US LEC Presents at the Jefferies 4th Annual Communications Conference

CHARLOTTE, N.C., Sept. 7  /PRNewswire-FirstCall/ -- US LEC Corp. (NASDAQ:CLEC), a full-service provider of IP, data and voice solutions to businesses and enterprise organizations throughout the Eastern United States, will be participating in the Jefferies 4th Annual Communications Conference in New York City on September 11, 2006.

J. Lyle Patrick, executive vice president and chief financial officer of US LEC commented, "US LEC has continued to successfully execute a solid business plan.  Our progress in the second quarter was highlighted by achieving record end-customer revenues of $93 million, EBITDA of $15 million and an industry leading outstanding monthly retention rate of over 99%.  In addition, we have continued to expand the availability of our data product portfolio throughout our footprint.  Presenting at this important industry event gives us a great opportunity to highlight our success to those looking to invest in the competitive carrier space."

In addition, there will be a discussion of the pending merger with PAETEC Communications that is scheduled to close in the fourth quarter of this year.

A live broadcast of the presentation will be available online at http://www.uslec.com/. To listen to the presentation, which is scheduled to begin at 1:45 PM Eastern Time, please visit the web site at least 15 minutes prior to the start time to download and install any necessary audio software.

About US LEC

Based in Charlotte, N.C., US LEC is a full service provider of IP, data and voice solutions to medium and large businesses and enterprise organizations throughout 16 Eastern states and the District of Columbia. US LEC offers advanced, IP-based, data and voice services such as MPLS VPN and Ethernet, as well as comprehensive Dynamic T(SM) VoIP-enabled services and features. The company also offers local and long distance services and data services such as frame relay, Multi-Link Frame Relay and ATM. US LEC provides a broad array of complementary services, including conferencing, data backup and recovery, data center services and Web hosting, as well as managed firewall and router services for advanced data networking. US LEC also offers selected voice services in 27 additional states and provides enhanced data services, selected Internet services and MegaPOP(R) (local dial-up Internet access for ISPs) nationwide. For more information about US LEC, visit http://www.uslec.com/

Except for the historical information contained herein, this report contains forward-looking statements, subject to uncertainties and risks, including the demand for US LEC's services, the ability of the Company to introduce additional products, the ability of the Company to successfully attract and retain personnel, competition in existing and potential additional markets, uncertainties regarding its dealings with ILECs and other telecommunications carriers and facilities providers, regulatory uncertainties, the possibility of adverse decisions related to reciprocal compensation and access charges owing to the Company, as well as the Company's ability to begin operations in additional markets. These and other applicable risks are summarized in the "Caution Regarding Forward-Looking Statements" and "Risk Factors" sections and elsewhere in the Company's Annual Report on Form 10-K for the period ended December 31, 2005, and in subsequent reports, which are on file with the Securities and Exchange Commission.

US LEC is a registered service mark of US LEC Corp. US LEC and Design (R) is a registered service mark and trademark of US LEC Corp.   StarNet(TM) and MegaPOP(R) are service marks of US LEC Corp.

Media Contact, Brian Crenshaw, 704-319-6875,  , or Investor Contact, James Stawski, 704-319-1189,  

DATASOURCE: US LEC Corp.



CONTACT:  Media, Brian Crenshaw, [phone], or ,

or Investors, James Stawski, [phone], or , both of

US LEC Corp.



Web site:  http://www.uslec.com/ 

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