This Recommendation provides the number structure and functionality for the five categories of numbers used for international public telecommunication: geographic areas, global services, networks, groups of countries (GoC) and resources for trials. For each of the categories, it details the components of the numbering structure and the digit analysis required to successfully route the calls. Annex A provides additional information on the structure and function of international public telecommunication numbers (hereafter referred to as "international ITU-T E.164-numbers"). Annex B provides information on network identification, service parameters, calling/connected line identity, dialling procedures and addressing for geographic-based ISDN calls. Specific ITU-T E.164-based applications, which differ in usage, are defined in separate ITU-T Recommendations, e.g., [ITU-T E.168], Application of E.164 numbering plan for UPT.
ITU-T E.164-2010 Referenced Document
ITU-T E.101 Definitions of terms used for identifiers (names numbers addresses and other identifiers) for public telecommunication services and networks in the E-series Recommendations Study Group 2
ITU-T E.123 Notation for National and International Telephone Numbers e-mail addresses and Web addresses SERIES E: OVERALL NETWORK OPERATION TELEPHONE SERVICE SERVICE OPERATION AND HUMAN FACTORS International operation - General provisions concerning users Study Grou
ITU-T E.129 Presentation of national numbering plans (Study Group 2)
ITU-T E.131 Subscriber Control Procedures for Supplementary Telephone Services
ITU-T E.164.1 (Pre-Published) Criteria and procedures for the reservation assignment and reclamation of E.164 country codes and associated identification codes (ICs)
ITU-T E.164.2 ITU-T E.164 numbering resources for trials
ITU-T E.164.3 Principles Criteria and Procedures for the Assignment and Reclamation of E.164 Country Codes and Associated Identification Codes for Groups of Countries Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Internationa
ITU-T E.166 Numbering Plan Interworking for the E.164 and X.121 Numbering Plans - Series E: Telephone Network and ISDN Operation Numbering Routing and Mobile Services - International Operation - Numbering Plan of the International Telephone Service RECMN X.122; Study
ITU-T E.168 Application of E.164 Numbering Plan for UPT - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - International Operation - Numbering Plan of the International Telephone Service Numbering Routing and Mobile Services
ITU-T E.169 Application of Recommendation E.164 numbering plan for universal international numbers for international telecommunications services using country codes for global services SERIES E: OVERALL NETWORK OPERATION TELEPHONE SERVICE SERVICE OPERATION AND HUMAN
ITU-T E.169.2 Application of Recommendation E.164 Numbering Plan for Universal International Premium Rate Numbers for the International Premium Rate Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operatio
ITU-T E.169.3 Application of Recommendation E.164 Numbering Plan for Universal International Shared Cost Numbers for the International Shared Cost Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation
ITU-T E.190 Principles and Responsibilities for the Management Assignment and Reclamation of E-Series International Numbering Resources - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Operation Numbering Routing and Mobile