NII Holdings, Inc. (NII) is a mobile communication service provider that offers communication products and services for people, businesses and communities. The company provides solutions such as contactos Nextel, 3G mobile broadband service, ialarm, Nextel live, content downloads and messaging. It uses iDEN technology which utilizes state-of-the-art packet-based transmission methods to provide instant access, low latency, high voice quality and dependable communications. NII offers digital cellular voice services, data services and wireless Internet access. The company has presence in Canada, Argentina, Brazil, Chile, El Salvador, Mexico and Peru. NII is headquartered in Reston, Virginia, the US.