UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                       PURSUANT TO RULE 13a-16 OR 15d-16
                     UNDER THE SECURITIES EXCHANGE ACT OF 1934




                          For the month of April, 2007

                           SPIRENT COMMUNICATIONS plc
     _____________________________________________________________________
                (Translation of registrant's name into English)

  Spirent House, Crawley Business Quarter, Fleming Way, Crawley, West Sussex
                                RH10 9QL, UK.
     _____________________________________________________________________
                    (Address of principal executive offices)


Indicate by check mark whether the registrant files or will file annual reports
under cover Form 20-F or Form 40-F.

                         Form 20-F    X         Form 40-F.....

Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                               Yes .....        No     X

If "Yes" is marked, indicate below the file number assigned to the registrant
in connection with Rule 12g3-2(b): 82- ________

                   Spirent Communciations plc (the "Company")

                           Annual Information Update

                                  2 April 2007


In accordance with Section 5.2 of the Prospectus Rules, the Company submits its
Annual Information Update which refers to information that has been published or
made available to the public in the 12 months up to and including 30 March 2007.


In accordance with the provisions of Article 27(3) of the Prospectus Directive
Regulation, it is acknowledged that some of the information referred to in this
update was up to date at the time the information was published but may now be
out of date. Information is referred to in this update rather than included in
full.


