According to a small blurb in the March 2012 issue of CONSUMER REPORTS (page 9), technology now exists that allows for fake names and numbers to appear on your Caller ID. By logging onto one of several websites and paying a small fee, scammers can create a name and number they want to appear to be calling from.
Be very careful if the call appears to be from a bank or creditor. Do not give out any personal information. Instead, hang up and call the bank or creditor at the number on your statement.