EXHIBIT 12
CROWN CASTLE INTERNATIONAL CORP.
COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES AND
EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS
(DOLLARS IN THOUSANDS)

| Years Ended December 31,
| 2013 |  | 2012 |  | 2011 |  | 2010 |  | 2009
Computation of earnings: |  |  |  |  |  |  |  |  |
Income (loss) before income taxes | $ | 292,529 |  |  | $ | 100,827 |  |  | $ | 179,807 |  |  | $ | (338,105 | ) |  | $ | (190,523 | )
Add: |  |  |  |  |  |  |  |  |
Fixed charges (as computed below) | 762,657 |  |  | 727,472 |  |  | 620,871 |  |  | 600,295 |  |  | 551,288 |
Subtract: |  |  |  |  |  |  |  |  |
Interest capitalized | (1,832 | ) |  | (2,335 | ) |  | (265 | ) |  | — |  |  | — |
| $ | 1,053,354 |  |  | $ | 825,964 |  |  | $ | 800,413 |  |  | $ | 262,190 |  |  | $ | 360,765 |
Computation of fixed charges and combined fixed charges and preferred stock dividends and losses on purchases of preferred stock: |  |  |  |  |  |  |  |  |
Interest expense | $ | 491,041 |  |  | $ | 491,184 |  |  | $ | 404,968 |  |  | $ | 406,222 |  |  | $ | 386,447 |
Amortized premiums, discounts and capitalized expenses related to indebtedness | 98,589 |  |  | 109,860 |  |  | 102,883 |  |  | 84,047 |  |  | 59,435 |
Interest capitalized | 1,832 |  |  | 2,335 |  |  | 265 |  |  | — |  |  | — |
Interest component of operating lease expense | 171,195 |  |  | 124,093 |  |  | 112,755 |  |  | 110,026 |  |  | 105,406 |
Fixed charges | 762,657 |  |  | 727,472 |  |  | 620,871 |  |  | 600,295 |  |  | 551,288 |
Dividends on preferred stock and losses on purchases of preferred stock | 11,363 |  |  | 2,629 |  |  | 22,940 |  |  | 20,806 |  |  | 20,806 |
Combined fixed charges and preferred stock dividends and losses on purchases of preferred stock | $ | 774,020 |  |  | $ | 730,101 |  |  | $ | 643,811 |  |  | $ | 621,101 |  |  | $ | 572,094 |
Ratio of earnings to fixed charges | 1.4 |  |  | 1.1 |  |  | 1.3 |  |  | — |  |  | — |
(Deficiency) excess of earnings to cover fixed charges | $ | 290,697 |  |  | $ | 98,492 |  |  | $ | 179,542 |  |  | $ | (338,105 | ) |  | $ | (190,523 | )
Ratio of earnings to combined fixed charges and preferred stock dividends and losses on purchases of preferred stock | 1.4 |  |  | 1.1 |  |  | 1.2 |  |  | — |  |  | — |
(Deficiency) excess of earnings to cover combined fixed charges and preferred stock dividends and losses on purchases of preferred stock | $ | 279,334 |  |  | $ | 95,863 |  |  | $ | 156,602 |  |  | $ | (358,911 | ) |  | $ | (211,329 | )