First station[]
- Date: October 22, 1926-December 1942 (operated as WOOD-WASH from late 1931 to December 1942.)
- Previous call letters:WBDC
- Frequency:
- 1170 khz (...June 30, 1927-November 11, 1928)
- 1270 khz (November 11, 1928-March 29, 1941)
- 1300 khz (March 29, 1941...)
- Location:
- Grand Rapids, Michigan (October 22, 1926-March 29, 1941...)
- Owner of license:
- Baxter Launderers & Cleaners (October 22, 1926-early 1928) ( NOTE: This name was officially changed from "Baxter Laundry Co." when the call letters were changed from WBDC to WASH.)
- Baxter Laundries, Inc. (early 1928-March 9, 1929) ( Note that this does not actually appear to represent a change in ownership.)
- WASH Broadcasting Corporation (March 9, 1929-June 30, 1930...)
- Kunsky-Trendle Broadcasting Corporation, Inc. (Late 1931-September 24, 1936) (See also WXYZ.)
- King-Trendle Broadcasting Corporation, Inc. (September 24, 1936...) (See also WXYZ.) ( Note that this does not represent a change in ownership; John H. Kunsky, one of the two principal owners of the company, changed his name to King legally.)
- Merged with WOOD in late 1931; stations operated using call letters WOOD-WASH until December 1942.
Second station[]
- Location: