In less than a year, South Dakota residents will be required to dial "605" before calling every number in the state. But the state is encouraging residents to start getting into the habit now. The ...

South Dakotans might have to edit their contact lists in their phones soon. Beginning Sunday, callers in-state will have to include the "605" area code to complete their calls to fellow South Dakotans ...

In less than a year, South Dakota residents will be required to dial “605” before calling every number in the state. But the state is encouraging residents to start getting into the habit now. The ...