International Bancshares Corporation is a multibank financial holding company. The Company is engaged in providing a diversified range of commercial and retail banking services in its main banking and branch facilities located in north, south, central, and southeast Texas and the State of Oklahoma. The Company, through its subsidiary banks, is engaged in the business of accepting checking and savings deposits and the making of commercial, real estate, personal, home improvement, automobile and other installment and term loans. Its international banking business includes providing letters of credit, making commercial and industrial loans, and providing foreign-exchange services. The Company offers IBC Bank Online, an Internet banking product that provides customers with online access to banking information and services, as well as IBC Mobile Banking, which provides users with banking access from their mobile devices. The Company has 255 automated teller machines (ATMs).