Santa Cruz Regional 9-1-1, which dispatches emergency police, fire, and ambulances in Santa Cruz County, has a service. In cases of imminent threat, it has the capability to make reverse 911 calls to cell phones. In the case of an imminent threat, the Santa Cruz Regional 9-1-1 would make an automated call to cell phones registered to threatened addresses. A sample message might be “At 9:30 on Monday morning, a mandatory evacuation has been ordered for all homes on XYZ Road due to threat from the wildfire. ” To utilize this service, cell phone users must register with the dispatch center: Link to Santa Cruz Region 9-1-1 Registration