Chronology of call letters WABC

First station

• Date: ...June 30, 1923...
• Frequency:
  • 1310 khz (...June 30, 1923...)
• Location:
  • Anderson, Indiana (...June 30, 1923...)
• Owner of license:
  • Fulwider-Grimes Battery Co. (...June 30, 1923...)

Second station

• Date: ...June 30, 1925-June 30, 1926...
• Frequency:
  • 1180 khz (...June 30, 1925-June 30, 1926...)
• Location:
  • Asheville, North Carolina (...June 30, 1925-June 30, 1926...)
• Owner of license:
  • Asheville Battery Co. (...June 30, 1926...)

Third station

• Date: Nov. 1, 1926 (one site gives Dec. 16, another gives Dec. 17)-November 2, 1946
• Previous call letters: WAHG (at start of operation), WBOQ (by merger on May 28, 1940)
• Frequency:
  • 950 khz (1926...)
  • 920 khz (...June 30, 1927...)
  • 970 khz (...1927-November 11, 1928) ( NOTE: some sources give November 8, but actual date seems to be November 11, per contemporary newspaper article.)
  • 860 khz (November 11, 1928-March 29, 1941)
  • 880 khz (March 29, 1941-November 2, 1946)
• Location:
  • New York, New York (1926-November 2, 1946) (shown as Richmond Hill, New York on lists for June 30, 1927 and June 30, 1928.)
• Owner of license:
  • Atlantic Broadcasting Corporation (Alfred H. Grebe) (1926-November, 1927) ( NOTE: Transferred from Grebe's own license to Atlantic Broadcasting, owned by Grebe, at the end of 1926. Still shown as licensed to Atlantic Broadcasting Corp. in one listing dated June 30, 1928.)
  • Columbia Broadcasting System, Inc. (November, 1927-November 2, 1946) ( NOTE: One source gives Jan., 1929 for CBS' acquisition from Grebe.)
• Subsequent call letters: WCBS

Affiliated with W67NY and:

WABC-FM

• Date: November 1, 1943-November 2, 1946
• Previous call letters: W67NY
• Frequency:
  • 46.7 MHz (November 1, 1943-1945)
  • 96.9 MHz (1945-November 2, 1946)
• Location:
  • New York, New York (November 1, 1943-November 2, 1946)
• Owner of license:
  • Columbia Broadcasting System, Inc. (November 1, 1943-November 2, 1946)
• Subsequent call letters: WCBS-FM

Fourth station

• Date: March 1 (one source gives May 1), 1953-1998...
• Former call letters: WJZ
• Frequency:
  • 770 khz (March 1, 1953-1998...)
• Location:
  • New York, New York (March 1, 1953-1998...)