上月11日，美国第三大电信公司—西南贝尔电信公司（SBC）宣布以620亿美元收购在美电信业排名第七的亚美达科公司（Ameritech）。成为美国电信史上数额最大的并购案。1984年，AT＆T改组后七家地区电话控股公司即“贝尔七兄弟”：西南贝尔（SBC）、太平洋贝尔（PacificTelesys） On the 11th of last month, Southwest Bell Telecommunications Company (SBC), the third largest telecommunications company in the United States, announced the acquisition of Ameritech, the seventh largest telecommunications company in the United States, for $ 62 billion. Become the largest U.S. telecommunications history M & A. In 1984, seven regional telephone holding companies after AT & T’s reorganization were Bell Belt Seven: SBC, Pacific Telesys,