Register your cell phone with the Community Emergency Notification System. A community emergency notification system lets us contact you in the case of an emergency. This is sometimes referred to as “Reverse 911”. If there is an emergency situation that we need to notify you about, we will program our software to contact the telephone (landline) numbers and cell phone numbers in the area that the emergency affects. The Maricopa County CENS registration can be found at https://maricoparegion911.onthealert.com/Terms/Index/?ReturnUrl=%2f. If you live in Yavapai County, you can register for their Community Notification System at http://www.ycsoaz.gov/community/emergency-preparedness/ens/. Locally, we have notified residents about evacuations during monsoon storms, and about unsafe situations near their residences using this system.