Wireless Local Number Portability and Pooling Phase 2 Implementation Guideline

1. Rev. 5 JUN JUL AUG SEP OCT NOV DEC JUL MAR MAY FEB AUG APR JUN JAN INDUSTRY Wireless Local Number Portability and PoolingPhase 2 Implementation Guideline 2002 2003 SERVICE PROVIDER NPAC AGREE-MENT COM-PLETE 07/02 INTERNAL DEVELOPMENT & TESTING for PORTING and POOLING * INTERNAL DEVELOPMENT & TESTING for PORTING * 08/02 04/03 NOTE: ALL DATES ARE THE BEGINNING OF THE MONTH * refer to the North American Numbering Council Wireless Number Portability Operations Risk Assessment Report: Launching Wireless Pooling or Porting without Ubiquitous Separation of the MIN and MDN

2. Rev. 5 JUL OCT AUG JUN SEP NOV DEC APR FEB JAN MAR MAY JUN JUL AUG INDUSTRY Wireless Local Number Portability and PoolingPhase 2 Implementation Guideline 2002 / 2003 (con’t) SERVICE PROVIDER INTER-CARRIER TEST LOGISTICS 08/03 INTERCARRIER TESTING 09/03 POOLING DEPLOYMENT and FINAL ADJUST-MENTS PORTING DEPLOYMENT and FINAL ADJUSTMENTS 09/03 to 11/24/03 04/02 11/24/02 NOTE: ALL DATES ARE THE BEGINNING OF THE MONTH