Who invented the SIM card?
September 22, 20242 Mins Read
Science and Technology Desk: SIM card or Subscriber Identification Module (SIM) was first invented by a German company. However, it is not known who or who is directly involved in this groundbreaking discovery of this institution. Even more surprising, the manufacturer sold the invention to a company in Finland instead of using it.

sim card

The first SIM card invented in the world was not shaped like today's modern SIM card. In 1991, the first German company 'Zitsek & Deviant' invented the SIM card. The headquarters of the company was in Munich, Germany.

However, the company decided to sell this invention for their own company or to market SIM cards. Zitsek & Devirant was the first manufacturer to sell nearly 300 SIM cards discovered by Finnish wireless network company Radiolinja.

The SIM card that was first invented looked a lot like the ATM card of today's era. Gradually, with the modern technology of various organizations, today's smart SIM card can be seen in the market.

The first mini SIM card was used in mobile phones in 1996. Later versions of SIM cards were made in smaller sizes. In 2003 this version was named Micro SIM.

Micro SIM was first used in mobile phones in 2010. This SIM card is used in the American technology company Apple's iPhone.

After the Micro SIM comes the smaller and more advanced Nano SIM card. This SIM card is used in almost all smartphones after 2014.

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According to the latest data of 2023, around 8 billion devices around the world use this SIM card to create a huge communication network around the world. According to the International Card Manufacturers Association (ICMA), Wikipedia reports that 5.4 billion SIM cards were manufactured worldwide in 2016 alone, and the manufacturing companies earned $6.5 billion in profit.