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               28 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      96,613,970      3.88%     5,190,016      0.21%
securities
(2) Derivatives    6,860,562      0.28%    25,862,631      1.04%
(other than
options)
(3) Options and   21,119,983      0.85%     9,640,400      0.39%
agreements to
purchase/sell
Total            124,594,515      5.00%    40,693,047      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      5,077                 1.5770
Purchase      410,720               1.5961
Purchase      497,991               1.6014
Purchase      7,352                 1.5990
Purchase      361,284               1.6320
Purchase      466,918               1.6148
Purchase      11,672                1.5889
Purchase      17,279                1.6018
Purchase      200,000               1.5890
Purchase      249,619               1.6122
Purchase      2,595                 1.6350
Purchase      94,779                1.5873
Purchase      7,352                 1.6020
Purchase      367                   1.6540
Purchase      94,196                1.6386
Purchase      29,533                1.5870
Purchase      2,689                 1.5870
Purchase      1,840                 1.6421
Purchase      729                   Transfer
Sale          800                   1.5992
Sale          104                   1.5870
Sale          18,251                1.5738
Sale          6,128                 1.5870
Sale          87,819                1.6210
Sale          475                   1.6438
Sale          361,284               1.6320
Sale          11,484                1.5870
Sale          82,384                1.6517
Sale          519                   1.5991
Sale          16,234                1.6727
Sale          7,352                 1.5990
Sale          633,192               1.5753
Sale          54,600                1.6570

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          18251         1.5737
CFD            Long          87819         1.6209
CFD            Long          11342         1.624
CFD            Long          12255         1.6242
CFD            Long          82384         1.6516
CFD            Long          54600         1.657
CFD            Long          16234         1.6726
CFD            Short         5077          1.577
CFD            Short         94779         1.5873
CFD            Short         11672         1.5889
CFD            Short         497991        1.6013
CFD            Short         17279         1.6018
CFD            Short         249619        1.6121
CFD            Short         466918        1.6147
CFD            Short         94196         1.6385
CFD            Short         1840          1.6421


(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                         29 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   177,583                1.7518           EURO           06/06/2008
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   -272,000               1.3239           EURO           11/07/2008
Option            Purchased   -48,200                1.6646           EURO           27/08/2008
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   -3,000,000             1.0000           AMER           19/12/2008
Option            Purchased   48,200                 1.6646           EURO           27/08/2008
Option            Purchased   10,000,000             1.7000           AMER           18/12/2009
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   475,000                1.8000           AMER           18/12/2009
Option            Purchased   760,000                1.3000           AMER           18/12/2009
Option            Purchased   760,000                1.3000           AMER           18/12/2009
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   48,200                 1.4688           EURO           27/08/2008

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