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,
	2002			2003			2002			2003
Loss before cumulative effect of change in accounting principle	$	(68,598	)	$	(80,831	)	$	(171,991	)	$	(147,812	)
Dividends on preferred stock, net of gains (losses) on purchases of preferred stock		(20,861	)		(20,081	)		(40,966	)		(34,452	)
Loss before cumulative effect of change in accounting principle applicable to common stock for basic and diluted computations		(89,459	)		(100,912	)		(212,957	)		(182,264	)
Cumulative effect of change in accounting principle		—			—			—			(2,035	)
Net loss applicable to common stock for basic and diluted computations	$	(89,459	)	$	(100,912	)	$	(212,957	)	$	(184,299	)
Weighted-average number of common shares outstanding during the period for basic and diluted computations (in thousands)		220,897			215,969			220,159			216,464
Per common share—basic and diluted: Loss before cumulative effect of change in accounting principle	$	(0.41	)	$	(0.47	)	$	(0.97	)	$	(0.84	)
Cumulative effect of change in accounting principle		—			—			—			(0.01	)
Net loss	$	(0.41	)	$	(0.47	)	$	(0.97	)	$	(0.85	)