E.164 Numbering Resources for Trials Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Numbering Plan of the International Telephone Service Study Group 2
ITU-T Rec. E.164 describes the international public telecommunication numbering plan. ITU-T
Rec. E.190 describes the general principles to be utilized in the assignment of ITU-T E-series
international numbering resources. This Recommendation describes t