Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the use in this Amendment No. 1 to Registration Statement No. 333-174546 of our reports dated March 16, 2011 relating to the consolidated financial statements and consolidated financial statement schedule of PAETEC Holding Corp. and subsidiaries (the “Company”) (which report expresses an unqualified opinion and includes an explanatory paragraph relating to the acquisition of Cavalier Telephone Corporation on December 6, 2010 and the acquisition of McLeodUSA Incorporated on February 8, 2008), and the effectiveness of the Company’s internal control over financial reporting, appearing in the Prospectus, which is part of this Registration Statement.

We also consent to the reference to us under the heading “Experts” in the Prospectus, which is part of this Registration Statement.

/s/ Deloitte & Touche LLP

Rochester, New York

June 6, 2011