1. NANC Report Numbering Oversight Working Group (NOWG) February 22, 2008 Co-Chairs: Paula Hustead, Windstream Natalie McNamer, T-Mobile USA Karen Riepenkroger, Sprint Nextel

2. 02/22/2008NOWG NANC Report2 Contents NANPA and PA 2007 Performance Surveys Update Performance Evaluation Timeline NANPA Technical Requirements Document NeuStar Acquisition NANPA/PA Change Orders Meeting Schedule

3. 02/22/2008NOWG NANC Report3 NANPA and PA 2007 Performance Evaluation Surveys Update The NOWG extended the due date for the surveys to February 15, 2008 Reminder emails were sent weekly by the Administrators resulting in increased responses

4. 02/22/2008NOWG NANC Report4 NANPA and PA 2007 Performance Evaluation Surveys Received NANPA Surveys received –36 Service Providers –19 Regulatory Agencies PA Surveys received –52 Service Providers –16 Regulatory Agencies

5. 02/22/2008NOWG NANC Report5 NANPA/PA 2007 Performance Evaluation Schedule DateActivity February 15, 2008NANPA and PA Surveys Due March 17 – 18, 2008PA Operational Review in Concord, CA April 9-10, 2007NANPA Operational Review in Sterling, VA May, 2008 NOWG Share Preliminary Results with the FCC, the NANPA and the PA in Washington, DC May, 2008 NOWG Presents Final Performance Reports on NANPA and PA at NANC Meeting The following table provides the timeline of NOWG activities for completing the NANPA and PA annual performance reports

6. 02/22/2008NOWG NANC Report6 NANPA Technical Requirements Document (TRD) Formal direction was received from the FCC on January 30, 2008 to review and propose revisions to the document Revisions due by February 29, 2008 NOWG is working diligently to meet this deadline and will request NANC approval via email

7. 02/22/2008NOWG NANC Report7 NeuStar Acquisition On January 14, 2008, NeuStar notified the Wireline Competition Bureau, Federal Communications Commission regarding changes to the NeuStar, Inc. (NeuStar) organizational structure with the acquisition of Webmetrics, Inc The NOWG reviewed the changes per our existing process Based on our review, the NOWG does not find any issues at this time

8. 02/22/2008NOWG NANC Report8 NeuStar Acquisition NOWG Basis for Evaluation: –Original neutrality requirements placed on NeuStar at its creation; Safe Harbor neutrality requirements Evaluation Process: –Select members of the NOWG reviewed and shared their findings on Webmetrics: products and services technologies/platforms affiliations with other companies corporate structure management competitors customers/target market Select members also reviewed publicly available information on Webmetrics, including financials, reviews and press

9. 02/22/2008NOWG NANC Report9 NANPA Change Order #15 Recommendation Change Order #15: NANP Administration System and the Pooling Administration System Interface NOWG reviewed and recommended that this change order be approved FCC approved on December 26, 2007

10. 02/22/2008NOWG NANC Report10 PA Change Order #1 Recommendation Change Order #1 Issue 519 Pool Replenishment (the response of the PA to the resolution of INC Issue 519 (same title) NOWG reviewed and recommended that this change order be approved Recommendation was provided to the FCC on December 26, 2007

11. 02/22/2008NOWG NANC Report11 NOWG Meeting Schedule Contact any of the Co-Chairs for complete meeting or conference call details Karen.S.Riepenkroger@sprint.com or Paula.Hustead@windstream.com or Natalie.McNamer@t- Mobile.com (Other meetings for the NOWG may be scheduled as needed beyond what has been identified in this list) Karen.S.Riepenkroger@sprint.comPaula.Hustead@windstream.comNatalie.McNamer@t- Mobile.com NOWG meeting notes and documents are posted at nanc-chair.org MonthActivity March 17-18 PA Operations Review - Concord, CA March 25 PA Standing Agenda Call with NOWG - Conference Call 1pm Eastern, 1 hrs March 25 NANPA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs April 9-10 NANPA Operations Review – Sterling, VA April 17 PA Standing Agenda Call with NOWG - Conference Call 1pm Eastern, 2 hr April 22 NANPA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs