1. A method for predicting potential reach of an alert to a plurality of targeted recipients within an emergency mass notification system, the method comprising: receiving a plurality of recipients data and delivery devices data, the recipients data and delivery devices data defining a targeted audience of an alert, the plurality of recipients data identifying at least one of a designated set of users and non-personal notification devices delivery end points, and the plurality of delivery devices data identifying at least one of a designated set of alert personal communication devices associated with the plurality of recipients and a designated set of non-personal devices delivery end points; evaluating at least one of: contact data targeting quality rating based on the plurality of the recipients data and delivery devices data and a user and device information database; tracking data targeting quality rating based on the plurality of the recipients data and delivery devices data and an alert delivery events tracking database; real-time data targeting quality rating based on the plurality of the recipients data and delivery devices data and a real-time data database; generating at least one prediction of the potential reach of the alert based on at least one of the contact data targeting quality rating, the tracking data targeting quality rating and the real-time data targeting quality rating; and outputting the prediction of the potential reach of the alert.