Hours Of Operations SIMPLE Mobile California National City 91950 SIMPLE Mobile Hours of Operation and Location in National City, CA 91950 4.9 - 85 votes 1021 Highland Ave, National City, CA 91950 (619) 757-0317 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 FitnessSkechersFinish LineHat Club Jewelry ZalesKay JewelersCharming CharliePiercing PagodaIcing 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