Located in the Eastern (GMT -05:00) time zone. Area code 930 serves the state of Indiana. This area code was assigned on July 31st, 2013. On March 7th, 2015 it went into service. 930 is a General Purpose Code. 930 service area does overlap with 812 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D.