1.  Announcements listed below were published via a Regulatory Information
    Service.


Date                            Headline

30/03/2007                  Transaction in Own Shares

30/03/2007                  Annual Report and Accounts

29/03/2007                  Transaction in Own Shares

29/03/2007                  Director/PDMR Shareholding

28/03/2007                  Transaction in Own Shares

28/03/2007                  Transaction in Own Shares

27/03/2007                  Transactions in Own Shares

27/03/2007                  Holding(s) in Company

22/03/2007                  Holding(s) in Company

21/03/2007                  Transaction in Own Shares

20/03/3007                  Transaction in Own Shares

15/03/2007                  Director/PDMR Shareholding

14/03/2007                  Holding(s) in Company

13/03/2007                  Director/PDMR Shareholding

08/03/2007                  Appointment of Brokets

08/03/2007                  Board Change

07/03/2007                  Additional Listing

06/03/2007                  Cancellation of Shares

02/03/2007                  Total Voting Rights

01/03/2007                  Final Results

21/02/2007                  Director/PDMR Shareholding

20/02/2007                  Holding(s) in Company

14/02/2007                  Additional Listing

07/02/2007                  Director/PDMR Shareholding

01/02/2007                  Holding(s) in Company

01/02/2007                  Total Voting Rights

30/01/2007                  Director/PDMR Shareholding

29/01/2007                  Holding(s) in Company

19/01/2007                  Notice of Results

19/01/2007                  Total Voting Rights

18/01/2007                  Additional Listing

15/01/2007                  Director/PDMR Shareholding

09/01/2007                  Holding(s) in Company

09/01/2007                  Blocklisting Interim Review

05/01/2007                  Director/PDMR Shareholding

03/01/2007                  Director Declaration

02/01/2007                  Director/PDMR Shareholding

29/12/2006                  Directorate Change

28/12/2006                  Total Voting Rights

22/12/2006                  Result of EGM - Votes Cast

22/12/2006                  Result of EGM

21/12/2006                  Director/PDMR Shareholding

15/12/2006                  Director/PDMR Shareholding

11/12/2006                  Circular Available

11/12/2006                  Further EGM Circular

05/12/2006                  Response to Sherborne

05/12/2006                  Director/PDMR Shareholding

04/12/2006                  Director PDMR Shareholding

29/11/2006                  EGM Circular

29/11/2006                  Notice of EGM

21/11/2006                  Transaction in Own Shares

20/11/2006                  Transaction in Own Shares

17/11/2006                  EGM Statement

17/11/2006                  Transaction in Own Shares

16/11/2006                  Transaction in Own Shares

15/11/2006                  Re Shareholder Proposal

10/11/2006                  Transaction in Own Shares

09/11/2006                  Transaction in Own Shares

08/11/2006                  Transaction in Own Shares

07/11/2006                  Transaction in Own Shares

02/11/2006                  Transaction in Own Shares

02/11/2006                  Transaction in Own Shares

01/11/2006                  Transaction in Own Shares

31/10/2006                  Transaction in Own Shares

25/10/2006                  Transaction in Own Shares

24/10/2006                  Transaction in Own Shares

23/10/2006                  Transaction in Own Shares

20/10/2006                  Transaction in Own Shares

19/10/2006                  Transaction in Own Shares

19/10/2006                  Director/PDMR Shareholding

19/10/2006                  Additional Listing

17/10/2006                  Transaction in Own Shares

16/10/2006                  Transaction in Own Shares

13/10/2006                  Transaction in Own Shrs-Amd

13/10/2006                  Transaction in Own Shares

12/10/2006                  Transaction in Own Shares

11/10/2006                  Transaction in Own Shares

10/10/2006                  Transaction in Own Shares

05/10/2006                  Strategy & Trading Update

27/09/2006                  Transaction in Own Shares

26/09/2006                  Transaction in Own Shares

25/09/2006                  Transaction in Own Shares

22/09/2006                  Transaction in Own Shares

21/09/2006                  Transaction in Own Shares

20/09/2006                  Transaction in Own Shares

20/09/2006                  Holding(s) in Company

19/09/2006                  Transaction in Own Shares

18/09/2006                  Transaction in Own Shares

15/09/2006                  Transaction in Own Shares

14/09/2006                  Transaction in Own Shares

13/09/2006                  Transaction in Own Shares

12/09/2006                  Transaction in Own Shares

11/09/2006                  Transaction in Own Shares

08/09/2006                  Transaction in Own Shares

08/09/2006                  Director/PDMR Shareholding

07/09/2006                  Transaction in Own Shares

06/09/2006                  Transaction in Own Shares

05/09/2006                  Transaction in Own Shares

04/09/2006                  Transaction in Own Shares

01/09/2006                  Transaction in Own Shares

31/08/2006                  Transaction in Own Shares

31/08/2006                  Holding(s) in Company

30/08/2006                  Transaction in Own Shares

29/08/2006                  Transaction in Own Shares

25/08/2006                  Transaction in Own Shares

24/08/2006                  Holding(s) in Company

24/08/2006                  Doc re. (Interim Report 2006)

