EXHIBIT 14.1 Consent of Independent Accountants We hereby consent to the incorporation by reference in the Registration Statement on Form F-3 (Registration No. 333-05972) of COLT Telecom Group plc and in the Registration Statement on Form S-8 (Registration No. 333-8362) of COLT Telecom Group plc, of our report dated 24 February 2004 relating to the consolidated financial statements and financial statement schedules, which is incorporated in this Annual Report on Form 20-F. /s/ PricewaterhouseCoopers LLP PricewaterhouseCoopers LLP Chartered Accountants and Registered Auditors London England Dated: 30 April 2004