NANC Report Numbering Oversight Working Group (NOWG)

1. NANC Report Numbering Oversight Working Group(NOWG) March 9, 2011 Tri-Chairs: Laura Dalton, Verizon Communications Natalie McNamer, T-Mobile USA Gwen Zahn, Verizon Wireless

2. Contents • 2010 NANPA and PA Performance Surveys • Schedule of Performance Evaluation Process • PA Change Orders • p-ANI Change Order • NANPA Change Orders • Administrators’ Annual Reports • NOWG Participating Companies • Meeting Schedule

3. 2010 NANPA and PA Performance Surveys • The NOWG implemented the use of an online survey tool for the first time. • Surveys submitted by e-mail in Word documents were also accepted. • Survey response period was January 3, 2011 until February 15, 2011. • Two reminder notices were sent by each of the Administrators.

4. 2010 NANPA and PA Performance Surveys • Preliminary count of surveys received: • NANPA: • 27 Regulatory Entities • 46 Service Providers and Other Entities • PA: • 28 Regulatory Entities • 83 Service Providers and Other Entities • Totals are preliminary due to consolidation of responses to meet the one survey per entity requirement.

5. NANPA and PA 2010 Performance Evaluation Process • The following table provides the timeline of NOWG activities for completing the NANPA and PA annual performance reports.

6. PA Change Orders

7. p-ANI Change Order • PA Change Order # 19 for the Permanent Routing Number Administrator - greater in scope than other change orders. • Required additional NOWG consideration. • Reviewed Change Order against INC Guidelines. • Reviewed internally by member companies. • Additional NOWG meetings held to develop clarifying questions for the PA and review responses.

8. NANPA Change Orders

9. Administrators’ Annual Reports • The NANPA and PA provided their respective 2010 Annual Reports to the NOWG for review prior to publication. • Individual NOWG members’ comments, questions, and suggestions were provided to the NANPA and PA.

10. NOWG Participating Companies • AT&T • Centurylink • Cox Communications • One Communications • Qwest Communications • Sprint Nextel • T-Mobile USA • Verizon Communications / Verizon Wireless • Windstream Communications • XO Communications

11. NOWG Upcoming Meeting Schedule - 2011

12. NOWG Meeting Schedule • Contact any of the Tri-Chairs for complete meeting or conference call details: Laura.R.Dalton@Verizon.com Natalie.McNamer@T-Mobile.com Lauren.Zahn@VerizonWireless.com • Other meetings for the NOWG may be scheduled as needed beyond what has been identified in this list. • NOWG meeting notes and documents are posted at www.nanc-chair.org