EXHIBIT 11.1

CROWN CASTLE INTERNATIONAL CORP.

COMPUTATION OF NET LOSS

PER COMMON SHARE

(IN THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS)

	THREE MONTHS ENDED JUNE 30,						SIX MONTHS ENDED JUNE 30,
	2004			2005			2004			2005
Loss from continuing operations	$	(65,888	)	$	(229,798	)	$	(155,527	)	$	(357,060	)
Dividends on preferred stock		(9,332	)		(9,568	)		(19,028	)		(19,221	)
Loss from continuing operations applicable to common stock for basic and diluted computations		(75,220	)		(239,366	)		(174,555	)		(376,281	)
Income from discontinued operations		15,108			2,347			28,110			848
Net loss applicable to common stock for basic and diluted computations	$	(60,112	)	$	(237,019	)	$	(146,445	)	$	(375,433	)
Weighted-average number of common shares outstanding during the period for basic and diluted computations (in thousands)		221,853			218,237			220,574			220,919
Per common share—basic and diluted:
Loss from continuing operations	$	(0.34	)	$	(1.10	)	$	(0.79	)	$	(1.70	)
Income from discontinued operations		0.07			.01			0.13			—
Net loss	$	(0.27	)	$	(1.09	)	$	(0.66	)	$	(1.70	)