Mobile Subscriber Integrated Services Directory Number (communications) A number string used to uniquely identify a mobile telephone subscriber in GSM, CDMA and UMTS cellular networks. The number is formatted according to the E.164 numbering plan, consisting of a country code (CC), national destination code (NDC) and subscriber number (SN).
See also: IMSI, IMEI, The GSM Specifications. Last updated: 2006-12-28
