1. NANC Report Numbering Oversight Working Group (NOWG) July 18, 2006 Co-Chairs: Rosemary Emmer, Sprint Nextel Karen Riepenkroger, Sprint Nextel Natalie McNamer, T-Mobile

2. 07/18/2006NOWG NANC Report2 Contents NeuStar Notification of recent changes to Board of Directors Summary - NANPA 2005 Performance Report Summary - PA 2005 Performance Report Attachments - Tracking Documents -NANPA 2005 Preliminary Performance Evaluation Report -PA 2005 Preliminary Performance Evaluation Report Meeting Schedule

3. 07/18/2006NOWG NANC Report3 NeuStar Notification of recent changes to Board of Directors On June 21, 2006, NeuStar notified the Wireline Competition Bureau, Federal Communications Commission regarding changes to the NeuStar, Inc. (NeuStar) Board of Directors. The two new members, Andre Dahan and Ross Ireland, were elected to the NeuStar Board of Directors on Wednesday, June 14, 2006. Mr. Joseph P. Landy and Mr. Henry Geller. Both Mr. Dahan and Mr. Ireland are independent members of NeuStars Board. Mr. Dahan currently serves as a director of Redbend Software and IXI Mobile. Mr. Ireland is retired and serves as a director of ASSIA Corporation. The addition of these two new members and the exiting of Mr. Landy and Mr. Geller were the only changes to the Board. We attach for your records a list of the current members of the NeuStar Board of Directors. With these changes, Warburg, Pincus & Co. (Warburg) no longer has a representative on NeuStars Board of Directors. Additionally, Warburg has decreased its ownership in NeuStar. Warburgs equity ownership of NeuStar is less than five percent.

4. 07/18/2006NOWG NANC Report4 NeuStar Notification of recent changes to Board of Directors Chairman Atkinson directed the Numbering Oversight Working Group (NOWG) to consider this notification on behalf of the NANC the same day. The NOWG was tasked with providing feedback to the NANC during the July, 2006 NANC meeting of any issues or concerns regarding the contents of this notification. The NOWG reviewed the NeuStar notification to the FCC regarding the changes to the Board of Directors and determined the changes with in the parameters of the Safe Harbor Order. No further action by the NOWG is required.

5. 07/18/2006NOWG NANC Report5 Summary 2005 PA Performance Report Total responses reflect a single survey per entity Increase volume could be related to number of entities participating in pooling and customer satisfaction level The number of respondents to the 2005 PA Survey was down slightly from 2004 for the industry and there was a very small increase in responses from regulators. The following chart reflects the trend of respondents since the inception of the PA performance survey:

6. 07/18/2006NOWG NANC Report6 Summary 2005 PA Performance Report The NOWG considered, reviewed and analyze the following data: –2005 Performance Survey Responses including comments –PA Operational Review Presentations –PA Performance and Reports to the NANC –PA 2005Annual Report –PA responses to NOWG clarifying questions –Other NOWG observations

7. 07/18/2006NOWG NANC Report7 Summary 2005 PA Performance Report Based on the PAs 2005 performance data, the PAs rating for the 2005 performance year was More than Met. This rating is defined below:

8. 07/18/2006NOWG NANC Report8 Summary - NOWG Observations 2005 PA Performance Report Pooling Administration (Section A) There were six questions in this section to which respondents provided ratings that fell within the Met and More than Met ranges. There were over 130 cumulative responses rating PAs performance as Exceeded, 120 cumulative responses as More than Met and over 150 cumulative responses as Met. Implementation Management (Section B) There were three questions in this section to which respondents provided ratings that were weighted in the Met and More than Met ranges. There were over 30 cumulative responses rating PAs performance as Exceeded, 10 cumulative responses as More than Met and over 20 cumulative responses as Met. Pooling Administration System (PAS) (Section C) There were four questions in this section to which respondents provided ratings that were weighted in the Met and More than Met ranges. There were over 75 cumulative responses rating PAs performance as Exceeded, 80 cumulative responses as More than Met and over 130 cumulative responses as Met..

9. 07/18/2006NOWG NANC Report9 Summary - NOWG Observations 2005 PA Performance Report Overall Assessment of Pooling Administrator (PA) (Section D) There were five questions in this section to which respondents provided ratings that were weighted in the Met and More than Met ranges. There were over 150 cumulative responses rating PAs performance as Exceeded, more than 110 cumulative responses as More than Met and over 130 cumulative responses as Met..

10. 07/18/2006NOWG NANC Report10 Summary – Survey Comments 2005 PA Performance Report Samples of the written comments received are provided: I cant say enough good things-these people are very good at what they do-respectful and pleasant. There are many rate centers where there isnt an adequate inventory in the pool. Only issue we continue to have is the timeout feature – would like to see it increased. Everyone at NeuStar continues to do an outstanding job of effectively managing resources and lending assistance. The personnel at the PA are always very professional, helpful courteous and friendly.

