What is a SIM card?


A SIM card, or in its full form, subscriber identity module, is an integrated circuit chip car that is used to receive, store and retrieve GSM data from the global system for mobile communication (GSM) subscribers.

The SIM card was first specified by the European Telecommunications Standards Institute under TS 11.11.

With the appearance of the universal mobile telecommunications system (UMTS) built by the 3GPP, the SIM card specification was transferred to the 3GPP.

What data does your SIM card hold? Find out on the next page.

Name of Technology:

Subscriber Identity Module

Year Introduced:


Invented by :

Giesecke & Devrient

Open Source or Proprietary:


Main technology category:




Next ArticleWhat is a GIF?
Comments (0)

Leave a Reply

Your email address will not be published. Required fields are marked *


  • Favorite list is empty.
FavoriteLoadingClear favorites

Your favorite posts saved to your browsers cookies. If you clear cookies also favorite posts will be deleted.