Holding(s) in Company

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Cable and Wireless plc

2. Reason for the notification  (please tick the appropriate box or boxes)

An acquisition or disposal of voting rights 

X

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

Other (please specify):___________________________________________

3. Full name of person(s) subject to the notification obligation:

Credit Suisse Securities (Europe) Limited

4. Full name of shareholder(s) (if different from 3.):

Credit Suisse Securities (Europe) Limited, Credit Suisse International

5. Date of the transaction (and date on which the threshold is crossed or reached if different):

11 June 2008

6. Date on which issuer notified:

13 June 2008

7. Threshold(s) that is/are crossed or reached:

4%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares 

 if possible using the ISIN CODE

Situation previous to the Triggering transaction 

Resulting situation after the triggering transaction

Number of Shares 

Number of Voting Rights viii

Number of shares 

Number of voting rights ix

% of voting rights

Direct

Direct x

Indirect xi

Direct

Indirect

GB0001625572

92,699,086

92,699,086

89,196,737

79,196,737

n/a

3.60%

n/a

B: Financial Instruments

Resulting situation after the triggering transaction xii

Type of financial instrument 

Expiration date xiii

Exercise/ Conversion Period/ Date xiv 

Number of voting rights that may be acquired if the instrument is exercised/ converted. 

% of voting rights

Option

Dec 18 2009

1,500,000

0.06

Option

Dec 19 2008

1,000,000

0.04

Option

June 20 2008

5,000,000

0.20

Total (A+B)

Number of voting rights

% of voting rights

96,696,737

3.91%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable xv:

Credit Suisse Securities (Europe) Limited and Credit Suisse International are a division of Credit Suisse ("CSIBD"), which is part of the Credit Suisse Group ("CSG"). CSIBD is a segregated business unit within CSG with an independent management structure and exercises its voting rights independently from other divisions of CSG.

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

 Catriona Fletcher

15. Contact telephone number:

 +44 (0)20 7315 4660

A: Identity of the person or legal entity subject to the notification obligation

Full name (including legal form for legal entities)

Credit Suisse Securities (Europe) Ltd

Contact address (registered office for legal entities)

One Cabot Square, London E14 4QJ

Phone number 

020 7888 5416

Other useful information (at least legal representative for legal persons)

Simon Crawley

B:  Identity of the notifier, if applicable xvii

Full name 

 Cable and Wireless plc

Contact address 

3rd Floor, 26 Red Lion Square, 

London, WC1R 4HQ

Phone number 

020 7315 4660

Other useful information (e.g. functional relationship with the person or legal entity subject to the notification obligation)

C: Additional information