Advice if asked about your "sin state"

If your credit card fraud prevention service calls you and asks about your 4-digit sin state, take this advice from me so that you will not be thrown into outer darkness with an operator who speaks in an unknown tongue where there is weeping and gnashing of teeth. The number is not meant to be a scale from 1000 to 9999 about your sin state.
Just look on the front of your credit card where it says, for example, "MEMBER SINCE 2008" and punch in those four digits. "Member since [date]."