Acronym for International Mobile Subscriber Identity, IMSI is a unique number that is associated with all GSM and UMTS network mobile phone users. An International Mobile Subscriber Identity is up to 15 digits long. The first three digits represent the country code, followed by the the network code. The remaining digits, up to fifteen represents the unique subscriber number from within the network’s customer base.
IMSI
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Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.
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