Remember IMSI
Full name: International Mobile Subscriber Identity
Memory aid: Subscriber is the S: identify the subscription.
An IMSI is not a public telephone number.
Study area: Mobile & cellular · Batch 5
Relevant study for: CompTIA A+ Core 1 220-1201 · CompTIA Network+ N10-009
Practice with exam flashcards →Hardware & Components / Knowledge library
IMSI — International Mobile Subscriber Identity
Identifies a mobile subscriber within cellular systems.
Why learn IMSI — International Mobile Subscriber Identity?
Identifies a mobile subscriber within cellular systems.
Where it came from
An IMSI is not a public telephone number.
- Memory aid (a learning cue, not the expansion): Subscriber is the S: identify the subscription.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand IMSI: International Mobile Subscriber Identity.
- Recall this memory aid: Subscriber is the S: identify the subscription.
- Explain the practical use: Identifies a mobile subscriber within cellular systems.
- Explain this distinction: An IMSI is not a public telephone number.
- Identify IMSI in a device specification, architecture diagram, or system inventory.
Documentation and sources
- GSMA technology resources (www.gsma.com)