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美国MCI公司达成了一些协议,即从四个铁路系统中另外提供3000英里的通道用路,从而使其富有潜力的光纤线路系统在美国大陆增加到超过7300英里。所利用的通道用路从太平洋联合系统得到2300英里,从伊利诺斯中心海湾铁路得到375英里,从波士顿和缅因公司得到300英两,以及从密尔沃基、圣保罗和太平洋铁路公司得到78英里。由于向太平洋联合系统购买使用权,使得MCI能将其光缆系统敷设到密苏里州、堪萨斯州、阿肯色州、得克萨斯州和路易斯安
U.S. MCI reached an agreement to provide an additional 3,000 miles of access from four railroad systems to increase its potential fiber-optic line system to over 7,300 miles in the continental United States. The access routes used were 2,300 miles from the Pacific Combined System, 375 miles from the Gulf Coast Illinois Center, 300 miles from Boston and Maine, and 78 miles from Milwaukee, São Paulo and Pacific Rails. MCI was able to route its fiber optic cable systems to Missouri, Kansas, Arkansas, Texas, and Louisiana thanks to the acquisition of usage rights from Pacific Union Systems