opnet
Press release

OPNET Technologies Inc. Schedules Second Quarter Results Teleconference/WebCast for Tuesday, October 30, 2001

BETHESDA, MD., October 15, 2001 -- OPNET Technologies, Inc. (Nasdaq: OPNT) will hold an investor conference call on Tuesday, October 30, 2001 at 5:00 pm Eastern
Standard Time to review financial results for the second quarter of fiscal 2002.

To listen to the OPNET investor conference call as it happens:

  • Call 800-899-5685 in the U.S. or 212-676-4918 for international callers (both are listen only), or
  • Use the webcast at www.opnet.com, or www.vcall.com (click on OPNT under "Today's Vcalls"). Investors are advised to go to the web site at least 15 minutes early to register, download, and install any necessary audio software.

To listen to the archived call:

  • Call the replay phone number at 800-633-8284 in the U.S. or 858-812-6440 for international callers. For replay, enter reservation number 19873359. The replay will be available from 7:30 pm Eastern Daylight Time on October 30 until 7:30 pm Eastern Daylight Time on November 2.
  • Alternatively, the webcast is available at www.opnet.com, or at www.vcall.com (search on "OPNT"). The call will be archived for 7 days.

The second quarter of fiscal 2002 financial results will be released after the market closes on Tuesday, October 30, 2001.

About OPNET Technologies, Inc.
Founded in 1986, OPNET Technologies, Inc. is the leading provider of intelligent network management software. The OPNET product suite combines predictive modeling and a comprehensive understanding of networking technologies to enable its customers to more effectively design and deploy networks, provision services, diagnose network and application performance problems, and predict the impact of network changes. For more information about OPNET and its products, visit www.opnet.com.

Safe Harbour Statement
The statements contained in this press release that are not purely historical are forward-looking statements within the meaning the Private Securities Litigation Reform Act of 1995, as amended, including statements regarding OPNET Technologies Inc.'s expectations, beliefs, intentions, or strategies regarding the future. All forward-looking statements included in this document are based upon information available to OPNET Technologies, Inc. as of the date hereof; OPNET Technologies, Inc. assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected. For a discussion of such risks and uncertainties, see the Company's reports filed with the Securities & Exchange Commission, including its 10-Q for the quarter ended June 30, 2001.

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Note to editors: The word OPNET is spelled with all upper-case letters.

OPNET Media Contact:
Margarita Castillo
OPNET Technologies, Inc.
(240) 497-3000
Media@opnet.com
www.opnet.com

OPNET Investor Relations:
Mel Wesley
OPNET Technologies
(240) 497-3000
ir@opnet.com
www.opnet.com