Change Orders

The Change Order section contains descriptions of the business functionality of the Number Portability Administration Center Service Management System (NPAC/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). 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 a Statement of Work (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 Document
NANC 124 07/17/1997 Null Character Padding Implemented Download
NANC 123 07/17/1997 IIS Section 10 Flow Clarification Implemented Download
NANC 122 07/17/1997 Enhanced Key Expiration Strategy Closed Download
NANC 121 07/16/1997 lnpSpecificInfo attribute Closed Download
NANC 120 06/27/1997 Filter Deletion Closed Download
NANC 119 06/27/1997 Additional Requirement to View State Portability Area Closed Download
NANC 118 06/27/1997 CMIP Notification Recovery by Time Range Implemented Download
NANC 117 07/26/1997 Generalized Time Issue Closed Download
NANC 116 07/27/1997 Filter Handling Issue between IBM and DSET Closed Download
NANC 115 06/26/1997 Country Code Discrepancy Implemented Download
NANC 114 06/23/1997 Download subscription-version-id optional Implemented Download
NANC 113 06/20/1997 ASN.1 and GDMO for Notification Recovery Implemented Download
NANC 112 06/21/1997 Key Expiration Implemented Download
NANC 111 06/21/1997 Validation of Association Functions Implemented Download
NANC 110 06/13/1997 PGP documentation Implemented Download
NANC 109 06/09/1997 Number Pooling Implemented Download
NANC 108 06/08/1997 IIS Discrepancy with R5-26 Implemented Download
NANC 107 06/09/1997 IIS Discrepancy with R5-25 Implemented Download
NANC 106 06/07/1997 Digital Signature Definitions Implemented Download
NANC 105 05/31/1997 Download File Formats Implemented Download
NANC 104 06/01/1997 Edits at Bind Implemented Download
NANC 103B 05/23/1997 Increase in OSI Selector Size Closed Download
NANC 103A 05/31/1997 Clock Synchronization 5 or 2 Minutes Implemented Download
NANC 102 05/23/1997 Key file exchange formats Implemented Download
NANC 101 05/21/1997 Subscription Version Remove From Conflict Action Behavior modification Implemented Download