May 27, 2025 – True Corporation Plc, in collaboration with the Department of Disaster Prevention and Mitigation (DDPM), sent the first real emergency alert through the Cell Broadcast Service this morning at approximately 10:33 AM to warn residents of flash flooding in Phu Kradueng District, Loei Province. The alert message read: “DDPM warns of flash flood/riverbank overflow at Pong River on May 27, 2025, at 11:00 AM in the areas of Phu Kradueng Subdistrict and Si Than Subdistrict, Loei Province. The water level of Pong River is currently near overflow. Please move belongings to higher ground and relocate vulnerable groups to safe areas immediately. Stay closely informed through official local government announcements.” The warning area covers Phu Kradueng Subdistrict and Si Than Subdistrict. According to the Official Statistics Registrations Systems (April 2025), the population in these areas is over 27,143 people.
Mr. Chakkrit Urairat, Chief Corporate Affairs Officer, True Corporation Plc., said, “This Cell Broadcast Service emergency alert supports mobile users on the True and dtac networks using 5G and 4G systems. It can instantly distribute messages to all users in the target area without requiring knowledge of recipients’ phone numbers, enabling rapid, accurate, and comprehensive emergency warnings that truly reach the at-risk population. For users on 3G and 2G systems, True Corporation sent SMS messages to ensure that everyone in the area receives complete warning information.”
This Cell Broadcast Service emergency alert marks another significant milestone in elevating Thailand’s disaster warning measures to international standards, particularly in an era of increasingly frequent and severe natural disasters. This collaboration reinforces True Corporation’s role as a leader in 5G network technology and as a service provider committed to safeguarding the safety of Thai citizens nationwide.
About Cell Broadcast Service
Cell Broadcast Service (CBS) is a communication technology that enables messages to be sent to all 4G and 5G mobile devices within a specific geographic area. It supports Android devices running version 11 or later, as well as iPhones with iOS 18 or later. Mobile users connected to cell towers in the target area will receive the alert without requiring a specific phone number. This system is critically important for emergency and disaster warnings, as it allows for rapid and accurate communication with people in affected areas.
