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 089 05/01/1997 Action Scoping and Filtering Support Implemented
NANC 088 05/01/1997 Id Naming attributes Non-zero Implemented
NANC 087 04/30/1997 RR5-39 requirement modification Closed
NANC 086 04/30/1997 Unique NPAC customer Ids Implemented
NANC 085 04/30/1997 Flow Modification Implemented
NANC 084 04/30/1997 LnpNetwork behavior update Implemented
NANC 083 05/01/1997 NPAC Time Synchronization Implemented
NANC 082 04/18/1997 Audit Download Filtered LSMS Closed
NANC 081 04/18/1997 Audit Download Filtered LSMS Closed
NANC 080 04/18/1997 Audit indication of SP’s not Audited Due to a Download Filter Closed
NANC 079 04/18/1997 Multiple SPIDs per Service Provider LSMS Closed
NANC 078 04/22/1997 OID usage and NpacAssociationUserInfo Implemented
NANC 077 04/16/1997 TimeRange ASN.1 Definition Implemented
NANC 076 04/07/1997 Purpose of subscriptionOldSP-DueDate Implemented
NANC 075 04/07/1997 GDMO for subscriptionVersionModifyBehavior BEHAVIOUR Implemented
NANC 074 04/07/1997 GDMO for subscriptionVersionNewSP-CreateBehavior BEHAVIOUR Implemented
NANC 073 04/14/1997 Universal Time format Implemented
NANC 072 04/13/1997 Scoped/Filtered GET of Network Data from SOA Implemented
NANC 071 04/13/1997 IIS key size specification Implemented
NANC 070 04/14/1997 FRS R5-26 Modify Subscription Version – Version Identification Implemented
NANC 069 04/14/1997 NANC 1.0 and IIS discrepancies resulting from Change Order #52 Implemented
NANC 068 R 2 02/16/1999 Mass Update Requirement Change Implemented
NANC 068 04/16/1997 Mass Update Requirements Modification Implemented
NANC 067 04/11/1997 Flow Modification Implemented
NANC 066 04/11/1997 Flow Modification Implemented