The Twilio Mobile Core is a software-based platform that enables wireless devices to connect to cellular networks independently of their radio technologies, providing global scale, high availability, and fast iteration cycles. It allows developers to build new use cases and provides insights for scaling fleets of IoT devices. The core works by authenticating and authorizing devices to connect to the network through attachment procedures, establishing dedicated tunnels between the device and the carrier network. Twilio's Mobile Core is 100% software-based, deployed on Amazon Web Services, and offers a continuous deployment strategy with integrated event streaming platforms for collecting and analyzing events produced by the network. It provides powerful APIs for fine-grained control over fleets of devices and supports innovative features through an agile process.