Change Orders

The Change Order section contains descriptions of the business functionality of the Number Portability Administration Center (NPAC) Service Management System (SMS) as defined by the Number Portability Industry Forum (NPIF).  The NPIF was formerly known as the Local Number Portability Administration Working Group (LNPA WG) until November 2020 when the group was restructured.  Change Orders created/managed prior to the restructuring are identified with ‘NANC’ before the Change Order number.  The NPIF has a direct relationship to the processes and systems that each Service Provider uses to participate in Number Portability. 

When a change in the NPAC software design is discussed at the NPIF, 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.  Doc Only Change Orders may also be utilized to update Industry Specification(s) as required.

In this section of the NPIF web site, all Change Orders ever considered are listed. The final Change Order document and the NPIF discussion notes, the Change Order status, and the identity of the software release in which the change order was implemented, are provided in the Change Order Summaries located below.

The status of a Change Order may be either Closed, Open, Requested, or Implemented. 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.
  • Requested – The NPIF has reached agreement on the Change Order and either an SOW may be requested and/or the requirements updates (Doc Only) will be included in a future version of the Industry Specification(s).
  • Implemented – The Change Order was adopted and has been implemented in the NPAC system.

Summary & Guidelines


Title Date Originated Description Status Documents
NANC 454 05/07/2013 Remove Unused Message from the NPAC Implemented Download
NANC 453 05/08/2013 Change Definition and Disallow Use of Inactive SPID Implemented Download
NANC 452 11/20/2012 Ethernet Connectivity to the NPAC Implemented Download
NANC 451 11/21/2012 Doc-Only Change Order: GDMO Updates Implemented Download
NANC 450 06/04/2012 Doc-Only Change Order: FRS/IIS Updates Implemented Download
NANC 449 02/23/2012 Active-Active SOA connection to NPAC – same SPID Closed Download
NANC 448 11/09/2011 NPAC Sunset of Non-EDR Implemented Download
NANC 447 11/01/2011 NPAC Support for CMIP over TCP/IPv6 Open Download
NANC 446 07/12/2011 Pending SV Interference Implemented Download
NANC 445 06/22/2011 Doc-Only Change Order: FRS Updates Implemented Download
NANC 444 03/16/2011 LTI Enhancements Implemented Download
NANC 443 01/31/2010 Doc-Only Change Order: ASN.1 Update Implemented Download
NANC 442 01/13/2010 Pseudo-LRN Implemented Download
NANC 441 09/15/2009 FCC Order – New SP Medium Timer Indicator and Old SP Medium Timer Indicator Implemented Download
NANC 440 09/15/2009 FCC Order – Medium Timers Implemented Download
NANC 439 08/18/2009 Doc-Only Change Order: FRS Updates Implemented Download
NANC 438 07/15/2009 Last Alternative SPID Implemented Download
NANC 437 01/08/2009 Multi-Vendor NPAC SMS Solution Closed Download
NANC 436 08/22/2008 Optional Data – alternative End User Location and alternative Billing ID Implemented Download
NANC 435 06/09/2008 URI Fields (SMS) Implemented Download
NANC 434 03/12/2008 VoIP SP Type Implemented Download
NANC 433 03/12/2008 VoIP SV Type Implemented Download
NANC 432 03/12/2008 URI Fields (Presence) Closed Download
NANC 431 03/12/2008 URI Fields (PoC) Closed Download
NANC 430 03/12/2008 URI Fields (MMS) Implemented Download

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