COLT Telecom Group plc -- Blocklisting Interim Review


LONDON, Oct. 18, 2004 (PRIMEZONE) --


                           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 COLT Telecom Group Share Plan

3. Period of return: From 15.04.2004 to 14.10.2004

4. Number and class of share(s) (amount of stock/debt security) 1,971,113 not issued under scheme

5. Number of shares issued/allotted under scheme during period: 56,892

6. Balance under scheme not yet issued/allotted at end of 1,914,221 period

7. Number and class of share(s) (amount of stock/debt securities) 8,500,000 originally listed and the date of admission; 14.04.2000

Please confirm total number of shares in issue at the end of the period in order for us to update our records 1,511,025,746


                      This information is provided by RNS
            The company news service from the London Stock Exchange

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Contact for queries:                     Address: Beaufort House
Name: Adrian Goodenough                  15 St. Botolph Street
Telephone: 020 7947 1677                 London EC3A 7QN
Person making return
Name: Adrian Goodenough
Position:
Signature: