NANC Report Numbering Oversight Working Group (NOWG) April 17, 2007 Co-Chairs: Paula Hustead, Windstream Natalie McNamer, T-Mobile USA Karen Riepenkroger, Sprint Nextel

4/17/2007NOWG NANC Report2 Contents NANPA and PA 2006 Performance Surveys Update Performance Evaluation Timeline NANPA Change Order NOWG Meeting Schedule

4/17/2007NOWG NANC Report3 NANPA and PA 2006 Performance Evaluation Surveys Update The NOWG extended the due date for the surveys to March 14, 2007 Reminder s sent by the Administrators Survey responses

4/17/2007NOWG NANC Report4 NANPA and PA 2006 Performance Evaluation Surveys Received NANPA Surveys received –13 Service Providers –18 Regulatory Agencies PA Surveys received –59 Service Providers –23 Regulatory Agencies

4/17/2007NOWG NANC Report5 NANPA/PA 2006 Performance Evaluation Schedule DateActivity February 28, 2007NANPA and PA Surveys Due March 26 – 27, 2007PA Operational Review in Concord, CA April 11-12, 2007NANPA Operational Review in Sterling, VA May 21-23, 2007NOWG Meeting in Denver to Prepare NANPA and PA Performance Reports June 6, 2007 NOWG Share Preliminary Results with the FCC, the NANPA and the PA in Washington, DC June 2007 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.

4/17/2007NOWG NANC Report6 NANPA Change Order #10 Recommendation Change Order #10 is a result of an NOWG recommendation regarding the codes (NXXs) that are in a status of Pooling Set-Aside be included in the Available status on various reports (i.e., Central Office Code Assignment Activity Record [CAA Report]) instead of their current placement in the Unavailable Code status. NOWG reviewed and recommended that this change order be approved. Recommendation was provided to the FCC on March 19, 2007.

4/17/2007NOWG NANC Report7 NOWG Meeting Schedule Contact any of the Co-Chairs for complete meeting or conference call details or or Mobile.com (Other meetings for the NOWG may be scheduled as needed beyond what has been identified in this list) Mobile.com NOWG meeting notes and documents are posted at nanc-chair.org MonthActivity April 19 PA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs April 24 NANPA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs May 15 NANPA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs May 17 PA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hr May 21- May 23 NOWG Face-to-Face Meeting Performance Evaluations Working Session - Denver CO June 6 NOWG share preliminary performance evaluation report with FCC, NANPA and PA