Problems and Issues Management

In late 1999, the LNPA WG established a "problem identification and management process" (PIM) for LNP issues.  The LNPA WG is not responsible for resolving all LNP problems.  The LNPA WG does an initial evaluation of each LNP problem submitted, then either develops a resolution for the issue or refers the issue to the appropriate forum for resolution.  The status of each LNP issue submitted is reported to the NANC on a regular basis.

The LNPA WG has developed issue submittal guidelines, an issue submittal form, process flows, and a tracking mechanism.  Issues should be submitted to the LNPA WG, using the issue submittal form, at least two weeks before the LNPA WG meeting at which LNP issue's discussion is desired.

  • PIM 58

    Some end users are unable to port their telephone numbers because the NXX code is not opened for portability in the NPAC SMS. Usually, this can be resolved by communication between the two service providers. However, in some cases the old service provider (OSP) contacts are not available, or the OSP refuses to make the code portable.

    Download the document PIM 58

  • PIM 57

    Attempting to port a consumer when a Reseller abruptly discontinues business and/or declares bankruptcy.

    Download the document PIM 57

  • PIM 56

    While all carriers receive updates in their LSMS when porting customers, some carriers are not provisioning their LNP databases correctly. When this scenario occurs, customers are not able to terminate or receive calls from those carrier's networks that did not provision their LNP databases.

    Download the document PIM 56

  • PIM 55

    Intermodal porting faces a challenge in the form of a process gap between the wireless and wireline carriers after a confirmation has been received. The 2 processes are not in synch, causing fall out and delays.

    Download the document PIM 55

  • PIM 54

    Comcast is requesting NANC support a standard porting interval for wireline to wireline and wireline to wireless of one day based on certain criteria

    Download the document PIM 54

  • PIM 53

    Carriers are taking back numbers that have been ported out several months or even years because their systems do not reflect a valid FOC was sent. In many cases they have not removed the number from their number inventory and they have re-assigned the TN to another customer.

    Download the document PIM 53

  • PIM 52

    Carriers are receiving blocks in which the Intra-Service Provider ports (ISPs) have not been completed by the donor provider prior to being donated to the pool. These blocks should be considered unusable due to the issues and rippling effects caused when the receiving service provider begins to assign customers out of the block.

    Download the document PIM 52

  • PIM 51

    Currently a carrier can open a Code (NPA-NXX) for portability in the NPAC whether or not they own the NPA-NXX.

    Download the document PIM 51

  • PIM 50

    A large number of wire line to wireless ports fail the automated process because they are from large accounts where the customer service record (CSR) is too large to return on a CSR query. The CSR is needed to complete an LSR.

    Download the document PIM 50

  • PIM 49

    Service Providers do not have clear direction in the NANC flows regarding the proper porting procedure for Type 1 numbers

    Download the document PIM 49