Holding(s) in Company

Spirent PLC
18 October 2002



                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

     SPIRENT PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

     LEXA B.V.

3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

     SHAREHOLDER IN 2 ABOVE

4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

     -

5)   Number of shares/amount of stock acquired.

     6,000,000

6)   (0.639%) of issued Class

7)   Number of shares/amount of stock disposed

     -

8)   ( - %) of issued Class

9)   Class of security

     ORDINARY SHARES OF 3 1/3p EACH

10)  Date of transaction

     16 AND 17 OCTOBER 2002

11)  Date company informed

     18 OCTOBER 2002

12)  Total holding following this notification

     118,398,257
               
13)  Total percentage holding of issued class following this notification

     12.604%

14)  Any additional information

     NOTIFICATION IN ACCORDANCE WITH S198-202 COMPANIES ACT 1985

15)  Name of contact and telephone number for queries

     LUKE THOMAS         01293 767658

16)  Name and signature of authorised company official responsible for 
     making this notification

     Date of Notification .....18 OCTOBER 2002...................



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