from SC 13D
1 page
<page> Exhibit 1 Joint Filing Agreement in Accordance With Rule 13d-1 (F) Promulgated Under the Securities Exchange Act of 1934, as Amended, the Undersigned Hereby Agree to the Joint Filing With All Other Reporting Persons Listed Below on Behalf of Each of Them of a Statement on Schedule 13d (Including Any Amendments Thereto) With Respect to the Class a Common Stock, Par Value $0.01 Per Share, of US Lec Corp, a Delaware Corporation. the Undersigned Further Consent and Agree to the Inclusion of This Agreement as an Exhibit to Such Schedule 13d. This Agreement May Be Executed in Any Number of Counterparts, All of Which Taken Together Shall Constitute One and the Same Instrument. [Remainder of Page Intentionally Left Blank.] <page> the Undersigned Have Executed This Agreement as of the 28th Day of February 2001. Thomas H. Lee Equity Fund IV, L.P. By: Thl Equity Advisors IV, LLC By: /S/ Anthony J. Dinovi Name: Anthony J. Dinovi Title: Managing Director Thomas H. Lee Foreign Fund IV, L.P. By: Thl Equity Advisors IV, LLC By: /S/ Anthony J. Dinovi Name: Anthony J. Dinovi Title: Managing Director Thomas H. Lee Foreign Fund IV-B, L.P. By: Thl Equity Advisors IV, LLC By: /S/ Anthony J. Dinovi Name: Anthony J. Dinovi Title: Managing Director Thl Equity Advisors IV, LLC By: /S/ Anthony J. Dinovi Name: Anthony J. Dinovi Title: Managing Director Thomas H. Lee Charitable Investment Limited Partnership By: /S/ Thomas H. Lee Name: Thomas H. Lee Title: General Partner <page> Affiliate Purchasers as Listed on Schedule a to This to Schedule 13d, Pursuant to Powers of Attorney Executed in Favor of and Granted and Delivered to Anthony J. Dinovi. By: /S/ Anthony J. Dinovi Attorney-In-Fact for All Affiliate Purchasers Putnam Investment Holdings, LLC By: /S/ William H. Woolverton Name: William H. Woolverton Title: Managing Director and General Counsel
