Blocklisting Interim Review

RNS Number:5658Q
Colt Telecom Group PLC
06 October 2003


                                   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: 14 April 2003 to 6 October 2003

4. Number and class of share(s) (amount of stock/debt security) not issued 
   under scheme:

4,350,073

5. Number of Shares issued/allotted under scheme during period:

705,500

6. Balance under scheme not yet issued/allotted at end of period:

5,055,573

7. Number and class of share(s) (amount of stock/debt securities) originally 
   listed and the date of admission:

8,500,000 Ordinary Shares of 2.5p each listed on 14 April 2000

Please confirm total number of shares in issue at the end of the period in order
for us to update our records.

1,508,430,695

Contact for queries:

Name: Mark A. Jenkins
      Telephone: [phone]

Address: COLT Telecom Group plc
         Beaufort House
         15 St. Botolph Street
         London  EC3A 7QN

Person making return

Name:   Mark A. Jenkins, Company Secretary




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

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