EXHIBIT 11

CROWN CASTLE INTERNATIONAL CORP.

COMPUTATION OF NET INCOME (LOSS)

PER COMMON SHARE

(IN THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS)

		Years Ended December 31, 2003
		2001				2002				2003				2004				2005
		(As restated)				(As restated)				(As restated)				(As restated)
Loss from continuing operations before cumulative effect of change in accounting principle		$	(351,449	)		$	(323,672	)		$	(455,490	)		$	(301,581	)		$	(393,354	)
Dividends on preferred stock			(79,028	)			(79,786	)			(54,294	)			(38,618	)			(37,354	)
Gains (losses) on purchases of preferred stock			—				95,809				(1,603	)			—				(12,002	)
Loss from continuing operations before cumulative effect of change in accounting principle applicable to common stock for basic and diluted computations			(430,477	)			(307,649	)			(511,387	)			(340,199	)			(442,710	)
Income (loss) from discontinued operations			(45,158	)			7,340				4,430				534,688				848
Cumulative effect of change in accounting principle			—				—				(551	)			—				(9,031	)
Net income (loss) applicable to common stock for basic and diluted computations		$	(475,635	)		$	(300,309	)		$	(507,508	)		$	194,489			$	(450,893	)
Weighted-average number of common shares outstanding during the period for basic and diluted computations (in thousands)			214,246				218,028				216,947				221,693				217,759
Per common share—basic and diluted:
Loss from continuing operations before cumulative effect of change in accounting principle		$	(2.01	)		$	(1.41	)		$	(2.35	)		$	(1.54	)		$	(2.03	)
Income (loss) from discontinued operations			(0.21	)			0.03				0.02				2.42				—
Cumulative effect of change in accounting principle			—				—				(0.01	)			—				(0.04	)
Net income (loss)		$	(2.22	)		$	(1.38	)		$	(2.34	)		$	0.88			$	(2.07	)