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 January, 2003
SPIRENT 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- ________
BLOCK LISTING SIX MONTHLY RETURN
To: Listing Applications
UK Listing Authority
Old Broad Street
London
EC2N 1HP
(020 7588 6057)
Name of company: SPIRENT PLC
Name of scheme: CAW AMENDED AND RESTATED STOCK OPTION PLAN
Period of return: From: 01 JULY 2002 To: 31 DECEMBER 2002
Number and class of share(s) 0 ORDINARY SHARES OF 3 1/3p EACH
(amount of Stock/debt
security) not issued under scheme
at end of the last period:
Number of shares issued/allotted 23,744 ORDINARY SHARES
under scheme during
period:
Balance under scheme not yet 1,391,650 ORDINARY SHARES
issued/allotted at end of
period:
Number and class of share(s) 1,300,000 ORDINARY SHARES OF 3 1/3p EACH
(amount of stock/debt DATED 15 AUGUST 2002
securities) originally listed and
the date of admission: 115,394 ORDINARY SHARES OF 3 1/3P EACH
DATED 28 AUGUST 2002
Please confirm total number of shares in issue at the end of the period in
order for us to update our records
939,438,028
Contact for queries: Address: Spirent plc
Name: Michael Anscombe Spirent House
Telephone: 01293 767676 Crawley Business Quarter
Fleming Way
Crawley, RH10 9QL
Person making return
Name: Michael Anscombe
Position: Assistant Company Secretary
Signature:
BLOCK LISTING SIX MONTHLY RETURN
To: Listing Applications
UK Listing Authority
Old Broad Street
London
EC2N 1HP
(020 7588 6057)
ALL FIGURES HAVE BEEN REVISED FOR THE 3:1 SHARE SPLIT ON 11 MAY 2000
Name of company: SPIRENT PLC
Name of scheme: SPIRENT EXECUTIVE SHARE OPTION SCHEME
Period of return: From: 01 JULY 2002 To: 31 DECEMBER 2002
Number and class of share(s) 1,587,494 ORDINARY SHARES OF 3 1/3p EACH
(amount of Stock/debt
security) not issued under scheme
at end of the last period:
Number of shares issued/allotted 0 ORDINARY SHARES
under scheme during
period:
Balance under scheme not yet 1,587,494 ORDINARY SHARES
issued/allotted at end of
period:
Number and class of share(s) 3,000,000 ORDINARY SHARES OF 3 1/3p
(amount of stock/debt EACH DATED 29/09/2000
securities) originally listed
and the date of admission:
Please confirm total number of shares in issue at the end of the period in
order for us to update our records
939,438,028
Contact for queries: Address: Spirent plc
Name: Michael Anscombe Spirent House
Telephone: 01293 767676 Crawley Business Quarter
Fleming Way
Crawley, RH10 9QL
Person making return
Name: Michael Anscombe
Position: Assistant Company Secretary
Signature:
BLOCK LISTING SIX MONTHLY RETURN
To: Listing Applications
UK Listing Authority
Old Broad Street
London
EC2N 1HP
(020 7588 6057)
Name of company: SPIRENT PLC
Name of scheme: U.S. EMPLOYEE STOCK PURCHASE PLAN
Period of return: From: 01 JULY 2002 To: 31 DECEMBER 2002
Number and class of share(s) 994,000 ORDINARY SHARES OF 3 1/3p EACH
(amount of Stock/debt security)
not issued under scheme at end
of the last period:
Number of shares issued/allotted 33,322 ORDINARY SHARES
under scheme during period:
Balance under scheme not yet 7,960,678 ORDINARY SHARES
issued/allotted at end of
period
Number and class of share(s) 435,000 ORDINARY SHARES OF 3 1/3P EACH
(amount of stock/debt ADMITTED 5 JUNE 2001
securities) originally listed
and the date of admission: 3,500,000 ORDINARY SHARES OF 3 1/3p EACH
ADMITTED 1 NOVEMBER 2001
7,000,000 ORDINARY SHARES OF 3 1/3P EACH
ADMITTED 18 NOVEMBER 2002
Please confirm total number of shares in issue at the end of the period in
order for us to update our records
939,438,028
Contact for queries: Address: Spirent plc
Name: Michael Anscombe Spirent House
Telephone: 01293 767676 Crawley Business Quarter
RH10 9QL
Person making return
Name: Michael Anscombe
Position: Assistant Company Secretary
