NL-Alert was tested at noon on December 2
The Dutch government conducted a nationwide test of its NL-Alert warning system at noon on Monday, December 2, 2024. The alert, accompanied by a loud, piercing sound, was sent to mobile phones connected to the Dutch mobile network.
NL-Alert tests are conducted twice annually, typically on the first Mondays in June and December. The next test is scheduled for June 3, 2025, at noon.
The message clearly indicated it was a test, stating: "NL-Alert [December 2, 2024] 12:00: TESTBERICHT. The government warns you during emergencies via NL-Alert. You will read what to do and where to find more information. *** TEST MESSAGE Netherlands Government Public Warning System. No action required."
The system is used to warn people during emergencies such as severe storms, major fires, and other life-threatening situations. It can also be activated in cases of terrorist attacks, epidemics, or when the 112 emergency phone lines are unavailable.
Some users might have received the test message more than once. This may occur if their devices are set to repeat notifications or are connected to both NL-Alert broadcast channels, which support older and modern mobile devices.
Not all users received the test message. Phones in airplane mode, powered off, or outside mobile coverage areas during the alert transmission did not receive the message. Additionally, devices connected to outdated 2G or 3G networks or to cell towers in Belgium or Germany, especially in border regions, may have been excluded.
In addition to mobile phones, the NL-Alert test message was displayed on digital advertising screens and public transportation displays.
