MSISDN is a number uniquely identifying a subscription in a GSM or UMTS mobile network. Simply put, it is the telephone number to the SIM card in a mobile/cellular phone. The abbreviation has several interpretations, most common one being "Mobile Subscriber Integrated Services Digital Network Number"[1]..
The MSISDN together with IMSI are two important numbers used to identify a mobile phone. IMSI is often used as a key in the HLR ("subscriber database") and MSISDN is the number normally dialed to connect a call to the mobile phone.
The MSISDN follows the numbering plan defined in the ITU-T recommendation E.164.
MSISDN Format
MSISDN is maximized to 15 digits, prefixes not included (e.g. 00 prefixes an international MSISDN when dialling from Sweden).
In GSM and its variant DCS 1800, MSISDN is built up as
MSISDN = CC + NDC + SN
CC = Country Code
NDC = National Destination Code, identifies one or part of a PLMN
SN = Subscriber Number
In the GSM variant PCS 1900, MSISDN is built up as
MSISDN = CC + NPA + SN
CC = Country Code
NPA = Number Planning Area
SN = Subscriber Number
Answered by
jaivir
, an ibibo Master,
at
6:27 PM on May 30, 2008