Area code 717 Jacob tells Edgar is actually in Pennsylvania Dutch country where many Amish used to live and some still do.
Rumspringa is the ritual all Amish go through between the ages 14 to 22. They experience the outside world until they are ready to come home. When they return whatever happens is forgiven and forgotten as long as they choose Gods path. But if they choose to stay longer, the girl or boy is excommunicated.
Jacob gives the phone number to his town as (717)1. Area code 717 is Lancaster, Pennsylvania. Home to a large number of Amish.