Oklahoma City's K-OKC booms in here anywhere near sunset, all-night, and for a while after sunrise. In the US mid-continent, KOKC is the dominant clear channel boomer that chases most others on AM 1520 to shut down at sunset (like KYND), or change directional signal, or reduce night-time power. In November, December & January, KOKC can be heard here virtually all day long.
At night, WWKB in Buffalo owns the east coast; KKZZ owns LA; while Washington's KKXA and Oregon's KKRR fight it out in the Pacific northwest.