"Micro-SIM" redirects here. For the company, see MicroSim Corporation.
A typical SIM card (mini-SIM with micro-SIM cutout)T-Mobile nano-SIM card with NFC capabilities in the SIM tray of an iPhone 6sA TracFone Wireless SIM card has no distinctive carrier markings and is only marked as a "SIM card".
A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops). Technically the actual physical card is known as a universal integrated circuit card (UICC); this smart card is usually made of PVC with embedded contacts and semiconductors, with the SIM as its primary component. In practice the term "SIM card" is still used to refer to the entire unit and not simply the IC.
A SIM contains a unique serial number, integrated circuit card identification (ICCID), international mobile subscriber identity (IMSI) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and four passwords: a personal identification number (PIN) for ordinary use, and a personal unblocking key (PUK) for PIN unlocking as well as a second pair (called PIN2 and PUK2 respectively) which are used for managing fixed dialing number and some other functionality.[1][2] In Europe, the serial SIM number (SSN) is also sometimes accompanied by an international article number (IAN) or a European article number (EAN) required when registering online for the subscription of a prepaid card. It is also possible to store contact information on many SIM cards.
SIMs are always used on GSM phones; for CDMA phones, they are needed only for LTE-capable handsets. SIM cards are also used in satellite phones, smart watches, computers, or cameras.[3]
The first SIM cards were the size of credit and bank cards. Sizes were reduced several times over the years, usually keeping electrical contacts the same, to fit smaller-sized devices.[4]
SIMs are transferable between different mobile devices by removing the card itself. As of 2020, eSIM is superseding physical SIM cards in some domains, including cellular telephony. eSIM uses a software-based SIM embedded into an irremovable eUICC.
^"Calling Features on Your Samsung Galaxy Phone". Samsung. Limit Calling to Specific Numbers. Retrieved 19 April 2022.
^"Access codes". Nokia.
^Cite error: The named reference ihs was invoked but never defined (see the help page).
^GSMA Intelligence. "Understanding SIM evolution" (PDF). GSMA Intelligence. GSMA. Archived (PDF) from the original on 20 March 2023. Retrieved 31 May 2023.
A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number...
eSIM (embedded SIM) is a form of SIMcard that is embedded directly into a device. Instead of an integrated circuit located on a removable SIMcard, typically...
Some mobile phones support use of two SIM cards, described as dual SIM operation. When a second SIMcard is installed, the phone may allow users to switch...
The SIM Registration Act, officially designated as Republic Act No. 11934 and commonly referred to as the SIMcard law, is a Philippine law mandating the...
SIM Application Toolkit (STK) is a standard of the GSM system which enables the subscriber identity module (SIMcard) to initiate actions which can be...
networks, the SIMcard and SIM application were bound together, so that "SIMcard" could mean the physical card, or any physical card with the SIM application...
A SIM swap scam (also known as port-out scam, SIM splitting, simjacking, and SIM swapping) is a type of account takeover fraud that generally targets a...
obtained. GSM cloning occurs by copying cracking a secret key from the victim SIMcard, typically not requiring any internal data from the handset (the phone...
SIMcard (also known as TurboSIM or Unlock Chip) is considered to be the forerunner of a large family of "Dual SIM" devices (X-SIM, R-SIM, HyperCard,...
Key” if network locked. Windows phones will display the message, “This SIMcard can only be used on specific networks. Contact your customer service center...
mobile phone can hold up to four SIM cards, with a phone having a different device identifier for each SIMCard. SIM and R-UIM cards may be mixed together...
US. Mint Mobile offers users the option to buy either a physical SIMcard or an eSIM online. They charge users in increments of 3, 6, or 12 months, with...
messages. All GSM phones use a SIMcard to allow an account to be swapped among devices. Some CDMA devices also have a similar card called a R-UIM. Individual...
other networks, even if the thief changes the phone's SIMcard. Devices without a SIMcard slot or eSIM capability usually do not have an IMEI code. However...
Universal Account Number (UAN) under EPFO, and some other services such as a SIMcard or opening a bank account. According to the UIDAI website, any Aadhaar...
provisioned in the SIMcard and for cdmaOne and CDMA2000 networks, in the phone directly or in the R-UIM card (the CDMA equivalent of the SIMcard). Both cards...
A Subscriber Identity Module (SIM) card connector includes a connector body, the connector body defines a receptacle channel that extends inwardly from...
reserved for a full-sized (1FF) SIMcard would instead take an EMV debit card or credit card. This was possible as both 1FF SIM cards and debit/credit cards...
Provisioning – it is a special SIMcard that may be configured with different operator profiles. This is in contrast to an embedded SIM, which is not removable...
used version is on a mobile phone - with the authentication key held on a SIMcard. In Iceland 97% of the eligible population (13 years or older) has an active...
compared to nano-simcard to the same scale PCMCIA ATA Type I Card (PC Card ATA Type I) PCMCIA Type II, Type III cards CompactFlash Card (Type I), CompactFlash...
practise "eSIM upgrade" in the form of a normal SIMcard is possible (using the Android 9 eSIM APIs) or eSIM can be included into an SOC. The requirement...
use a SIMcard or have a SIMcard slot. An iPhone 4S activated on a CDMA carrier, however, does have a SIMcard slot but does not rely on a SIMcard for...
was followed by several sequels and many other spin-off Sim titles, including 2000's The Sims, which itself became a best-selling computer game and franchise...
Global Information
