RNS Number:1577T
Colt Telecom Group PLC
11 December 2003


11 December 2003

                     MARK JENKINS TO RESIGN FROM COLT BOARD

COLT Telecom Group plc (COLT) announced today the resignation of Mark Jenkins as
Company Secretary and a director of COLT with effect from 27 February 2004 in
order to take up a new position.

COLT Chairman Barry Bateman said:

"On behalf of the Board I would like to thank Mark for his contribution to
COLT's development over the past five years. We wish him well for the future."

Mark Jenkins joined COLT in 1998 as Group Director Legal Services and Secretary.
Prior to joining COLT he held senior legal positions at a number of UK
companies. He qualified as a barrister in 1981 and practised at the bar from
1981 to 1985.


About COLT

COLT Telecom Group plc is a leading pan-European provider of business
communications services. COLT has over 17,000 network services and data centre
solutions customers. The company owns an integrated 20,000 kilometre network
that directly connects 32 major cities in 13 countries augmented with a further
42 points of presence across Europe and 11 Data 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 Corporate Communications Tel: +44 20 7390 3681
Gill Maclean, Head of Corporate Communications Tel: +44 20 7863 5314


                      This information is provided by RNS
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