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The seven-digit dialing period for phone service customers in the 812 area code has been extended indefinitely.
Previous plans called for mandatory 10-digit dialing from 812 area code numbers to start Sept. 6, but concerns have been raised by communications companies serving the medical and law enforcement sectors.
The state was transitioning to 10-digit dialing because all the possible 812 numbers were going to be used up.
A new 930 area code is being added through the “overlay” method, which has been used for all new area code additions in the United States since 2008.
That means the 930 area code will be added to or superimposed over the entire 812 region which has covered southern, south-central, and parts of west-central Indiana since 1947.
The area includes Bloomington, Columbus, Evansville, New Albany and Terre Haute.
The Indiana Utility Regulatory Commission is holding a conference Sept. 3 to discuss the most recently-raised concerns.
Network Indiana contributed to this report.