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First station[]
- Date: October 1, 1921-March 1, 1953 ( NOTE: One source gives May, 1921 as start date)
- Frequency:
- 833 kHz (October 1, 1921-May 15, 1923) [concurrently with 619, see history page]
- 619 kHz (...October 2, 1922-October, 1922) [concurrently with 833, see history page]
- 660 khz (May 15, 1923-June 30, 1928...)
- 760 kHz (1928-March 29, 1941)
- 770 kHz (March 29, 1941-March 1, 1953)
- Location:
- Newark, New Jersey (October 1, 1921-1923)
- New York, New York (...June 30, 1923-June 30, 1924...)
- Bound Brook, New Jersey (...June 30, 1926-June 30, 1928...) ( NOTE: Shown as "Bound Brook (New York), New Jersey" in a database dated June 30, 1928.)
- New York, New York (...March 29, 1941...)
- Owner of license:
- Subsequent call letters: WABC
Second station[]
- Date: November 3, 2008-2016...
- Previous call letters: WJFK
- Frequency:
- 1300 khz (November 3, 2008-2016...)
- Location:
- Owner of license:
- CBS Radio WLIF-AM (November 3, 2008-2016) ( NOTE: See also WLIF-FM.)