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Exhibit 11.1

ALLEGIANCE TELECOM, INC.

COMPUTATION OF PER SHARE LOSS

THREE MONTHS ENDED JUNE 30, 2002

(Dollars in thousands, except per share amounts)

		Number of Shares		Percent Outstanding		Equivalent Shares
Prior to Initial Public Offering
	1997 Common Stock Offering	639		100.00	%		639
After Initial Public Offering
	1998 Common Stock Offering	15,000,000		100.00	%		15,000,000
	Preferred Stock Converted to Common Stock	60,511,692		100.00	%		60,511,692
	1999 Common Stock Offering	21,041,100		100.00	%		21,041,100
	2000 Common Stock Offering	10,703,109		100.00	%		10,703,109
	Cash in Lieu of Stock Split	(577	)	100.00	%		(577	)
	Treasury Shares	(327,495	)	100.00	%		(327,495	)
	Warrants Exercised	765,833		100.00	%		765,833
	Stock Options Exercised	1,362,257		99.83	%		1,359,903
	Employee Stock Discount Purchase Plan Shares Issued	1,765,706		88.19	%		1,557,222
	Common Stock Issued for Business Acquisitions	5,558,747		100.00	%		5,558,747
	Restricted Shares Issued to Employees	6,381,120		13.26	%		846,115
WEIGHTED AVERAGE SHARES OUTSTANDING							117,016,288
NET LOSS APPLICABLE TO COMMON STOCK						$	(226,815,000	)
NET LOSS PER SHARE, BASIC AND DILUTED						$	(1.94	)

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ALLEGIANCE TELECOM, INC. COMPUTATION OF PER SHARE LOSS THREE MONTHS ENDED JUNE 30, 2002 (Dollars in thousands, except per share amounts)