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 SEPTEMBER 30,						NINE MONTHS ENDED SEPTEMBER 30,
	2002			2003			2002			2003
Loss before cumulative effect of change in accounting principle	$	(65,628	)	$	(99,678	)	$	(237,619	)	$	(247,490	)
Dividends on preferred stock, net of gains (losses) on purchases of preferred stock		29,932			(9,496	)		(11,034	)		(43,948	)
Loss before cumulative effect of change in accounting principle applicable to common stock for basic and diluted computations		(35,696	)		(109,174	)		(248,653	)		(291,438	)
Cumulative effect of change in accounting principle		—			—			—			(2,035	)
Net loss applicable to common stock for basic and diluted computations	$	(35,696	)	$	(109,174	)	$	(248,653	)	$	(293,473	)
Weighted-average number of common shares outstanding during the period for basic and diluted computations (in thousands)		216,656			216,621			218,991			216,516
Per common share—basic and diluted:
Loss before cumulative effect of change in accounting principle	$	(0.16	)	$	(0.50	)	$	(1.14	)	$	(1.35	)
Cumulative effect of change in accounting principle		—			—			—			(0.01	)
Net loss	$	(0.16	)	$	(0.50	)	$	(1.14	)	$	(1.36	)