24/08/2006                  Transaction in Own Shares

23/08/2006                  Transaction in Own Shares

22/08/2006                  Transaction in Own Shares

22/08/2006                  Director/PDMR Shareholding

22/08/2006                  Director/PDMR Shareholding

21/08/2006                  Transaction in Own Shares

18/08/2006                  Transaction in Own Shares

17/08/2006                  Transaction in Own Shares

16/08/2006                  Transaction in Own Shares

15/08/2006                  Holding(s) in Company

14/08/2006                  Transaction in Own Shares

14/08/2006                  Director/PDMR Shareholding

10/08/2006                  Acquisition

10/08/2006                  Interim Results

08/08/2006                  Holding(s) in Company

08/08/2006                  Holding(s) in Company

03/08/2006                  Transaction in Own Shares

02/08/2006                  Transaction in Own Shares

01/08/2006                  Transaction in Own Shares

31/07/2006                  Transaction in Own Shares

28/07/2006                  Transaction in Own Shares

28/07/2006                  Blocklisting Interim Review

27/07/2006                  Transaction in Own Shares

26/07/2006                  Transaction in Own Shares

25/07/2006                  Transaction in Own Shares

24/07/2006                  Transaction in Own Shares

24/07/2006                  Holding(s) in Company

21/07/2006                  Transaction in Own Shares

21/07/2006                  Holding(s) in Company

20/07/2006                  Transaction in Own Shares

19/07/2006                  Transaction in Own Shares

18/07/2006                  Transaction in Own Shares

17/07/2006                  Transaction in Own Shares

14/07/2006                  Transaction in Own Shares

13/07/2006                  Transaction in Own Shares

12/07/2006                  Transaction in Own Shares

12/07/2006                  Holding(s) in Company

11/07/2006                  Transaction in Own Shares

10/07/2006                  Transaction in Own Shares

10/07/2006                  Acquisition

07/07/2006                  Transaction in Own Shares

06/07/2006                  Transaction in Own Shares

05/07/2006                  Transaction in Own Shares

04/07/2006                  Transaction in Own Shares

04/07/2006                  Holding(s) in Company

03/07/2006                  Transaction in Own Shares

30/06/2006                  Transaction in Own Shares

30/06/2006                  Transaction in Own Shares

30/06/2006                  Director/PDMR Shareholding

29/06/2006                  Transaction in Own Shares

29/06/2006                  Restructuring Actions

23/06/2006                  Transaction in Own Shares

22/06/2006                  Transaction in Own Shares

21/06/2006                  Transaction in Own Shares

21/06/2006                  Transaction in Own Shares

20/06/2006                  Transaction in Own Shares

19/06/2006                  Transaction in Own Shares

16/06/2006                  Transaction in Own Shares

15/06/2006                  Transaction in Own Shares

14/06/2006                  Transaction in Own Shares

14/06/2006                  Trading Statement

09/06/2006                  Transaction in Own Shares

08/06/2006                  Transaction in Own Shares

07/06/2006                  Transaction in Own Shares

07/06/2006                  Director/PDMR Shareholding

06/06/2006                  Transaction in Own Shares

31/05/2006                  Director/PDMR Shareholding

30/05/2006                  Transaction in Own Shares

25/05/2006                  Transaction in Own Shares

22/05/2006                  Transaction in Own Shares

18/05/2006                  Transaction in Own Shares

17/05/2006                  Transaction in Own Shares

16/05/2006                  Transaction in Own Shares

15/05/2006                  Transaction in Own Shares

08/05/2006                  Director/PDMR Shareholding

08/05/2006                  Director/PDMR Shareholding

04/05/2006                  Result of AGM

03/05/2006                  AGM Statement

02/05/2006                  Director/PDMR Statement

25/04/2006                  Director/PDMR Statement

25/04/2006                  Holding(s) in Company

20/04/2006                  Director/PDMR Shareholding

13/04/2006                  Holding(s) in Company

11/04/2006                  Holding(s) in Company

10/04/2006                  Director/PDMR Shareholding

04/04/2006                  Director/PDMR Shareholding

29/03/2006                  Analyst & Investor Conference

28/03/2006                  Director/PDMR Shareholding

28/03/2006                  Holding(s) in Company

27/03/2006                  Annual Information Update


Copies of the above announcements can be obtained from the London Stock Exchange
website at www.londonstockexchange.com.


