The section of Route 6-a from West Junius to Halsey Corners was designated as New York State Route 291 (west of Magee) and part of NY 89 (east of Magee) as part of the 1930 renumbering of state highways in New York.
During the 1930 renumbering of state highways in New York, a section of Route 6-a from West Junius to Halsey Corners was designated as New York State Route 291 (west of Magee) and part of NY 89 (east of Magee).