Zayo's offer for the fiber business may be valued at more than $8 billion. The deal is not certain and Crown Castle ( NYSE: CCI ) may decide to keep the business, according to the report.

Crown Castle (NYSE:CCI) will sell all of its fiber segment in two transactions to an EQT fund and Zayo Group Holdings for a total of $8.5B and use the proceeds to repay debt and to buy back stock ...