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	)