Signature:
BLOCK LISTING SIX MONTHLY RETURN
To: Listing Applications
UK Listing Authority
Old Broad Street
London
EC2N 1HP
(020 7588 6057)
Name of company: SPIRENT PLC
Name of scheme: GLOBAL ALL EMPLOYEE SHARE PURCHASE PLAN
Period of return: From: 01 JULY 2002 To: 31 DECEMBER 2002
Number and class of share(s) 0 ORDINARY SHARES OF 3 1/3p EACH
(amount of Stock/debt security)
not issued under scheme at end
of the last period:
Number of shares issued/allotted 0 ORDINARY SHARES
under scheme during period:
Balance under scheme not yet 1,000,000 ORDINARY SHARES
issued/allotted at end of
period
Number and class of share(s) 1,000,000 ORDINARY SHARES OF 3 1/3p EACH
(amount of stock/debt DATED 18 NOVEMBER 2002
securities) originally listed
and the date of admission:
Please confirm total number of shares in issue at the end of the period in
order for us to update our records
939,438,028
Contact for queries: Address: Spirent plc
Name: Michael Anscombe Spirent House
Telephone: 01293 767676 Crawley Business Quarter
RH10 9QL
Person making return
Name: Michael Anscombe
Position: Assistant Company Secretary
Signature:
BLOCK LISTING SIX MONTHLY RETURN
To: Listing Applications
UK Listing Authority
Old Broad Street
London
EC2N 1HP
(020 7588 6057)
ALL FIGURES HAVE BEEN REVISED FOR THE 3:1 SHARE SPLIT ON 11 MAY 2000
Name of company: SPIRENT PLC
Name of scheme: NETCOM AMENDED AND RESTATED STOCK OPTION PLAN
Period of return: From: 01 JULY 2002 To: 31 DECEMBER 2002
Number and class of share(s) 1,593,040 ORDINARY SHARES OF 3 1/3p EACH
(amount of Stock/debt
security) not issued under scheme
at end of the last period:
Number of shares issued/allotted 1,390,271 ORDINARY SHARES
under scheme during
period:
Balance under scheme not yet 6,925,458 ORDINARY SHARES
issued/allotted at end of
period:
Number and class of share(s) 3,291,399 ORDINARY SHARES OF 3 1/3p EACH
(amount of stock/debt DATED 03/09/1999
securities) originally listed
and the date of admission: 1,739,130 ORDINARY SHARES OF 3 1/3p EACH
DATED 8 JULY 2002
6,722,689 ORDINARY SHARES OF 3 1/3P EACH
DATED 8 OCTOBER 2002
Please confirm total number of shares in issue at the end of the period in
order for us to update our records
939,438,028
Contact for queries: Address: Spirent plc
Name: Michael Anscombe Spirent House
Telephone: 01293 767676 Crawley Business Quarter
Fleming Way Crawley, RH10 9QL
Person making return
Name: Michael Anscombe
Position: Assistant Company Secretary
Signature:
BLOCK LISTING SIX MONTHLY RETURN
To: Listing Applications
UK Listing Authority
Old Broad Street
London
EC2N 1HP
(020 7588 6057)
Name of company: SPIRENT PLC
Name of scheme: ZARAK AMENDED AND RESTATED STOCK OPTION PLAN
Period of return: From: 01 JULY 2002 To: 31 DECEMBER 2002
Number and class of share(s) 2,750,976 ORDINARY SHARES OF 3 1/3p EACH
(amount of Stock/debt
security) not issued under scheme
at end of the last period:
Number of shares issued/allotted 59,980 ORDINARY SHARES
under scheme during
period:
Balance under scheme not yet 2,690,996 ORDINARY SHARES
issued/allotted at end of
period:
Number and class of share(s) 3,895,474 ORDINARY SHARES OF 3 1/3p EACH
(amount of stock/debt DATED 14 NOVEMBER 2000
securities) originally listed
and the date of admission:
Please confirm total number of shares in issue at the end of the period in
order for us to update our records
939,438,028
Contact for queries: Address: Spirent plc
Name: Michael Anscombe Spirent House
Telephone: 01293 767676 Crawley Business Quarter
Fleming Way
Crawley, RH10 9QL
Person making return
Name: Michael Anscombe
Position: Assistant Company Secretary
Signature:
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.
______LUKE THOMAS______
(Registrant)
Date___January 6, 2003____ By ____/s/ Luke Thomas____
(Signature)*