 Check in with Frontier Charter School. Smooth out some rough edges. Get yourself ready to go for a brand new school year with one of the highest allotments in the state. Frontier Charter School is enrolling now. 907-742-1181. Find out why they say they achieve academic excellence every day at FrontierCS.org. This is KVNT 1020 Eagle River, Alaska. Translated on K223BJ Eagle River, K287CL Eagle River, and K283AZ Anchorage.