Ericsson's Global Network Operations Center (GNOC) in India manages networks on behalf of customers in over 20 countries through end-to-end management of network operations. The GNOC employs over 800 people and manages a total of 100 million subscribers, including billing and charging for 85 million prepaid subscribers. It serves customers spanning more than 20 countries while answering 12 million alarms and resolving 250,000 trouble tickets and 20,000 change requests per month.