WDLR, 1550 in Delaware Ohio stays on day facilities 24/7 and has for a couple of years. It's pretty widely heard, from Tennessee to Wisconsin. Even with the translator they just got, they aren't powering down
They and sister station WQTT from Marysville, Ohio, have been running the same pattern (WDLR its day pattern, whereas WQTT is on night pattern) for close to five years.