June 15, 2016 City transitioning to new phone system ADA – The City of Ada is in the process of updating the phone system. In order to provide better service to the public, all city offices will utilize a new phone system beginning Tuesday, June 21. From that date forward, when calling certain direct numbers, you will be guided to an auto attendant to assist you. Follow the prompts to reach the proper department/person. The main number to the City of Ada is 580.436.6300. By pressing 0 if needed, the receptionist will be happy to help you. As always, in the event of an emergency, please call 911. For more information about the City of Ada, visit our Web site at www.adaok.com.