COLT Telecom Group plc: Schedule 5 Block Listing Six Monthly Return


LONDON, April 22, 2004 (PRIMEZONE) -- COLT Telecom Group plc:

SCHEDULE 5

BLOCK LISTING SIX MONTHLY RETURN

To: Listing Applications UK Listing Authority Financial Services Authority 25, The North Colonnade Canary Wharf London, E14 5HS

Please ensure the entries on this return are typed

1. Name of company COLT Telecom Group plc

2. Name of scheme 2% Senior Convertible Notes due 2005 and 2006

3. Period of return: From 22.10.2003 to 21.04.2004

4. Number and class of share(s) (amount of stock/debt security) not issued under scheme 23,083,311

5. Number of shares issued/allotted under scheme during period: 0

6. Balance under scheme not yet issued/allotted at end of period 23,083,311

7. Number and class of share(s) (amount of stock/debt 35,646,824 securities) originally listed and the date of admission; 22.10.1999

Please confirm total number of shares in issue at the end of the period in order for us to update our records 1,510,845,716

Person making return

Name: Adrian Goodenough

Position:

Signature:


-0-
Contact for queries:                  Address: Beaufort House
Name: Adrian Goodenough                        15 St. Botolph Street
      Telephone: 020 7947 1677                 London EC3A 7QN