sˌʌm fˈɔːɹmz ʌv sˈɪɾi dᵻɹˈɛktɚɹiz pɹəvˈaɪd ðɪs fˈɔːɹm ʌv lˈʊkʌp fɔːɹ lˈɪstᵻd sˈɜːvɪsᵻz baɪ fˈoʊn nˈʌmbɚ, ɐlˈɔŋ wɪð ɐdɹˈɛs kɹˈɔsɹˈɛfɹənsɪŋ.
Some forms of city directories provide this form of lookup for listed services by phone number, along with address cross-referencing.