Call Directory Assistance
In Japan Directory Assistance Services
are provided by
NTT I04(Operator Assisted)
NTT 0I90 I04 555 (Automated Service)
It is impossible to Call these Numbers
Howether if you are "as charming as possible"
you might be lucky to get
a Number as a "special favor"
by calling NTT Headoffice
+8I 3 5205 558I