When the first set of New York state routes were assigned in 1924, SH 417 became part of NY 6 while SH 104 and SH 5404 were included in NY 24 and SH 1224 was designated as part of NY 30. NY 6 was replaced by US 9 while NY 30 was co-designated as US 4 between Glens Falls and Whitehall in 1927 following the creation of the U.S. Highway System in late 1926. The remainder of modern NY 149 was unnumbered prior to 1930.