PIERRE, S.D.(DRGNews)- Sunday is 605 Day in South Dakota.

Tourism department spokesperson Katlyn Svendsen says the “holiday” came about because the entire state is served by one area code.

She says there are a variety of ways to recognize 605 Day.

Svendsen says the Department of Tourism encourages people to tag social media posts with #605Day.

You can find South Dakota fun facts and more information about 605 Day at TravelSouthDakota.com/605-Day.