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SIM card has no distinctive carrier markings and is only marked as a “SIM CARD”. It is also possible to store contact information on many SIM cards. SIM cards” are transferable between different mobile devices. This specification describes the physical and logical behaviour of the SIM. Today, SIM cards are ubiquitous, allowing over 7 billion devices to connect to cellular networks around the world. 5 billion in revenue for traditional SIM card vendors. The rise of cellular IoT and 5G networks is predicted to drive the growth of the addressable market for SIM card manufacturers to over 20 billion cellular devices by 2020.
SIM card ecosystem with the entrance of new players specializing in “digital” SIM card provisioning and other value-added services for mobile network operators. Many non-contractual “pay-as-you-go” arrangements require the subscriber to actively use credit periodically to avoid account expiration, expiration period depends on network operators, typically defining a period from three months to one year. This is sometimes associated with the SIM card being made “inactive” by the network. SAR, Lithuania and the Philippines, do not. 4 by 4 mm silicon chip in a SIM card which has been peeled open. Note the thin gold bonding wires, and the regular, rectangular digital memory areas. Modern SIM cards allow applications to load when the SIM is in use by the subscriber.
There is an identical ETSI specification with different numbering. ETSI and 3GPP maintain the SIM specifications. The main specifications are: ETSI TS 102 223, ETSI TS 102 241, ETSI TS 102 588, and ETSI TS 131 111. SIM toolkit applications were initially written in native code using proprietary APIs.