Mark Identification

ALLEGIANCETELECOM,INC.

Serial Number

75488245

Filing Date

May 20, 1998

Registration Date

Jun 18, 2002

Trademark by

XO COMMUNICATIONS LLC

Classification Information

TELECOMMUNICATIONS SERVICES, NAMELY, ELECTRONIC TRANSMISSION OF VOICE, VIDEO AND DATA FOR OTHERS, NOT INCLUDING HOSPITALS AND OTHER HEALTHCARE PROVIDERS; PROVIDING MULTIPLE USER ACCESS TO A GLOBAL COMPUTER INFORMATION NETWORK FOR THE TRANSFER AND DISSEMINATION OF A WIDE RANGE OF INFORMATION FOR OTHERS, NOT INCLUDING HOSPITALS AND OTHER HEALTHCARE PROVIDERS

Telecommunications

DESIGN OF TELECOMMUNICATIONS SYSTEMS FOR OTHERS NOT INCLUDING HOSPITALS AND HEALTHCARE PROVIDERS

Computer and Scientific