2.  Documents filed at Companies House


Date on Website  Document Date   Type              Description

                 30/03/2007      288a              Appointment of Director

                 30/03/2007      288b              Resignation of Director

                 30/03/2007      288b              Resignation of Director

29/03/2007      25/01/2007      88(2)R             Allotment of Shares

29/03/2007      16/03/2007      88(2)R             Allotment of Shares

29/03/2007      26/01/2007      88(2)R             Allotment of Shares

29/03/2007      31/01/2007      88(2)R             Allotment of Shares

29/03/2007      02/02/2007      88(2)R             Allotment of Shares

29/03/2007      07/02/2007      88(2)R             Allotment of Shares

29/03/2007      07/02/2007      88(2)R             Allotment of Shares

29/03/2007      08/02/2007      88(2)R             Allotment of Shares

29/03/2007      09/02/2007      88(2)R             Allotment of Shares

29/03/2007      09/02/2007      88(2)R             Allotment of Shares

29/03/2007      12/02/2007      88(2)R             Allotment of Shares

29/03/2007      12/02/2007      88(2)R             Allotment of Shares

29/03/2007      12/02/2007      88(2)R             Allotment of Shares

29/03/2007      06/02/2007      88(2)R             Allotment of Shares

29/03/2007      16/02/2007      88(2)R             Allotment of Shares

29/03/2007      19/02/2007      88(2)R             Allotment of Shares

29/03/2007      20/02/2007      88(2)R             Allotment of Shares

29/03/2007      28/02/2007      88(2)R             Allotment of Shares

29/03/2007      02/03/2007      88(2)R             Allotment of Shares

29/03/2007      06/03/2007      88(2)R             Allotment of Shares

29/03/2007      12/03/2007      88(2)R             Allotment of Shares

08/02/2007      06/12/2006      88(2)R             Allotment of Shares

08/02/2007      07/12/2006      88(2)R             Allotment of Shares

08/02/2007      01/12/2006      88(2)R             Allotment of Shares

08/02/2007      12/12/2006      88(2)R             Allotment of Shares

08/02/2007      14/12/2006      88(2)R             Allotment of Shares

08/02/2007      15/12/2006      88(2)R             Allotment of Shares

08/02/2007      18/12/2006      88(2)R             Allotment of Shares

08/02/2007      01/12/2006      88(2)R             Allotment of Shares

08/02/2007      19/12/2006      88(2)R             Allotment of Shares

08/02/2007      21/12/2001      88(2)R             Allotment of Shares

08/02/2007      03/12/2006      88(2)R             Allotment of Shares

08/02/2007      09/01/2007      88(2)R             Allotment of Shares

08/02/2007      11/01/2007      88(2)R             Allotment of Shares

08/02/2007      15 -17/01/07    88(2)R             Allotment of Shares

08/02/2007      22- 23/01/07    88(2)R             Allotment of Shares

24/01/2006      24/01/2007      288b               Resignation of Director

24/01/2006      24/01/2007      288b               Resignation of Director

24/01/2006      24/01/2007      288b               Resignation of Director

24/01/2006      24/01/2007      288b               Resignation of Director

24/01/2006      24/01/2007      288b               Resignation of Director

25/01/2006      25/01/2007      288a               Appointment of Director

25/01/2006      25/01/2007      288a               Appointment of Director

25/01/2006      25/01/2007      288a               Appointment of Director

25/01/2007      25/01/2006      288a               Appointment of Director

06/01/2007      22/12/2006      RES13              Removal of Directors and
                                                   Appointment of  Directors on
                                                   22 December 2006

28/12/2006      24/11/2006      169(1B)            Return by  a Public Company
                                                   Purchasing its own shares for
                                                   Holding in Treasury

19/12/2006      23/11/2006      169(1B)            Return by  a Public Company
                                                   Purchasing its own shares for
                                                   holding in Treasury

14/12/2006      30/11/2006      88(2)R             Allotment of Shares

14/12/2006      28/11/2006      88(2)R             Allotment of Shares

14/12/2006      24/11/2006      88(2)R             Allotment of Shares

14/12/2006      17/11/2006      88(2)R             Allotment of Shares

14/12/2006      16/11/2006      88(2)R             Allotment of Shares

14/12/2006      16/11/2006      88(2)R             Allotment of Shares

14/12/2006      14 -15/11/06    88(2)R             Allotment of Shares

14/12/2006      09 -13/11/06    88(2)R             Allotment of Shares

12/12/2006      15/11/2006      169(1B)            Return by a Public Company
                                                   Purchashing its own shares

for holding in Treasury

30/11/2006      10/11/2006      169(1B)            Return by a Public Company
                                                   Purchashing its own shares
                                                   for holding in Treasury

24/11/2006      03/11/2006      169(1B)            Return by a Public Company
                                                   Purchashing its own shares
                                                   for holding in Treasury

22/11/2006      09/11/2006      88(2)R             Allotment of Shares

22/11/2006      07-08/11/06     88(2)R             Allotment of Shares

22/11/2006      06/11/2006      88(2)R             Allotment of Shares

22/11/2006      01- 02/11/06    88(2)R             Allotment of Shares

22/11/2006      01/11/2006      88(2)R             Allotment of Shares

22/11/2006      26/10/2006     88(2)R              Allotment of Shares

22/11/2006      27/10/2006     88(2)R              Allotment of Shares

22/11/2006      27/10/2006     88(2)R              Allotment of Shares

15/11/2006      26/10/2006     169(1B)             Return by a Public Company
                                                   Purchashing its own shares
                                                   for holding in Treasury

14/11/2006      18/10/2006     169(1B)             Return by a Public Company
                                                   Purchashing its own shares
                                                   for holding in Treasury

