COLT Telecom Group plc: Holding(s) in Company


LONDON, Aug. 17, 2004 (PRIMEZONE) -- SCHEDULE 10

NOTIFICATION OF MAJOR INTERESTS IN SHARES

All relevant boxes should be completed in block capital letters.

1. Name of company

COLT TELECOM GROUP PLC

2. Name of shareholder having a major interest

Colt Inc..

3. Please state whether notification indicates that it is in respect of holding of the shareholder named in 2 above or in respect of a non-beneficial interest or in the case of an individual holder if it is a holding of that person's spouse or children under the age of 18

4. Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them

5. Number of shares/amount of stock acquired

200,000 OPEN MARKET PURCHASE AND 387,577 TRANSFER FROM THE COLT INC. 2001 ANNUITY TRUST

6. Percentage of issued class (any treasury shares held by company should not be taken into account when calculating percentage)

0.039%

7. Number of shares/ amount of stock disposed

8. Percentage of issued class (any treasury shares held by company should not be taken into account when calculating percentage)

9. Class of security

ORDINARY

10. Date of transaction

16TH AUGUST 2004

11. Date Company Informed

17TH AUGUST 2004

12. Total holding following this notification

76,128,556

13. Total percentage holding of issued class following this notification (any treasury shares held by company should not be taken into account when calculating percentage)

5.039%

14. Any additional information

15. Name of contact and telephone number for queries

ADRIAN GOODENOUGH 020 7947 1677

16. Name and signature of authorised company official RESPONSIBLE FOR MAKING THIS NOTIFICATION

ADRIAN GOODENOUGH

Date of notification 17th August 2004



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

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