Anthony Piazza Senior Vice President, Finance NetScout Systems, Inc. 310 Littleton Road Westford, MA 01886
Phone: 978-614-4000 E-mail: ir@netscout.com
Shareholder correspondence should be mailed to: Computershare P.O. Box 43078 Providence, RI 02940-3078
Website for online access: www.computershare.com/investor Toll Free Dedicated U.S Phone Number: 877-239-1247 International Stockholders: 201-680-6578
Cooley Godward Kronish LLP Boston, MA
PricewaterhouseCoopers LLP Boston, MA