08/11/2006      24/10/2006     88(2)R              Allotment of Shares

08/11/2006      23/10/2006     88(2)R              Allotment of Shares

08/11/2006      20/10/2006     88(2)R             Allotment of Shares

08/11/2006      19/10/2006     88(2)R             Allotment of Shares

08/11/2006      18/10/2006     88(2)R             Allotment of Shares

08/11/2006      17/10/2006     88(2)R             Allotment of Shares

08/11/2006      17/10/2006     88(2)R             Allotment of Shares

08/11/2006      16/10/2006     88(2)R             Allotment of Shares

08/11/2006      13/10/2006     88(2)R             Allotment of Shares

08/11/20006    12/10/2006     88(2)R              Allotment of Shares

08/11/2006      11-12/10/06    88(2)R             Allotment of Shares

08/11/2006      09-11/10/06    88(2)R             Allotment of Shares

08/11/2006      06/10/2006     88(2)R             Allotment of Shares

08/11/2006      06/10/2006     88(2)R             Allotment of Shares

08/11/2006      05-06/10/06    88(2)R             Allotment of Shares

08/11/2006      17/10/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

27/10/2006      17/10/2006     395                Particulars of Mortgage/Charge

01/11/2006      02/10/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares for
                                                  holding in Treasury

01/11/2006       27/09/2006     169(1B)           Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

23/10/2006      23/10/2006     287                Change of registered office
                                                  address - Minor amendment

19/10/2006      22/09/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

19/10/2006      19/09/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

18/10/2006      03/10/2006     88(2)R             Allotment of Shares

18/10/2006      27/09/2006     88(2)R             Allotment of Shares

18/10/2006      25/09/2006     22(2)R             Allotment of Shares

18/10/2006      22/09/2006     88(2)R             Allotment of Shares

18/10/2006      20-21/09/06    88(2)R             Allotment of Shares

18/10/2006      13-14/09/06    88(2)R             Allotment of Shares

18/10/2006      07-08/09/06    88(2)R             Allotment of Shares

18/10/2006      01-05/09/06    88(2)R             Allotment of Shares

04/10/2006      14/09/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

28/09/2006      11/09/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

28/09/2006      01/09/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

28/09/2006      06/09/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

12/09/2006      29/08/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

12/09/2006      17/08/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

12/09/2006      23/08/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

12/09/2006      29-30/08/06    88(2)R             Allotment of Shares

12/09/2006      21/08/2006     88(2)R             Allotment of Shares

04/09/2006      24/08/2006     88(2)R             Allotment of Shares

04/09/2006      23/08/2006     88(2)R             Allotment of Shares

04/09/2006      22/08/2006     88(2)R             Allotment of Shares

04/09/2006      22/08/2006     88(2)R             Allotment of Shares

04/09/2006      22/08/2006     88(2)R             Allotment of Shares

04/09/2006      16-18/08/06    88(2)R             Allotment of Shares

04/09/2006      18/08/2006     88(2)R             Allotment of Shares

04/09/2006      17/08/2006     88(2)R             Allotment of Shares

04/09/2006      17/08/2006     88(2)R             Allotment of Shares

04/09/2006      15/08/2006     88(2)R             Allotment of Shares

04/09/2006      14-15/08/06    88(2)R             Allotment of Shares

04/09/2006      16/08/2006     88(2)R             Allotment of Shares

04/09/2006      11/08/2006     88(2)R             Allotment of Shares

04/09/2006      04/07/2006     88(2)R             Allotment of Shares

04/09/2006      28/07/2006     88(2)R             Allotment of Shares

04/09/2006      27/07/2006     88(2)R             Allotment of Shares

21/08/2006      02/08/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

21/08/2006      28/07/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

18/08/2006      27/07/2006     169(1B)            Return by a Public Company
                                                  purchashing its own shares
                                                  for holding in Treasury

18/08/2006      24/07/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

15/08/2006      19/07/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

09/08/2006      14/07/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

04/08/2006      11/07/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

31/07/2006      20/07/2006     88(2)R             Allotment of Shares

01/08/2006      06/07/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

27/07/2006      12/07/2006     88(2)R             Allotment of Shares

26/07/2006      28/06/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

20/07/2006      06-07/07/06    88(2)R             Allotment of Shares

12/07/2006      27/06/2006     88(2)R             Allotment of Shares

12/07/2006      23/06/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

07/07/2006      20/06/2006      169(1B)           Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

11/07/2006      13/06/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

05/07/2006      26/06/2006     88(2)R             Allotment of Shares

29/06/2006      02/06/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

28/06/2006      6/06/2006       88(2)R            Allotment of Shares

27/06/2006      23/05/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

27/06/2006      18/05/2006     169(1B)            Return by a Public Company
                                                  Purchashing its own shares
                                                  for holding in Treasury

