The international telecommunication charge card | |
Status | In force |
---|---|
Year started | 1988 |
Latest version | 05/06 May 2006 |
Organization | ITU-T |
Committee | Study Group 1 |
Website | https://www.itu.int/rec/T-REC-E.118 |
E.118 is an international standard that defines the international telecommunication charge card, for use in payphones.[1] It also defines the Integrated Circuit Card Identifier (ICCID), which is used in Subscriber Identity Modules (SIMs, including SIM cards and eSIMs.[2] The standard was first developed in 1988 by what became the Standardization Sector of the International Telecommunication Union (ITU-T) with several revisions having been published since then.
The E.118 standard was first developed by the precursor to the ITU-T, International Telegraph and Telephone Consultative Committee (CCITT, in the French acronym)[3] and it was adopted by its governing body the World Telecommunication Standardization Conference (WTSC), as its 1988 meeting.[1] Since then it has been revised several times by Study Group 1, most recently in 1996.
The Integrated Circuit Card Identifier (ICCID) is a number to international identify callers, called a 'Primary Account Number', used i.a. in SIM cards including eSIM cards. Its layout is based on ISO/IEC 7812.[4] The ICCID is made up of:
Issuer identification number (IIN)
Maximum of seven digits:
Individual account identification
Check digit
E.118 stipulates that the ITU-T updates a list of all current internationally assigned IIN codes in its Operational Bulletins which are published twice a month.[5]