Hours Of Operations H2O Wireless Maryland Baltimore 21218 H2O Wireless Hours of Operation and Location in Baltimore, MD 21218 4.6 - 200 votes 3046 Greenmount Ave, Baltimore, MD 21218 (410) 243-4466 Get Directions H2O Wireless Hours Category: Electronics Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore BaltimoreView More Apparel Sam's ClubCostcoMarshallsRoss Dress for LessBurlington Coat Factory Sports CostcoTargetSports AuthoritySkechersVans Jewelry Sam's ClubCostcoMarshallsBurlington Coat FactoryZales Recommend For You Metro PCS Bath & Body Works Verizon Wireless Micro Center Lululemon Athletica Jcrew Kids Foot Locker Dollar Store Radioshack Rue 21