US Patent 12028933 Automated subscriber identification module (SIM) activation

Described herein are techniques, devices, and systems for receiving, by a mobile device and from a subscriber identity module (SIM), an input associated with an unstructured supplementary service data (USSD) code. The input can be provided by the SIM based on application data stored in the SIM. The SIM can receive the application data via an over-the-air (OTA) platform. The mobile device can transmit, to a service provider core network, a request associated with the USSD code. The mobile device can receive a subscription value based on the USSD code. The subscription value can be a mobile station international subscriber directory number (MSISDN) or an internet protocol (IP) multimedia subsystem (IMS) public user identity (IMPU).