11. 07/18/2006NOWG NANC Report11 Summary - NOWG Observations 2005 PA Performance Report Level of satisfaction revealed: Significant praise for PA staff was a consistent theme throughout the survey results Responsive to challenges Cooperative with State Regulators, FCC and NANC. Proactively introduced new INC issues and contributions

12. 07/18/2006NOWG NANC Report12 Summary - Suggestions 2005 PA Performance Report S uggested areas for the PAs continuous improvement were identified: –PA to develop an Issue Tracking Document (ITD as a formal tracking document – suggested ITD items are: 1.Monthly meetings with the NOWG 2.Proactively manage rate center inventories to ensure resources are available when needed 3.PA should initiate new ideas and processes for keeping pools replenished 4.Customer focus vs. contractual focus 5.Pass through capability from PAS to NAS

13. 07/18/2006NOWG NANC Report13 Summary 2005 NANPA Performance Report Total responses reflect a single survey per entity Reduced volume could be related to PA Survey and high Customer satisfaction level The number of respondents to the 2005 NANPA Survey was down slightly from 2004 for the industry and there was a very small increase in responses from regulators. The following chart reflects the trend of respondents since the inception of the NOWG performance survey:

14. 07/18/2006NOWG NANC Report14 Summary 2005 NANPA Performance Report The NOWG considered, reviewed and analyzed the following data: –2005 Performance Survey Responses and Comments –NANPA Operational Review Presentations –Performance Improvement Plan (PIP) results –NANPA responses to NOWG clarifying questions –NANPA 2005 Annual Report –NOWG Observations –NANPA Performance and Reports at the NANC –NANPA/NOWG Monthly Standing Agenda Meeting Materials

15. 07/18/2006NOWG NANC Report15 Summary 2005 NANPA Performance Report Based on the NANPAs 2005 performance data, the NANPAs rating for the 2005 performance year was Exceeded. This rating is defined below:

16. 07/18/2006NOWG NANC Report16 Summary - NOWG Observations 2005 NANPA Performance Report CO Code Administration (Section A) There were 8 questions in this section, which respondents provided ratings that were weighted in the Met and More than Met range. There were over 98 cumulative responses rating NANPAs performance as Exceeded, 70 cumulative responses as More than Met and over 110 cumulative responses as Met. NPA Relief Planning (Section B) There were 9 questions in this section, which respondents provided ratings that were weighted in the Met and More than Met range. There were over 50 cumulative responses rating NANPAs performance in this section as Exceeded, over 55 cumulative responses as More than Met, and over 70 cumulative responses as Met. Numbering Resource Utilization and Forecast (NRUF) (Section C) There were 7 questions in this section, which respondents provided ratings that were weighted in the Met and More than Met range. There were over 70 cumulative responses rating NANPAs performance in this section as Exceeded, over 70 cumulative responses as More than Met and over 70 cumulative responses as Met..

17. 07/18/2006NOWG NANC Report17 Summary - NOWG Observations 2005 NANPA Performance Report Other NANP Resources (Section D) There were 8 questions in this section, which respondents provided ratings that were weighted in the Met range. There were over 5 cumulative responses rating NANPAs performance in this section as Exceeded, over 10 cumulative responses as More than Met and over 15 cumulative responses as Met. Overall Assessment of the NANPA (Section E) There were 7 questions in this section, which respondents provided ratings. There were over 110 cumulative responses rating NANPAs performance in this section as Exceeded, over 100 cumulative responses as More than Met and over 90 cumulative responses as Met..

18. 07/18/2006NOWG NANC Report18 Summary – Survey Comments 2005 NANPA Performance Report The NOWG concluded that the written comments were not indicative of any NANPA performance issues and in some cases provided significant praise for individual NANPA staffers. Samples of the written comments received are provided below : NANPA is very organized and efficient and a pleasure to work with. Web site is difficult to navigate and not user friendly. Information is buried deep within the web site and the search function is not effective. The personnel at the NANPA have always been responsive and helpful. There really needs to be a mechanized pass through of the Part 1 from the PA to NANPA. Manual forms are not as efficient. NeuStar continues to do an outstanding job of efficiently, effectively and professionally managing the NANPA function.. All individual comments can be found in the appendix.

19. 07/18/2006NOWG NANC Report19 Summary – NOWG Observations 2005 NANPA Performance Report High level of satisfaction revealed: Significant praise for NANPA staff was a consistent theme throughout the survey results Cooperation with the NANC, NOWG, the FCC and State Regulators has been exceptional Displayed leadership, initiative, outstanding professionalism and expertise Proactively introduced new INC issues and contributions.

20. 07/18/2006NOWG NANC Report20 Summary – Suggestions 2005 NANPA Performance Report Two suggested Performance Improvement Plan (PIP) additions for 2006: Pass through capability from NAS to PAS Advanced search capabilities and user friendly web access

21. 07/18/2006NOWG NANC Report21 NOWG Time Estimate The following is a rough estimate of the total amount of time the NOWG collectively and NOWG members individually spent to complete the various NANPA and PA 2005 performance evaluation steps: NANPA395 hrs PA608 hrs Total hours spent on these projects: 1,003

22. 07/18/2006NOWG NANC Report22 NOWG May - July 2006 Meeting Schedule Contact any of the Co-Chairs for complete meeting or conference call details Karen.S.Riepenkroger@sprint.com or Rosemary.Emmer@print.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.comRosemary.Emmer@print.comNatalie.McNamer@t- mobile.com NOWG meeting notes and documents are posted at nanc-chair.org MonthActivity July 26 NANPA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs July 27 PA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs August 16 NANPA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs August 31 PA Standing Agenda Call with NOWG - Conference Call 2pm Eastern, 2 hrs