Every first Monday of the month at exactly 12:00, mid day, the Dutch authorities test the disaster alarm.
In addition to emergency sound signals (luchtalarm) it also sends electronic alert messages via the Cell Broadcast System to all mobile phones in The Netherlands.
Most of my colleagues received it just now, but I didn’t on my Fairphone 2.
I think I have all necessary settings switched on (by default, I didn’t change them)
Many people at :nl: Werkt NL-Alert op de FP2? did not receive it, and neither did I.
However some months ago I did get an NL Alert for a nearby fire on my FP2 and since then I haven’t changed any settings, so this is quite surprising. It may be related to a software update on the Fairphone.