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 SIM cards, including eSIM cards.[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 international telecommunication charge card
German coin-card-creditcard telephone.jpg
Payphone for use of card
StatusIn force
Year started1988
Latest version05/06
May 2006
CommitteeStudy Group 1


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)
  • Individual account identification (IAI)
  • Check digit

The IIN begins with the Country code, (2 or 3 digits), as defined by Recommendation E.164 follow by the Issuer identifier (1–4 digits), which is often identical to the Mobile Network Code (MNC).

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]


  1. ^ a b "E.118 : The international telecommunication charge card". www.itu.int. Archived from the original on 2019-07-07. Retrieved 2019-11-05.
  2. ^ Bartolomeo, Giovanni; Kovacikova, Tatiana (2016-04-19). Identification and Management of Distributed Data: NGN, Content-Centric Networks and the Web. CRC Press. p. 161. ISBN 9781439879085.
  3. ^ "CCITT - 50 YEARS OF EXCELLENCE - 1956-2006" (PDF). International Telecommunication Union. p. 8. Archived (PDF) from the original on 2011-06-07. Retrieved 2011-03-20.
  4. ^ "What is ICCID? - IMEI.info". www.imei.info. Archived from the original on 2019-11-09. Retrieved 2019-11-09.
  5. ^ "Boletín de Explotación N.º 1183 (1.XI.2019)". www.itu.int. Retrieved 2019-11-09.