DSL.net Introduces NETgain One Integrated Voice and Data Product.

Business Editors

NEW HAVEN, Conn.--(BUSINESS WIRE)--June 17, 2003

DSL.net, Inc. (NASDAQ: DSLN)

T-1 data service with 8- or 16-line integrated voice available

for businesses in Washington, D.C., Maryland and Virginia

DSL.net, Inc. (NASDAQ: DSLN), a leading nationwide provider of broadband communications services to businesses, today announced the launch of NETgain One, an integrated voice and data service offering, in Washington, D.C., and surrounding business-intensive regions in Maryland and Virginia.

NETgain One provides a T-1 connection for both voice and data services with a choice of eight-line or 16-line telephone offerings. The competitively priced T-1 service provides a cost-effective solution for voice that includes 2,500 domestic long-distance minutes with the eight-line package and 5,000 minutes with the 16-line offering. NETgain One also includes unlimited local calling, free caller ID and a full suite of Internet services.

"We are all extremely excited about being able to offer integrated voice and data bundled services throughout Washington, D.C., as well as in Maryland and Virginia," said Ray Allieri, senior vice president of Sales & Marketing of DSL.net. "NETgain One is a very cost-effective bundled service and it targets a segment of the business market that is paying some of the highest rates in the country for local and long-distance telephone service."

According to Michael Lauricella, senior program manager for small and medium business (SMB) technologies at The Yankee Group, a Boston-based telecommunications technology research and consulting firm, a recent nationwide survey found that "integrated voice and data service offerings are critical to the success of any service provider in the SMB market. The market remains under-addressed, and SMBs' bandwidth needs continue to increase. This is evidenced by the fact that service providers offering integrated voice and data products are experiencing strong demand."

The NETgain One product offering is a result of DSL.net's recently announced agreement to acquire substantially all of the assets and subscribers of TalkingNets, Inc., a voice and data communications provider that offers softswitch-based voice and high-speed data services to business customers in Maryland, Virginia and Washington, D.C. DSL.net expects to close this transaction during the third quarter. Currently, the two companies are operating jointly.

"This is both a strategic and product milestone for DSL.net," said Keith Markley, president and chief operating officer of DSL.net. "We have long planned to layer a voice component onto our extensive data network - meeting the growing demand by businesses for an integrated voice and data bundled service offering. We believe that such an offering will give us the ability to further increase our revenues and improve margins."

Allieri said that DSL.net plans to continue to expand its capability for offering NETgain One service in both Maryland and Virginia - eventually reaching other major markets like Baltimore and Richmond. He added that DSL.net intends to roll out integrated voice and data services in other markets, including New York, Boston and business-intensive regions in Connecticut. DSL.net also plans to include integrated voice and data as part of its enhanced services for other Internet connection speeds.

About DSL.net

DSL.net, Inc. is a leading nationwide provider of broadband communications services to businesses. The Company combines its own facilities, nationwide network infrastructure and Internet Service Provider (ISP) capabilities to provide high-speed Internet access, private network solutions and value-added services directly to small- and medium-sized businesses or larger enterprises looking to connect multiple locations. DSL.net product offerings include T-1 and business-class DSL services, virtual private networks (VPNs), frame relay, Web hosting, DNS management, enhanced e-mail, online data backup and recovery services, firewalls and nationwide dial-up services; as well as integrated voice and data offerings in select markets. For more information, visit www.dsl.net, e-mail [e-mail] or call 1-877-DSL-NET1 (1-877-375-6381).

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements are subject to a variety of risks and uncertainties, many of which are beyond DSL.net's control, which could cause actual results to differ materially from those contemplated in these forward-looking statements. In particular, the risks and uncertainties include, among other things, (i) DSL.net's ability to execute its business plan in a timely manner to generate the forecasted financial and operating results and liquidity; (ii) DSL.net's need for additional funds by the end of the second quarter of 2003, which may not be available on acceptable terms or at all, which could adversely impact DSL.net's ability to implement its business plan and continue its operations; (iii) failure to generate sufficient revenue, contain certain discretionary spending, achieve certain other business plan objectives or obtain additional capital could have a material adverse effect on DSL.net's results of operations or financial position, or cause it to pursue strategic alternatives or discontinue some, a significant portion or all of its operations; (iv) the completion of the acquisition of the TalkingNets assets and, if completed, the successful integration of those assets into DSL.net; (v) DSL.net's ability to realize the revenue, earnings, synergies and other benefits anticipated from the acquisition of the TalkingNets assets; (vi) competition; (vii) risks associated with the possible removal of DSL.net's common stock from the Nasdaq SmallCap Market, which removal could adversely impact the pricing and trading of DSL.net's common stock; and (viii) regulatory, legislative and judicial developments, which could adversely affect the way DSL.net operates its business. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. DSL.net undertakes no obligation, and disclaims any obligation, to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise. For additional information regarding these and other risks faced by DSL.net, see the disclosure contained under "Risk Factors'' in DSL.net's Annual Report on Form 10-K for the year ended December 31, 2002, which has been filed with the Securities and Exchange Commission.

DSL.net is a trademark of DSL.net, Inc. Other company names may be trademarks of their respective owners.