UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: June 23, 2010 4:00 P.M.
Form: S-4
CIK: 0001372041
Company Name: PAETEC Holding Corp.
File Number: 333-167138
CIK: 0001118044
Company Name: QUAGGA CORP
File Number: 333-167138-27
CIK: 0001054290
Company Name: US LEC LLC
File Number: 333-167138-26
CIK: 0001307329
Company Name: US LEC of Pennsylvania LLC
File Number: 333-167138-25
CIK: 0001307330
Company Name: US LEC of South Carolina LLC
File Number: 333-167138-24
CIK: 0001307331
Company Name: US LEC of Tennessee LLC
File Number: 333-167138-23
CIK: 0001307335
Company Name: US LEC of Virginia L.L.C.
File Number: 333-167138-22
CIK: 0001472232
Company Name: Allworx Corp.
File Number: 333-167138-21
CIK: 0001472231
Company Name: Technology Resource Solutions, Inc.
File Number: 333-167138-20
CIK: 0001139900
Company Name: MPX INC
File Number: 333-167138-19
CIK: 0001492547
Company Name: U.S. Energy Partners LLC
File Number: 333-167138-18
CIK: 0001492537
Company Name: PAETEC Realty LLC
File Number: 333-167138-17
CIK: 0001307328
Company Name: US LEC of North Carolina LLC
File Number: 333-167138-16
CIK: 0001307321
Company Name: US LEC Communications LLC
File Number: 333-167138-15
CIK: 0000919943
Company Name: McLeodUSA LLC
File Number: 333-167138-14
CIK: 0001388938
Company Name: McLeodUSA Telecommunications Services, L.L.C.
File Number: 333-167138-13
CIK: 0001388935
Company Name: McLeodUSA Information Services LLC
File Number: 333-167138-12
CIK: 0001388937
Company Name: McLeodUSA Purchasing, L.L.C.
File Number: 333-167138-11
CIK: 0001069588
Company Name: PAETEC Corp.
File Number: 333-167138-10
CIK: 0001421863
Company Name: PAETEC Integrated Solutions Group, Inc.
File Number: 333-167138-09
CIK: 0001421919
Company Name: PAETEC iTel, L.L.C.
File Number: 333-167138-08
CIK: 0001421862
Company Name: PaeTec Software Corp.
File Number: 333-167138-07
CIK: 0001421860
Company Name: PaeTec Communications, Inc.
File Number: 333-167138-06
CIK: 0001421859
Company Name: PaeTec Communications of Virginia, Inc.
File Number: 333-167138-05
CIK: 0001307319
Company Name: US LEC of Alabama LLC
File Number: 333-167138-04
CIK: 0001307324
Company Name: US LEC of Florida LLC
File Number: 333-167138-03
CIK: 0001307325
Company Name: US LEC of Georgia LLC
File Number: 333-167138-02
CIK: 0001307327
Company Name: US LEC of Maryland LLC
File Number: 333-167138-01