Its first commercial use was in the Teletype Model 33 and the Teletype Model 35 as a seven-bit teleprinter code promoted by Bell data services.
ɪts fˈɜːst kəmˈɜːʃəl jˈuːs wʌz ɪnðə tˈɛlᵻtˌaɪp mˈɑːdəl θˈɜːɾi θɹˈiː ænd ðə tˈɛlᵻtˌaɪp mˈɑːdəl θˈɜːɾi fˈaɪv æz ɐ sˈɛvənbˈɪt tˈɛlᵻpɹˌɪntɚ kˈoʊd pɹəmˈoʊɾᵻd baɪ bˈɛl dˈeɪɾə sˈɜːvɪsᵻz.