TM SIM registration is a mandatory process in the Philippines, ensuring compliance with the country's SIM Card Registration Act. This initiative aims to curb fraudulent activities, scams, and unauthorized use of SIM cards. To register a TM SIM, users must provide valid identification, such as a government-issued ID, and complete the registration online or through TM's official platforms. The process is straightforward, requiring users to fill out a form with personal details and verify their information. Timely registration is crucial to avoid service interruptions.