Effective August 1, 2017 the role of Change Management Administrator (CMA) of the Local Number Portability Administration Working Group (LNPAWG) for all US Regions was transferred to Telcordia Technologies, Inc., d/b/a iconectiv.

To contact the iconectiv CMA or to be added/removed from the LNPAWG distribution list please email [email protected].

Please note that on or about September 30, 2017 the collection and history of industry documents will be transferred to https://numberportability.com/. Stay tuned for further updates at upcoming LNPAWG meetings and conference calls.


NANC Change Orders

The NANC Change Order section contains descriptions of the business functionality of the Number Portability Administration Center (NPAC) Service Management System (SMS) as defined by the Local Number Portability Administration Working Group (LNPA WG), which has a direct relationship to the processes and systems that each Service Provider uses to participate in LNP.

When a change in the NPAC software design is discussed at  the LNPA WG, the proposed change eventually is described in the form of a change order.  The change order document describes the business need for the software change and, at a high level, the software changes required to implement the proposal.  As discussions progress, the technical portion of the change order is expanded to document both new software requirements and changes to existing software requirements that would result if the Change Order were implemented.  (Operational impacts of a change order are described in "Method & Procedures" documents issued before the change order is implemented.)  In this section of the NPAC.com web site, all change orders ever considered are listed.  The final change order document and the LNPA WG discussion notes, the change order's status, and the identity of the software release in which the change order was implemented are provided here.

 The status of a change order may be either Closed, Open, Implemented, or Requested.  These terms are defined as follows:

  • Closed – The change order was considered and rejected.
  • Open – The change order has been considered and there may be further discussion.
  • Implemented – The change order was adopted and has been implemented in the NPAC system.
  • Requested – The LNPA WG has asked the NAPM LLC to arrange for the change order's implementation, but the change order is not yet implemented.

Change Order Summary sent to LNPA WG distribution --> Change Orders

Change Order Implemented List sent to LNPA WG distribution --> Implemented Change Orders

Change Order Prioritization Guidelines --> Guidelines Document

NANC Change Orders

Change Order Date Originated Description Status
NANC 138 08/11/1997 Definition of Cause Code Values – REVISITED Implemented
NANC 137 08/13/1997 Disconnect Active SV Behavior Clarification Implemented
NANC 136 08/10/1997 Download File Carriage Return Clarification Implemented
NANC 135 08/10/1997 Download File Clarifications Implemented
NANC 134 08/10/1997 Disconnect Action Behavior Discrepancies Implemented
NANC 133 08/05/1997 Audit Object Definition Implemented
NANC 132 08/05/1997 Update FRS Data Models Closed
NANC 131 08/05/1997 LRN-DownloadData Modification Implemented
NANC 130 08/05/1997 Notification to Old SP on Subsequent Port Implemented
NANC 129 08/05/1997 End User Location Type and Value Definition Closed
NANC 128 08/05/1997 R7-111.2 Requirement Interpretation Closed
NANC 127 08/05/1997 Use of Range Operations from the SOA Closed
NANC 126 07/17/1997 Use of Time in the Due Date Implemented
NANC 125 07/25/1997 Intra Service Provider Port – Port to Original Closed
NANC 124 07/17/1997 Null Character Padding Implemented
NANC 123 07/17/1997 IIS Section 10 Flow Clarification Implemented
NANC 122 07/17/1997 Enhanced Key Expiration Strategy Closed
NANC 121 07/16/1997 lnpSpecificInfo attribute Closed
NANC 120 06/27/1997 Filter Deletion Closed
NANC 119 06/27/1997 Additional Requirement to View State Portability Area Closed
NANC 118 06/27/1997 CMIP Notification Recovery by Time Range Implemented
NANC 117 07/26/1997 Generalized Time Issue Closed
NANC 116 07/27/1997 Filter Handling Issue between IBM and DSET Closed
NANC 115 06/26/1997 Country Code Discrepancy Implemented
NANC 114 06/23/1997 Download subscription-version-id optional Implemented