Brazil uses six frequency bands for 2G mobile services, and another five bands for 3G services. The country has been carved into ten areas for 2G licensing and into eleven and fifteen areas for 3G licensing. Through spectrum allocations and auctions – as well as acquisitions – Brazil has four mobile companies (TIM, Vivo, Claro, and Oi) that hold nationwide licences for 2G mobile services. A highly successful 3G auction awarded 36 licences, allowing all major mobile operators to offer 3G nationwide. This report provides background information for the more regularly updated Brazil - Mobile Market - Overview, Statistics & Forecasts. It covers details on the history and development of Brazil’s spectrum regulations and spectrum auctions, as well as frequency bands and operators/regions for each band.