On Thursday, October 17, 2019, Orange County residents will receive a Test Emergency Alert to their mobile device. The test will replicate a large scale, multi-jurisdictional emergency requiring thousands of numbers to be called simultaneously across Orange County’s entire region. This is the ninth annual regional test of the system. It will include most Orange County cities as well as the County’s unincorporated areas.The distinctive feature of AlertOC is the ability for individuals to register multiple contact methods and addresses. Registrations of cell phone and alternate numbers dramatically increase the ability to reach the greatest number of community members within minutes. This enables landlines, cell phones and email addresses to be incorporated into a single notification system.Residents can do their part to prepare for emergencies by registering for AlertOC. The time is now to sign up and include cell phone numbers and e-mail addresses to be a part of the regional test. For more information or to register alternate phone numbers or e-mail addresses, visit AlertOC.com.