Telefonica, one of the top 5 global telcos, is using MongoDB to bring rich services to market faster than ever before. It offers a variety of mobile and fixed products, storing massive volumes of customer data in disparate systems. It needed to aggregate and mobilize that information, such as user data, preferences, and other metadata. Using Oracle database, it took 7 developers, multiple iterations and 14 months to build a system that just didn't perform. Using MongoDB, a team of 3 developers built a user data management system in 3 months, which now powers both legacy and new services across the globe. MongoDB helps Telefonica be more agile, save money and drive new revenues streams, and Telefonica is now looking for all the other places it can replace relational technologies with MongoDB.