If you want to unsubscribe from any Mobile Alert, simply reply stop to the message. You can also go to the following locations to unsubscribe or opt-out of a mobile alert:
On Sprint.com select Digital Lounge > Personalization. Under Quick
Links simply click Get Mobile Alerts. You must be signed in
to Sprint.com to access the alerts page.
On the wireless web go to the Sprint Web and select Messaging
> Mobile Alerts.