wɪððə tʃˈeɪndʒ tʊ ˈɔːlfˈɪɡjɚ dˈaɪəlɪŋ ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti sˈɪks, ðə sˈɪstəm ʌv nɛmˈɑːnɪks wʌz wɪθdɹˈɔːn ænd ðə θɹˈiːdˈɪdʒɪt lˈoʊkəl ɛkstʃˈeɪndʒ kˈoʊdz ʌv mˈɛni səbskɹˈaɪbɚz wɜːɹ ˈɔltɚd.
With the change to all-figure dialling in 1966, the system of mnemonics was withdrawn and the three-digit local exchange codes of many subscribers were altered.