Prior to 2001, all of northern Indiana had the "219" area code.

INDIANAPOLIS | Indiana will get its eighth area code next year when 463, which spells "IND" on a telephone keypad, begins serving users in the Indianapolis area.

(WNDU) - Starting Sunday, Oct. 24, you need to start using 10 digits whenever you place a local call in Indiana’s 219 and 574 area code locations. Any calls that don’t use it won’t be completed.