Thursday, November 26, 2009

What is an MSISDN ?

Mobile Station Integrated Services Digital Network Number (MSISDN)
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Used to identify a subscriber, below mentioned the structure of the MSISDN.

Country Code (CC)||National Destination Code (NDC)||Subscriber Number (SN)

<--1,2or3 digits-->

<--------------------------Maximum 15 Digits ---------------------------->


Country Code --> Country or group of countries of the subscriber.

National Destination Code --> each PLMN in a country has one or more NDCs allocated to it.

NDC may used to route a call to the appropriate network.

Subscriber Number -->identifies the subscriber within the number plan of a PLMN.

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