How do i contact my local interbank branch? To contact your local branch by telephone or fax, please click here to find your location’s contact info and business hours. Complete the form below to submit a message to InterBank. E-mail submissions are monitored by bank personnel Monday through Friday 8am-5pm excluding Federal Holidays.What can i do with the interbank app? Take control of your cards through your mobile device, making it easy to set alerts, prevent fraud, and manage your finances on the go. Download the free InterBank App to have banking information at your fingertips. Check balances, make transfers or check deposits, find InterBank locations or ATMs, all on your smartphone.How many locations does interbank have in texas? Today, InterBank operates more than 40 locations in Texas and Oklahoma and has assets of more than $3.5 billion. We strive to provide outstanding service to meet the needs of our customers and contribute to the economic strength of the communities we serve.Does interbank own any banks in oklahoma? In March of 2015, InterBank acquired First State Bank of Yukon, Oklahoma. In May of 2015, InterBank acquired Vintage Bank which added locations in Waxahachie, Midlothian, and Red Oak, Texas. In September 2015 InterBank acquired the First National Bank of Throckmorton, Texas.