Allstream Schedules First Quarter 2004 Results Teleconference & Webcast TORONTO, May 12 /PRNewswire-FirstCall/ -- Allstream Inc. (TSX: ALR.A, ALR.B; NASDAQ: ALLSA, ALLSB) has scheduled a teleconference call and webcast to discuss first quarter 2004 financial and operating results. ------------------------------------------------------------------------- DATE: Wednesday May 12, 2004 TIME: 8:30 a.m. Eastern ACCESS NUMBER: 1.416.640.1907 REBROADCAST: 1.416.640.1917, pass code 21046906 (followed by the number sign) WEBCAST: http://www.allstream.com/ ------------------------------------------------------------------------- To participate in the teleconference, please call the access number ten minutes prior to the scheduled start time and request Allstream's first quarter earnings teleconference. A live webcast and a rebroadcast of the teleconference will be available on the company's website http://www.allstream.com/. About Allstream Allstream is a leading communications solutions provider with a world- class portfolio of Connectivity, Infrastructure Management and IT Services. Focused on the Business market, Allstream collaborates with customers to create tailored solutions that meet their unique needs and help them compete more effectively. Spanning more than 18,800 kilometres, Allstream has an extensive broadband fibre-optic network and the greatest reach of any competitive communications solutions provider in Canada, and provides international connections through strategic partnerships and interconnection agreements with other international service providers. Allstream is a public company with its stock traded on the Toronto Stock Exchange under the symbols ALR.A and ALR.B and the NASDAQ National Market system under the symbols ALLSA and ALLSB. Visit Allstream's website, http://www.allstream.com/ for more information. DATASOURCE: Allstream Inc. CONTACT: Media: May Chong, (416) 345-2342, ; Investors and Analysts: Brock Robertson, (416) 345-3125, ; Dan Coombes, (416) 345-2326,

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