U.S. Bankcorp is the parent company of U.S. Bank National and is the fifth largest bank in the United States. U.S. Bankcorp services over 15 million customers and is a nationally chartered bank. The bank operates 3,164 banking offices and over $5,000 ATM’s. Services that U.S. Bankcorp offers include banking, brokerage, insurance, investment, mortgage, trust and payment services. If you are trying to get in touch with a live customer service agent at U.S. Bankcorp continue reading.