ðə kˈoʊd ɪz jˈuːzd æt wˈʌnhˈʌndɹɪd sˈɛvənti tˈɛlᵻfˌoʊn ɛkstʃˈeɪndʒᵻz ɪn ænd ɚɹˈaʊnd ɡɹˈeɪɾɚ lˈʌndən æz pˈɑːɹt ʌvðə lˈɑːɹdʒɪst lˈɪŋkt nˈʌmbɚɹɪŋ skˈiːm ɪnðə juːnˈaɪɾᵻd kˈɪŋdəm.
The code is used at 170 telephone exchanges in and around Greater London as part of the largest linked numbering scheme in the United Kingdom.