MSISDN: Difference between revisions

The MSISDN and [[international mobile subscriber identity]] (IMSI) are two important numbers used for identifying a mobile subscriber. The IMSI is stored in the [[Subscriber Identity Module|SIM]] (the card inserted into the mobile phone), and uniquely identifies the mobile station, its home wireless network, and the home country of the home wireless network. The MSISDN is used for routing calls to the subscriber. The IMSI is often used as a key in the [[GSM core network#HLR|home location register]] ("subscriber database") and the MSISDN is the number normally dialed to connect a call to the mobile phone. A [[Subscriber Identity Module|SIM]] has a unique IMSI that does not change, while the MSISDN can change in time, i.e. different MSISDNs can be associated with the SIM.

 

 

==Abbreviation==