DSL.net Names Keisch as Chief Financial Officer; Board of Directors Also Appoints CEO Buddy Pickle as President.

NEW HAVEN, Conn. -- DSL.net, Inc. (AMEX: BIZ), a leading nationwide provider of broadband communications services to businesses, today announced that its Board of Directors has appointed Walter R. Keisch as chief financial officer and treasurer, while Chief Executive Officer Kirby G. "Buddy" Pickle has been named president. The appointments were made effective Sept. 23, 2005.

Keisch, who has served as DSL.net's vice president of finance for nearly five years, brings extensive knowledge of the Company's financial affairs as well as significant financial management experience to his new roles with the Company. He is a former CFO of a startup e-business unit of GE Capital Real Estate and also served as CFO for E-Sync Networks, an e-business service provider. Keisch is a CPA with over 25 years of senior-level financial experience.

"I am delighted that Walt will be taking on the important roles of CFO and treasurer," said Pickle, president and chief executive officer of DSL.net. "We are very fortunate to have someone of Walt's caliber already in our organization that can step into the CFO position without having to skip a beat. Walt knows DSL.net inside and out and he has been a major contributor to the Company."

Pickle, who has been CEO since April 2004, will be taking on the familiar dual responsibilities of president and chief executive officer. He is a former president and CEO of Velocita Corporation and his background also includes dual roles as president and chief operating officer of Teligent, UUNet and MFS Communications.

The Pickle and Keisch appointments fill two vacancies created by the recent resignations of the Company's former president and former CFO, who have both accepted senior management positions with organizations outside the telecommunications industry.

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, DS-3 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).

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