To unsubscribe, log in to the Nixle website and choose "Settings." There you can adjust which messages you receive and on which device(s) you receive them. You also have the option to eliminate all SMS (text) messages under the Account tab.
Should you wish to completely unsubscribe, simply send an email to Nixle's support team stating your desire to do so. You will be encouraged to review your settings prior to discontinuing service. Even after unsubscribing, you can still view Nixle information in real-time by visiting the Nixle website.
For more information about this Nixle service, visit Nixle's FAQs page.