Information Technology

Gartner Glossary

IMSI (International Mobile Subscriber Identity)

Unique number of up to 15 digits assigned to each GSM connection, containing country code, network operator code and mobile device number. See also HLR and IMEI.

Experience Gartner virtual conferences

Master your role, transform your business and tap into an unsurpassed peer network through our world-leading virtual conferences.

Gartner Webinars

Expert insights and strategies to address your priorities and solve your most pressing challenges.