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| company_slogan = | foundation = 1995 | location = Boston, Massachusetts, U.S. | key_people = James D. Taiclet, Jr., Chairman, CEO, & President | num_employees = 1,124 (2007) | industry = Diversified Communication Services | products = | revenue = |}} | operating_income = |}} | net_income = |}} | assets = |}} | equity = |}} | homepage = (www.americantower.com ) }} American Tower Corporation is a publicly held company. Owner and operator of wireless and broadcast communications sites in several countries. American Tower is headquartered in Boston, Massachusetts and has local offices worldwide. The company was formed in 1995 as a unit of American Radio Systems, and was spun off from that company in 1998 when that company merged with CBS Corporation. Following the merger, American Tower began international expansion by establishing operations in Mexico in 1998 and Brazil in 1999. The company is structured as a real estate investment trust. In 2005, American Tower merged with SpectraSite Communications, Inc., expanding its global portfolio to over 22,000 owned communications sites including over 21,000 wireless towers, 400 broadcast towers and 100 in-building DAS (Distributed Antenna System) sites. The merger further established American Tower’s position as one of the largest tower owner and operators in North America. Between 2007 and 2012, American Tower’s international growth continued with operations in India, Peru, Chile, Colombia, South Africa, Ghana and Uganda. In 2013, American Tower acquired Global Tower Partners. This acquisition added sites to their U.S. portfolio and added operations in Costa Rica and Panama. Currently American Tower owns and operates over 67,000 sites in 13 countries. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「American Tower Corporation」の詳細全文を読む スポンサード リンク
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