FORM 6-K

                      SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                            Report of Foreign Issuer


                       Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


                          For the month of January 2005


                             COLT TELECOM GROUP plc
                 (Translation of Registrant's Name into English)


                                 Beaufort House
                              15 St. Botolph Street
                                     London
                                    EC3A 7QN
                                     England

                       _________________________________
                    (Address of Principal Executive Offices)



(Indicate by check mark whether the Registrant files or will file annual
reports under cover of Form 20-F or Form 40-F.)


                        Form 20-F..X...    Form 40-F.....



(Indicate by check mark whether the Registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934)


                              Yes .....    No ..X...


(If "Yes" is marked, indicate below the file number assigned to the Registrant
in connection with Rule 12g3-2(b): 82- ________)



This Form 6-K shall be deemed to be incorporated by reference in the
Registrant's Registration Statement on Form F-3 (Reg. No.333-05972), in the
Registrant's Registration Statement on Form S-8 (Reg. No.333-8362)


Colt Telecom Group PLC
24 January 2005


                         ISIN 196877AC8 & US196877AC85
               GBP50 million 10.125% Senior Notes due November 2007

                         ISIN 196877AD6 & DE0001962108
              DM150 million 8.875% Senior Notes due November 2007

COLT Telecom Group plc (COLT) a leading pan-European provider of business
communications solutions and services, confirms as announced on 14 December
2004 that redemption of the above bonds took place on 21 January 2005.

For further information contact:

John Doherty
Director Corporate Communications
Email: jdoherty@colt-telecom.com
Tel: +44 20 7390 3681

Gill Maclean
Head of Corporate Communications
Email: gill.maclean@colt-telecom.com
Tel: +44 20 7863 5314







                                     SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this Current Report on Form-6K to be signed on its
behalf by undersigned, thereunto duly authorized.



Date: 24 January, 2005                             COLT Telecom Group plc



                                                     By: ___Jane Forrest___


                                                     Jane Forrest
                                                     Company Secretary