports TargetLA FitnessSkechersLidsRobert Wayne Footwear Jewelry ZalesKay JewelersCharming CharlieCharlotte RusseDaniel's Jewelers Recommend For You H2O Wireless American Eagle Outfitters Kids Foot Locker The Children's Place 99 Cents Only Stores Ross Stores New York & Company Disney Store ADT Ferguson