HomepageContact Us (Popup Window)
Site Map | Search | Phone Directory | Departments | Services
About Us
Palo Verde Nuclear Generating Station
Hazard Mitigation
Community Wildfire Protection Plan
Hazardous Materials LEPC
Emergency Management Department of Maricopa County
Emergency Management Home Page



Community Emergency Notification System (Click to go to registration page)

CENS is the Community Emergency Notification System. The system is designed to rapidly notify an affected area of an emergency by sending a recorded message through the telephone system. CENS uses the 911 database to extract phone numbers determined by the circle or area drawn on the CENS map. CENS launches a prerecorded message to the telephone numbers in the area defined.

Frequently Asked Questions

Will CENS work with cell phones and VoIP phones?

Cell and VoIP phones are not part of the 911 database. You now have the option to register your Cell or VoIP phone with the CENS system. You will only receive CENS notifications based on the address you provide when you register your Cell and or VoIP phone.
How will CENS appear on Caller ID?

Your caller ID will show "REVERSE911CALL" as the caller, with a (480) area code. The CENS system is based in the East Valley, which is why you will see the (480) area code.
How does the system work with answering machines or voice mail?

The system is designed to leave a message on voice mail or an answering machine.
How does CENS handle non-English speaking households and TTY devices?

The message is recorded at your local 911 call center. The dispatcher will record the message in the necessary languages. The system also has TTY capability for the hearing impaired. There is TTY detection equipment that will bypass the voice-recorded portion when a TTY or TDD is detected.
What if the phone is busy when the system calls?

The system is designed to call back if the line is busy or if there is no answer. The system will wait five minutes before a second callback is made.
What happens if a resident moves or a new phone is installed?

Residents that add or change information for a land line phone serviced by Qwest/Century Link, Cox or other local phone companies will have the information updated within the 911 database. Residents that self register their Cell or VoIP phones will need to update their address at the Self Registration Portal.
What will the CENS call tell me?

Each notification call will be different. The primary agency handling the emergency will make the recording you will hear. It is important to follow the instructions on the recording.
Should I call 911 if I need more information?

No, 911 should only be called when you have an emergency. The emergency notification recording will give you instructions to follow.
Who will use CENS?

The CENS program is available to all law enforcement and fire agencies in the Maricopa Region. The Maricopa Region extends from Wickenburg to Apache Junction.
Additional Questions?

Send an email for a prompt response.


Search this Supervisors Site Search Emergency Management

  District Cities Home

Contact Us Contact Us  

SiteMap Sitemap

Maricopa County presents this information as a service to the public. It has made every effort to ensure that the information contained here is accurate. It makes no warranties or guarantees, nor may anyone assume any warranties or guarantees regarding the accuracy or reliability of its content or of other information to which there is a link. Assessing accuracy and reliability of information is the sole responsibility of the user. Maricopa County shall not be liable for errors contained here or for any damages in connection with the use of the information contained here. Maricopa County does not endorse the content found on non-Maricopa County websites accessed via hyperlink. Further, the e-mail address and any other information found here shall not be used for unsolicited advertising, marketing, or other commercial purposes.
  Maricopa Home      Site Map      Legal Information      Privacy/Security Policies
Maricopa County Home Page
Maricopa County || 301 W. Jefferson St. || Phoenix, AZ 85003