WFI Announces Revised Date for Fourth Quarter and Full Year 2005 Financial Results and Conference Call

SAN DIEGO, Feb 27, 2006 /PRNewswire-FirstCall via COMTEX News Network/ — WFI (Nasdaq: WFII), a global leader in the design, deployment, and management of wireless communication networks, technology networks and security systems, announced today a revised date to publish its financial results for the fourth quarter and full year of 2005. The new date of Tuesday, March 14th was announced on Friday, February 17th in conjunction with the Company’s announcement to discontinue its Mexico operations. The earnings will be published on March 14th at 1:05 p.m. PST (4:05 p.m. EST). A live conference call will begin that same afternoon at 1:30 p.m. PST (4:30 p.m. EST). The call will be webcast and can be accessed at WFI’s Web site at www.wfinet.com.

A replay of the call will be available from 3:30 p.m. PST on March 14, 2006 through 8:00 p.m. PST on March 28, 2006, by dialing (888) 203-1112, (Reservation #9948507).

About WFI

Headquartered in San Diego, CA, WFI is an independent provider of systems engineering, network services and technical outsourcing for the world’s largest wireless carriers, enterprise customers and for government agencies. The company provides the design, deployment, integration, and the overall management of wired and wireless networks which deliver voice and data communication, and which support advanced security systems. WFI has performed work in over 100 countries since its founding in 1994. News and information are available at www.wfinet.com. (code: WFI-mb)

Notice Regarding Forward-Looking Statements

This news release contains certain forward-looking statements including, without limitation, expressed or implied statements concerning the Company’s expectations regarding anticipated operating results for 2005, future financial performance and cash flows and market developments that involve risks and uncertainties. Such statements are only predictions, and the Company’s actual results may differ materially. Factors that may cause the Company’s results to differ include, but are not limited to: changes in the scope or timing of the Company’s projects; slowdowns in telecommunications infrastructure spending in the United States and globally, which could delay network deployment and reduce demand for the Company’s services; the timing, rescheduling or cancellation of significant customer contracts and agreements, or consolidation by or the loss of key customers; failure to successfully consummate acquisitions or integrate acquired operations; the rate of adoption of telecom outsourcing by network carriers and equipment suppliers; the rate of growth of adoption of WLAN and wireless security systems by enterprises; and competition in the marketplace which could reduce revenues and profit margins. The Company undertakes no obligation to update any forward-looking statements. These and other risk factors are more fully discussed in the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2005 and in other filings made with the Securities and Exchange Commission.

Contact: Michael Baehr VP of Corporate Communications & Investor Relations Wireless Facilities, Inc. 858.228.2799 Direct michael.baehr@wfinet.com

SOURCE WFI

Michael Baehr, VP of Corporate Communications & Investor Relations of Wireless Facilities, Inc., +1-858-228-2799, michael.baehr@wfinet.com

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