Phone Numbers and Support. If you have a question about your bank account or another product you have through the Regions Bank then contact the Regions Bank Customer Service department. The telephone number is 800-734-4667.
Buffalo Grove is a village in Cook and Lake counties in the U.S. state of Illinois, within the northern suburbs of Chicago. As of the 2010 census, the village population was 41,496.
The county also boasts the birthplace of President Ronald Reagan (in Tampico), the Albany Mounds State Historic Site and a segment of one of the first continental highways-U.S. Route 30, aka the Lincolnway Highway. Morrison Illinois, the county seat, is centrally located on U.S. Route 30.