CHICAGO--(BUSINESS WIRE)--Fitch Ratings has affirmed the Crown Castle Towers LLC senior secured tower revenue notes, series 2010-2, 2010-3, 2010-5, 2010-6, 2015-1 and 2015-2 as follows: --$350,000,000 class 2010-2 C-2017 at 'Asf'; Outlook Stable; --$1,250,000,000 class 2010-3 C-2020 at 'Asf'; Outlook Stable; --$300,000,000 class 2010-5 C-2017 at 'Asf'; Outlook Stable; --$1,000,000,000 class 2010-6 C-2020 at 'Asf'; Outlook Stable; --$300,000,000 class 2015-1 C-2022 'Asf'; Outlook Stable; --$700,