Geo-fence based alerts are provided in a wireless communications network. A first subscriber device (SD) in the wireless communications network determines its current location. The first SD detects a geo-fence trigger by determining, as a function of the determined current location and a stored geo-fence database, that it has either (i) crossed a geo-fence boundary into a first active geo-fence in the stored geo-fence database or (ii) is within the first active geo-fence and has not yet begun playing back an alert associated with the first active geo-fence. Responsively, the first SD identifies an alert associated with the first active geo-fence and begins playback of the alert associated with the first active geo-fence.