A system and method for providing real-time alert message to one or more subscribers in a service provider network is provided. The service provider network may be an enterprise, a communication service provider or a hosted service. A throttler application receives request for alert message generated by an alert originator application and relays the request to a gateway of an alert notification module. A token associated with the request is validated. Based on token parameter values which includes subscriber identities, delivery channel specifications, alert originator application priorities and end point identities, the alert message is customized and is presented to one or more appropriate delivery channel servers. The alert message is then delivered to the one or more subscribers.