39 Miss. Code. R. 1-23-104
The CLEC shall send a letter to the Number Portability Administration Center (NPAC) authorizing NPAC to provide concurrence for use on telephone numbers ported after the CLEC exits.
The CLEC shall apply any deposit held to the customer's final bill and a refund will be issued within forty-five (45) calendar days of issuance of the final bill if the deposit amount exceeds the final bill amount.
All CLECs shall provide a copy of the filed petition to all 911 entities affected by the discontinuance no later than five (5) calendar days after filing.
The CLEC shall request removal of all Local Service Freezes on existing or affected accounts to allow migration processing concurrent with the sixty (60) day notice.
The CLEC shall notify the North American Numbering Plan Administrator ("NANPA") and/or the Number Pooling Administrator and provide the requisite documents for the relinquishment of NXX codes and/or thousand blocks to the NANPA, the Pooling Administrator, and the Executive Secretary of the Mississippi Public Service Commission. In addition, the code holder or block holder shall abide by industry guidelines (Central Office Code Assignment Guidelines and/or the Thousands-Block Number (NXX-X) Pooling Administrator Guidelines).
The CLEC shall retain an adequate number of personnel able to process all local service requests received prior to the final discontinuance date.
39 Miss. Code. R. 1-23-104