EX-23 12 dex23.txt CONSENT OF DELOITTE & TOUCHE EXHIBIT 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement Nos. 333-78075, 333-61617, 333-42890 and 333-42976 of US LEC Corp. and subsidiaries on Form S-8 of our report dated February 21, 2002, appearing in the Annual Report on Form 10-K of US LEC Corp. and subsidiaries for the year ended December 31, 2001. /s/ DELOITTE & TOUCHE LLP Charlotte, North Carolina March 29, 2002