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 163 09/25/1997 NPA Split Implementation Implemented
NANC 162 09/26/1997 TN-Attribute as GET-Replace Implemented
NANC 161 09/19/1997 Subsequent Port Flow Implemented
NANC 160 09/17/1997 Single TN in a Range Create Implemented
NANC 159 09/17/1997 Single TN in a Range Create Implemented
NANC 158 09/17/1997 Other Notification Recovery Implemented
NANC 157 09/10/1997 Key exchange interval default value Implemented
NANC 156 09/10/1997 Flow Modification Implemented
NANC 155 08/05/1997 End User Location Type and Value Definition Implemented
NANC 154 09/08/1997 Implementation of Key Validation Implemented
NANC 153 10/01/1997 Download file creation by SP for application of Filters Closed
NANC 152 09/04/1997 Audit Number of TNs Notification Implemented
NANC 151 09/04/1997 TN and Number Pool Block Addition to Notifications Implemented
NANC 150 08/27/1997 Subscription Version M-Delete to LSMS – Continued Closed
NANC 149 01/01/1998 Use of Time in the Due Date - Continued Closed
NANC 148 08/25/1997 LNPType in SV Object Creation Notification Closed
NANC 147 08/27/1997 Version ID Rollover Strategy Implemented
NANC 146 08/27/1997 SP Contact Data Handling Implemented
NANC 145 08/27/1997 Notification Recovery Flows Implemented
NANC 144 08/27/1997 Filter implementation in the NPAC SMS Implemented
NANC 143 08/27/1997 Subscription Version M-Delete to LSMS Implemented
NANC 142 08/18/1997 Port to Original Flow Clarifications Implemented
NANC 141 08/18/1997 Cancel of Disconnect Pending Implemented
NANC 140 08/18/1997 Concurrence Timer Values Implemented
NANC 139 08/12/1997 Network Data Download to SOA Implemented