RIYADH: The National Center for Security Operations received almost 2.5 million calls during Ramadan via the unified emergency number 911 in Riyadh, Makkah and the Eastern Province. All of the calls were transferred to the relevant authorities by specialist staff operating around the clock and providing the service in several languages. The center received just over 1 million calls from Riyadh, 987,470 from Makkah and 489,470 from the Eastern Province.