1 EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the use in this Form F-1 Registration Statement of our report dated November 12, 1999 (except as to note 10 which is as at December 17, 1999 and note 20 which is as at February 16, 2000) relating to the consolidated financial statements of GT Group Telecom Inc. for the years ended September 30, 1999, 1998 and 1997, which appear in such Registration Statement. We also consent to the reference to us under the heading "Experts" in such Registration Statement. /s/ PRICEWATERHOUSECOOPERS LLP Toronto, Canada September 8, 2000