SWIFT codes, also known as bank identifier codes (BICs), are 8- or 11-digit codes that identify banks worldwide and are used to route funds transfers between banks. The code indicates a bank's country, location, and sometimes branch. While an 8-digit code identifies a bank's headquarters, an 11-digit code can further specify a branch. It is best to contact your bank directly to obtain the correct SWIFT code for receiving wire transfers to ensure funds are routed properly.