NANPA Planning Letter (PL) Number 413 - California - NPA 510 - Relief Plan Dismissed

As a result of a September 9, 2010, California Public Utilities Commission (CPUC) decision to eliminate rationing of the 510 area code, NANPA has rescinded the jeopardy status for this NPA. PL 413 was published as a means for NANPA to "reflect the NPA relief project for the 510 NPA as dismissed".

The 341 NPA, which had previously been designated as the overlay relief method for the 510 area code, will be retained by NANPA "as the reserved future NPA for the 510 area code unless otherwise specified by CPUC". At such time that NANPA determines relief is needed for the 510 NPA, it will initiate a new project and application with the CPUC.

For additional information, visit www.nanpa.com.

Exhaust Projections

NANPA recently posted their October 2010 NPA and NANP Exhaust Projections. Carrier forecast and utilization data (submitted "via the NRUF process") is considered during the exhaust analyses, as well as a series of NANP assumptions (which have been utilized in past studies).

A detailed outline of the analysis process and complete listing of assumptions utilized may be found on http://www.nanpa.com/; but, the end result is a projected exhaust date beyond the year 2040.