Domain Insight 5/9: iHeart Prepping Honolulu Format Swap May 9, 2023 radionewsfeeds US Comments Off on Domain Insight 5/9: iHeart Prepping Honolulu Format Swap iHeartMedia is preparing a signal swap for two of its brands in Honolulu. This content is for Premium Annual and Premium Monthly members only. Visit the site and log in/register to read.