Aim: Emergency medical services (EMS) must be delivered continuously and quickly in order to treat patients as soon as possible. The purpose of this study was to assess the activities and response times of the EMS in Ankara over the last five years.Material and Methods: Database of the Ministry of Health, Emergency Health Automation System (ASOS), was used to obtain data for the past five years (01.01.2015 -31.12.2019). Reasons and outcomes of the calls, response times, and the number of EMS personnel and ambulances were evaluated in the study.Results: This study showed that the total number of people who received treatment from EMS in Ankara over the past five years is 2,036,734. The number of cases was 359,686 (mean response time = 7 minutes and 20 seconds) in 2015, 391,057 (mean response time = 6 minutes and 34 seconds) in 2016, 417,155 (mean response time = 6 minutes and 41 seconds) in 2017, 421,452 (mean response time = 6 minutes and 9 seconds) in 2018, and 447,384 (mean response time = 6 minutes and 12 seconds) in 2019. Emergency calls were mostly for medical reasons, followed by health measures, whereas the least common reason of emergency calls was the need for transfer to the morgue. Conclusion:In the provision of EMS, early intervention can save lives. EMS has a proper coordination system and a continuously increasing number of ambulances and personnel, which provides short EMS response times despite the expanding population and increasing number of cases over the years.