RNS Number:6697P
Colt Telecom Group PLC
11 September 2003




                        Disclosure of Directors Details

This announcement is made further to the announcement made on 29 August 2003
announcing Mr. Andreas Barth's appointment as a non-executive director of COLT
Telecom Group plc.

In accordance with Chapter 16 of the Listing Rules the following details are
disclosed. Mr. Andreas Barth is currently a senior advisor to General Atlantic
Partners, a private equity investment firm, Chairman of the board of BOG
Management GmbH and a member of the supervisory board of TDS
Informationstechnologie AG. From 1991 to 1999 he was Senior Vice President and
General Manager Europe, Middle East and Africa with Compaq Computer Corporation
and had previously held management positions at Thomson-CSF, Texas Instruments
and Ford.

Mr. Barth was a director of IXOS AG, a software company based in Munich between
1997 to 1998. He was also chairman of the supervisory boards of Netembassy AG
and Syntion AG both internet start-up companies based in Munich, resigning in
2001 and 2002 respectively.

He has held no other directorships in any other publicly quoted Company at any
time in the previous five years and there is no further information to be
disclosed in relation to paragraph 6. F. 2(b) to (g).

ABOUT COLT

COLT Telecom Group plc is a leading pan-European provider of business
communications services. COLT has over 17,000 network services and eBusiness
customers. The company owns an integrated 20,000 kilometre network that 
directly connects over 9,000 buildings in 32 major cities in 13 countries 
augmented with a further 42 points of presence across Europe and 11 Internet 
Solution Centres. COLT supplies customers across the full spectrum of industry, 
service and government sectors with unrivalled end-to-end network security, 
reliability and service.

COLT Telecom Group plc is listed on the London Stock Exchange (CTM.L) and 
NASDAQ (COLT). Information about COLT and its products and services can be 
found on the web at www.colt.net.

CONTACT

John Doherty

Director Investor Relations
Tel: +44 20 7390 3681
Email: jdoherty@colt-telecom.com






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