# Emergency alerts

`com.android.cellbroadcastreceiver`

- AOSP
- Exercise caution

Cell broadcast is designed to deliver messages to multiple users in an area.

This is notably used by ISPs to send Emergency/Government alerts.

Runs at boot time and is also triggered after exiting airplane mode.

## References

1. https://en.wikipedia.org/wiki/Cell_Broadcast
2. https://www.androidcentral.com/amber-alerts-and-android-what-you-need-know
3. https://android.googlesource.com/platform/packages/apps/CellBroadcastReceiver/+/refs/heads/master/src/com/android/cellbroadcastreceiver

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