Iridium Communications Inc. is a commercial provider of communications services. The Company is engaged in providing mobile voice and data communications services using a constellation of orbiting satellites. It provides voice and data communications services to businesses, the United States and foreign governments, non-governmental organizations, and consumers via its satellite network, which has an architecture of 66 operational satellites with in-orbit spares and related ground infrastructure. It utilizes an interlinked mesh architecture to route traffic across its satellite constellation using radio frequency crosslinks between satellites. It serves market, such as emergency services, maritime, aviation, government, utilities, oil and gas, mining, recreation, forestry, heavy equipment, construction, railways and other transportation. Its products include Satellite Handsets and Iridium GO!, Broadband Data Devices, Voice and Data Modems and Internet of Things Data Devices.