ðɪ ɛntˈaɪɹɪɾi ʌv ˌɛnwˈaɪ fˈoːɹhˈʌndɹɪd twˈɛnti sˈɪks wʌz ɐsˈaɪnd æz pˈɑːɹt ʌvðə nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi ɹᵻnˈʌmbɚɹɪŋ ʌv stˈeɪt hˈaɪweɪz ɪn nˈuː jˈɔːɹk æz ɐ nˈɔːɹθwɚd ɛkstˈɛnʃən ʌv pˌiːˈeɪ wˈʌnhˈʌndɹɪd ˈeɪɾi nˈaɪn, ɐ ʃˈɔːɹt ɹˈaʊt lˈiːdɪŋ sˈaʊθ tə kˈɔɹi, pˌɛnsɪlvˈeɪniə.
The entirety of NY 426 was assigned as part of the 1930 renumbering of state highways in New York as a northward extension of PA 189, a short route leading south to Corry, Pennsylvania.