10/07/2006                        363             Annual Return (details up to
                                                  30/04/2006)

23/06/2006      13/06/2006      88(2)R             Allotment of Shares

23/06/2006      14/06/2006      88(2)R             Allotment of Shares

21/06/2006      13/06/2006     88(2)R             Allotment of Shares

21/06/2006      12/06/2006     88(2)R             Allotment of Shares

15/06/2006      06/06/2006     88(2)R             Allotment of Shares

14/06/2006      30/05/2006     88(2)R             Allotment of Shares

12/06/2006      18/05/2006     88(2)R             Allotment of Shares

12/06/2006      19/05/2006     88(2)R             Allotment of Shares

12/06/2006      23.05/2006     88(2)R             Allotment of Shares

26/05/2006      12/05/2006     88(2)R             Allotment of Shares

25/05/2006      11/05/2006     88(2)R             Allotment of Shares

22/05/2006      05-08/05/06    88(2)R             Allotment of Shares

17/05/2006      31/03/2006     See description    Interim Accounts

16/05/2006      03/05/2006      Res 09            S80 Amount renewed to
                                                  144,866,505 shares

16/05/2006      02-03/05/06    88(2)              Allotment of Shares

16/05/2006      31/12/2006     AA                 Group of Company Accounts
                                                  made up to 31/12/2006

10/05/2006      09/05/2006      288b              Director resigned

15/05/2006      03/05/2006      Mem/Arts          Amendment to Memorandum
                                                  and Articles of Association

08/05/2006      03/05/2006      CertNm            Company name changed
                                                  from Spirent plc to Spirent
                                                  Communications plc
                                                 Certificate issued on 8/05/2006
                                                 Resolution passed on 03/05/2006

11/05/2006      27/04/2006      88(2)R             Allotment of Shares

11/05/2006      24/04/2006      88(2)R             Allotment of Shares

11/05/2006      24/04/2006      88(2)R             Allotment of Shares

08/05/2006      21/04/2006      88(2)R             Allotment of Shares

03/05/2006      05/04/2006      88(2)R             Allotment of Shares

27/04/2006      06-11/04/06     88(2)R             Allotment of Shares

18/04/2006      28-31/03/06     88(2)R             Allotment of Shares

07/04/2006      27/03/2006      88(2)R             Allotment of Shares

07/04/2006      27/03/2006      88(2)R             Allotment of Shares

07/04/2006      27/03/2006      88(2)R             Allotment of Shares

06/04/2006      24/03/2006     88(2)R              Allotment of Shares

30/03/2006      21/03/2006     88(2)R              Allotment of Shares

29/03/2006      20/03/2006     88(2)R              Allotment of Shares

28/03/2006      16/03/2006     88(2)R              Allotment of Shares

Copies of these documents can be obtained from:

Companies House

Crown Way

Cardiff

CF14 3UZ

United Kingdom

Tel: +44 (0) 870 333 3636

E-mail: enquiries@companies-house.gov.uk


If you are a registered user, you can access these filings through Companies
House Direct at www.directcompanieshouse.gov.uk.


3.  Documents Despatched to Members



The following documents have been despatched by the Company to holders of its
securities during the period:


Interim Report for 2006 released on 10 August 2006

Notice of Requisitioned Extraordinary General Meeting Shareholder Circular
released on 29 November 2006

Circular to Shareholders, re: Requisitioned EGM, released on 11 December 2006

Notice of 2007 Annual General Meeting released 30 March 2007

Annual Report for 2007 released 30 March 2007.


All the above documents can be found on the Company's webstite at
www.spirent.com.


Alternatively, copies of information released can be obtained through the
Company Secretary at the Company's registered office:

Spirent House

Crawley Business Quarter

Fleming Way Crawley

West Sussex

RH10 9QL

United Kingdom


Tel: +44 (0) 1293 767676



Michael Anscombe

Deputy Company Secretary

Spirent Communications plc






                                   Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                               ______MICHAEL ANSCOMBE______

                                                     (Registrant)

Date: 02 April, 2007                      By   ____/s/ Michael Anscombe____

                                                    (Signature)*