https://www.youtube.com/watch?v=X9_iasZxm18
https://web.archive.org/web/20131021051847/http://news.cnet.com/8301-1035_3-57608369-94/at-t-in-$4.85b-cell-tower-deal-with-crown-castle/
AT&T; in $4.85B cell tower deal with Crown Castle | Mobile - CNET News
Wireless infrastructure provider will have the option of purchasing about 9,100 towers after an average lease term of 28 years. Read this article by Steven Musil on CNET News.
https://web.archive.org/web/20131021051847/http://news.cnet.com/8301-1035_3-57608369-94/at-t-in-$4.85b-cell-tower-deal-with-crown-castle/