Early Radio History K/W Switchover Stations W http://earlyradiohistory.us/kwtrivia.htm#kwmap list of stations with both K and W calls U.S. Commonwealths, Territories and Possessions http://earlyradiohistory.us/kwtrivia.htm Extremes "K/W Call Letters in the United States" http://earlyradiohistory.us/kwtrivia.htm Background Early Radio History Early Radio History Early Radio History State-by-State Chronological Recap K/W Boundary Switchover Date (1923) http://earlyradiohistory.us/kwtrivia.htm http://earlyradiohistory.us/kwtrivia.htm this Double Exceptions K/W Call Letters in the United States Early Radio History Early Radio History this Reasons For the Exceptions http://earlyradiohistory.us/kwtrivia.htm#kwmap http://earlyradiohistory.us/kwtrivia.htm#kwmap this K/W Call Letters in the United States http://earlyradiohistory.us/kwtrivia.htm#kwmap Early Radio History Historic map of K and W assignments by state http://earlyradiohistory.us/kwtrivia.htm#kwmap Early Radio History