səbskɹˈaɪbɚ nˈʌmbɚz tʃˈeɪndʒd tʊ ˈeɪt dˈɪdʒɪts ɪn tˈuː θˈaʊzənd wɛn ɐn ɐdˈɪʃənəl sˈɛvən ɔːɹ ˈeɪt wʌz ˈædᵻd tʊ ˈiːtʃ lˈoʊkəl ɛkstʃˈeɪndʒ kˈoʊd fɔːɹ ɛɡzˈæmpəl, "sˈɛvən θˈaʊzənd tˈuːhˈʌndɹɪd twˈɛnti tˈuː wˈʌn θˈaʊzənd tˈuːhˈʌndɹɪd θˈɜːɾi fˈoːɹ" ɪn wˈɛstmɪnstɚɹ ænd "ˈeɪt θˈaʊzənd nˈaɪnhˈʌndɹɪd fˈoːɹɾi sˈɪks wˈʌn θˈaʊzənd tˈuːhˈʌndɹɪd θˈɜːɾi fˈoːɹ" ɪn wˈɪmbəldən.
Subscriber numbers changed to eight digits in 2000 when an additional 7 or 8 was added to each local exchange code (for example, "7222 1234" in Westminster and "8946 1234" in Wimbledon).