IMSI
International Mobile Subscriber Identity
The IMSI is a globally-unique code number that identifies a GSM subscriber to the network. The IMSI is linked to your account information with the carrier. The IMSI resides in the SIM card, which can be moved from one GSM phone to another.
See: SIM
Last updated Apr 2, 2015 by Rich Brome
Editor in Chief Rich became fascinated with cell phones in 1999, creating mobile web sites for phones with tiny black-and-white displays and obsessing over new phone models. Realizing a need for better info about phones, he started Phone Scoop in 2001, and has been helming the site ever since. Rich has spent two decades researching and covering every detail of the phone industry, traveling the world to tour factories, interview CEOs, and get every last spec and photo Phone Scoop readers have come to expect. As an industry veteran, Rich is a respected voice on phone technology of the past, present, and future.
