Investor Contacts

Institutional Investors

Spirent Communications plc
Northwood Park
Gatwick Road
Crawley
West Sussex
RH10 9XN
United Kingdom
Tel: +44 (0)1293 767676
Fax: +44 (0)1293 767677
Email: investor.relations@spirent.com

Private Investors (Ordinary Shares)

Equiniti
Aspect House
Spencer Road
Lancing
West Sussex BN99 6DA
United Kingdom
Service helplines:
Tel: 0871 384 2126 (UK)
Tel: +44 121 415 7047 (overseas)
Website: www.shareview.co.uk

Private Investors (American Depositary Shares)

The Bank of New York Mellon
ADR Depositary Receipts
101 Barclay Street
22nd Floor
New York, NY 10286
USA
Tel: 1 888 269 2377 (toll free - US)
Tel: +1 (201) 680 5825 (outside US)
Email: shrrelations@bnymellon.com
Website: www.adrbny.com