Rule 8.3 - CABLE & WIRELESS

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              CABLE & WIRELESS
Class of relevant security    ORD GBP0.25
to which the dealings being
disclosed relate (Note 2)
Date of dealing               29 May 2008

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                            Long                     Short

                      Number       (%)         Number       (%)

(1) Relevant      95,785,106      3.84%     5,712,840      0.23%
securities
(2) Derivatives    7,312,798      0.29%    25,328,316      1.02%
(other than
options)
(3) Options and   21,119,983      0.85%     9,640,400      0.39%
agreements to
purchase/sell
Total            124,217,887      4.99%    40,681,556      1.63%


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number              (%)   Number              (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

  (a)  Purchases and sales

Purchase/sale Number of Securities  Price per unit
                                       (GBP)
Purchase      29,788                1.6047
Purchase      158,463               1.6320
Purchase      680                   Transfer
Purchase      10,200                1.5949
Purchase      1,069                 Transfer
Purchase      15,848                1.5870
Purchase      62,681                1.6079
Purchase      9,200                 1.6092
Purchase      8,708                 1.6035
Sale          1,069                 Transfer
Sale          13,275                1.6047
Sale          199,963               1.6016
Sale          15,848                1.5870
Sale          1,045                 1.6064
Sale          55,744                1.6065
Sale          83,190                1.6100
Sale          478,130               1.6021
Sale          2,659                 1.5910
Sale          183,963               1.6012
Sale          79,534                1.6038
Sale          680                   Transfer
Sale          450                   1.6004
Sale          900                   1.6044
Sale          4,000                 1.6141
Sale          61                    1.6051
Sale          4,990                 1.6047

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          12602         1.5978
CFD            Long          183963        1.6012
CFD            Long          199963        1.6015
CFD            Long          478130        1.6021
CFD            Long          79534         1.6037
CFD            Long          18265         1.6046
CFD            Long          77882         1.6048
CFD            Long          56789         1.6064
CFD            Short         10200         1.5948
CFD            Short         8708          1.6035
CFD            Short         29788         1.6047
CFD            Short         62681         1.6078
CFD            Short         9200          1.6091

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry      Option money
e.g. call       selling,          securities to      price     American,       date        paid/received
option          purchasing,       which the option             European etc.               per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)




(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)




4.   OTHER INFORMATION


Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.

None


Is a Supplemental Form 8 attached? (Note 9)                 YES


Date of disclosure                         30 May 2008
Contact name                               Geoff Smith
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk

SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)

OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased   760,000                1.3000           AMER           18/12/2009
Option            Purchased   -48,200                1.4688           EURO           27/08/2008
Option            Purchased   1,000                  160.0000         EURO           19/12/2008
Option            Purchased   1,000                  160.0000         EURO           19/12/2008
Option            Purchased   48,200                 1.4688           EURO           27/08/2008
Option            Purchased   48,200                 1.6646           EURO           27/08/2008
Option            Purchased   177,583                1.7518           EURO           06/06/2008
Option            Purchased   272,000                1.3239           EURO           11/07/2008
Option            Purchased   272,000                1.5004           EURO           11/07/2008
Option            Purchased   380,000                1.3000           AMER           18/12/2009
Option            Purchased   380,000                1.8000           AMER           18/12/2009
Option            Purchased   -48,200                1.6646           EURO           27/08/2008
Option            Purchased   760,000                1.3000           AMER           18/12/2009
Option            Purchased   -272,000               1.3239           EURO           11/07/2008
Option            Purchased   1,045,000              1.8000           AMER           18/12/2009
Option            Purchased   1,500,000              1.1500           AMER           19/12/2008
Option            Purchased   5,000,000              1.1000           AMER           19/12/2008
Option            Purchased   10,000,000             1.7000           AMER           18/12/2009
Option            Purchased   -3,000,000             1.0000           AMER           19/12/2008
Option            Purchased   -2,000,000             1.2500           AMER           19/12/2008
Option            Purchased   -2,000,000             0.6000           AMER           19/12/2008
Option            Purchased   -1,300,000             1.4000           AMER           18/12/2009
Option            Purchased   -700,000               1.4000           AMER           18/12/2009
Option            Purchased   -272,000               1.5004           EURO           11/07/2008
Option            Purchased   475,000                1.8000           AMER           18/12/2009

Notes

1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given.
Full details of any  existing agreements to purchase or to sell  should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk