Effective September 5, 2017, the Board of Directors of Crown Castle International Corp. designated James D. Young, the company's previous Senior Vice President and Chief Operating Officer, to lead the company's fiber solutions activities and appointed him as Senior Vice President and Chief Operating Officer-Fiber. In addition, the Board appointed Robert C. Ackerman as Senior Vice President and Chief Operating Officer - Towers and Small Cells, effective September 5, 2017. Mr. Young and Mr. Ackerman report to Jay Brown, Crown Castle’s Chief Executive Officer. Mr. Young joined Crown Castle in October 2005 and has served as Senior Vice President and Chief Operating Officer since 2009. Mr. Ackerman, has served as Area President - West Area of the company's operating subsidiaries since February 2011. Prior to that time and since October 2002, he acted as Area President – East Area of the company’s operating subsidiaries. Mr. Ackerman joined the Company in August 1998.