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 040 03/20/1997 SOA flows for NPA-NXX filter management Implemented
NANC 039 03/20/1997 Section 4.2.2 Correction Implemented
NANC 038 03/20/1997 IIS Flow Clarification Implemented
NANC 037 03/18/1997 Primitive Error List Modification Implemented
NANC 036 03/18/1997 Low-tech Interface Requirements Implemented
NANC 035 03/17/1997 ContactPagerPin ASN.1 Modification Implemented
NANC 034 03/17/1997 AuditServiceProvIdRange ASN.1 Modification Implemented
NANC 033 03/17/1997 IIS subscriptionAuditBehavior Modification Implemented
NANC 032 03/17/1997 IIS serviceProvNPA-NXX-Behavior Modification Implemented
NANC 031 03/17/1997 IIS subscriptionOld/NewSP-DueDate Behavior Modification Implemented
NANC 030 03/17/1997 Attribute Behavior Updates Implemented
NANC 029 03/17/1997 IIS subscriptionLNPType Behavior Modification Implemented
NANC 028 03/17/1997 IIS subscriptionVersionBehavior Modification Implemented
NANC 027 03/17/1997 IIS servProvLRN-Behaviour Modification Implemented
NANC 026 03/17/1997 IIS Flow Modification Implemented
NANC 025 03/17/1997 IIS Flow Modification Implemented
NANC 024 03/17/1997 IIS Flow Modification Implemented
NANC 023 03/17/1997 IIS 6.2.1 Flow Modification Implemented
NANC 022 03/05/1997 IIS 6.5.6 Flow modification Implemented
NANC 021 03/05/1997 IIS Section 6 note modification Implemented
NANC 020 03/05/1997 Addition of InpSpecificInfoParameter Implemented
NANC 019 03/05/1997 Rewording of M-CANCEL-GET note Implemented
NANC 018 03/05/1997 ASN.1 Comment for NetworkDownloadCriteria Implemented
NANC 017 03/05/1997 ASN.1 addition of word EXPLICT for tagging Implemented
NANC 016 03/05/1997 Retry wording clarification in IIS Implemented