Types of prepaid SIM cards and how to get them online
Know Your SIM Card
Staying connected with your loved ones is important and what better than a SIM card as your source of connectivity, entertainment, convenience, visibility, reach and security – all in one go!
How does a SIM card work?
A SIM card stands for Subscriber Identity Module and is an integrated circuit that securely stores the IMSI that is used to identify the subscriber and connect them to a mobile network via mobile phone or computer.
A SIM card contains:
International mobile subscriber Identity (IMSI)
Security authentication and ciphering information
Temporary local network information
List of services availed by subscribers
Two passwords: Personal Identity Number (PIN), Personal Unblocking Code (PUC)
Types of SIM cards
There are different types of SIM cards available and the type of SIM card you use depends on your handset type
The Standard SIM
The oldest SIM type available which measures 25x15mm and is the largest of all SIMs
Micro SIM (smaller)
This microchip was designed to make the smartphones slimmer and lighter, and measures 12x15mm. Although their usage has dropped, they are still used in few handsets
Nano SIM (smallest)
First introduced in the market in 2012 and are most commonly used in smartphones. They measure around 12.3X8.8mm.
This SIM houses a microchip inside a standard-sized SIM unit – SIM size can be adjusted basis the requirement. Most of the prepaid and postpaid cards of today use combi cards.