DHAHRAN: The Unified Security Operations Center in the Eastern Province is hosting an introductory and awareness exhibition at the Dhahran Complex until Oct. 26. The exhibition aims to familiarize citizens, residents, and visitors with the security and humanitarian services offered by the center through the unified 911 emergency number. The center serves 13 governorates, including the city of Dammam, by consolidating the operations of 29 different control rooms under one roof, all accessible through the single emergency number 911.