Holding(s) in Company

RNS Number:8145O
Colt Telecom Group PLC
19 August 2003



                   Notification of interests in shares under

                     Section 198 of the Companies act 1985





 1. *Name of Company

    COLT Telecom Group plc

 2. *Name of Shareholder having a major interest

    Notification is in respect of indirect interests

 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

    Notification is in respect of a non-beneficial interest held by AMVESCAP
    Plc. either directly or through its subsidiary companies

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

    AMVESCAP Plc

 5. *Number of shares/amount of stock acquired

    N/A

 6. *Percentage of issued class

    N/A

 7. *Number of shares/amount of stock disposed

    882,254

 8. *Percentage of issued Class

    Less than 1%

 9. *Class of security

    Ordinary Shares of 2.5p

10. *Date of Transaction

    5th August 2003

11. *Date Company informed

    6th August 2003

12. *Total holding following this notification

    150,163,486

13. *Total percentage holding of issued class following this notification

    9.95%

14. *Any additional information

    Delay in notification caused by requirement to seek clarification.

15. *Name of contact and telephone number for queries

    John Doherty: 0207 390 3681

16. *Name and signature of authorised company official responsible for making
    this notification


Mark A. Jenkins
Company Secretary
Date of Notification: 19th August 2003







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

END
HOLEAEPNFFPDEFE