OPNET Technologies, Inc. Schedules Second Quarter Results Teleconference/Webcast for Wednesday, October 30, 2002

Bethesda MD-- October 9, 2002 -- OPNET Technologies, Inc. (Nasdaq: OPNT) will hold an investor conference call on Wednesday, October 30, 2002 at 5:00 pm EST to review financial results for the second quarter of fiscal 2003.

To listen to the OPNET investor conference call:

• Call 877-407-9210 in the U.S. or 201-689-8049 for international callers, and enter password OPT-2Q54, or
• Use the webcast at www.opnet.com, or at 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 877-660-6853 or 201-612-7415 for international callers. For replay, enter account # 1628, conference ID # 44965. The replay will be available from 7:00 pm EST October 30th through 7:00 pm EST November 2nd.
• The webcast will be available at www.opnet.com or at www.vcall.com, archived for seven days

The second quarter of fiscal 2003 financial results will be released after the market closes on Wednesday, October 30, 2002.

About OPNET Technologies, Inc.

Founded in 1986, OPNET Technologies, Inc. is the leading provider of intelligent network management software. For more information about OPNET and its products, visit www.opnet.com.

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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