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9, 2010, California Public Utilities Commission (CPUC) decision to eliminate rationing of the 510 area code, NANPA has rescinded the jeopardy status for this NPA.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.

NANPA Planning Letter (PL) Number 412 - NPA 855 - Implementation Delayed

PL 412 has been issued to advise that the opening of the 855 toll free NPA has been delayed (from 10/2/10 to 10/9/10) by the Wireline Competition Bureau of the Federal Communications Commission (FCC). This delay is intended to "to allow all Responsible Organizations (RespOrgs) time to review the FCCs allocation scheme and make any necessary preparations".
For additional information, visit http://www.nanpa.com/.

NANPA Planning Letter (PL) Number 411 - Assignment of NPA 544 for Personal Communications Services (PCS)

As outlined in PL 406, and continued observance of PCS guidelines governing 5YY NXX Code Assignment, NANPA has posted PL 411 as an industry notification regarding current supply. This notification is required six months before the exhaust of the PCS 5YY resource (which are presently the 500 and 533 NPAs); and, to inform that once 100% of the remaining 500/533 codes are assigned, the next PCS 5YY code will be available.

PL 411, utilizing current information regarding the available supply of 5YY NXXs, serves to notify of the revised exhaust date for 5YY resources, which is now expected to be fourth quarter of 2010. NANPA will continue to keep the industry updated regarding any modifications to this projection.

"The 5YY NPA resource is a non-geographic Service Access Code (SAC) used for personal communications services. As stated in the Personal Communications Services (PCS) 5YY NXX Code Assignment Guidelines, personal communication service is a set of capabilities that allows some combination of personal mobility, terminal mobility, and service profile management. It enables each personal communication service user to participate in a user-defined set of subscribed services, and to initiate and/or receive calls on the basis of some combination of a personal number, terminal number, and a service profile across multiple networks at any terminal, fixed or mobile, irrespective of geographic location."

For additional information, visit www.nanpa.com.

NANPA Notice - California 510, 559 and 626 NPAs

NANPA recently issued notice advising of a letter received from the California Public Utilities Commission (CPUC), "announcing the elimination of rationing and NANPA rescinding the jeopardy status for the California 510, 559 and 626 NPAs as of September 20, 2010. " The CPUC determined there is "no longer a need to continue the rationing for the 510, 559 and 626 NPAs. Effective immediately the jeopardy status for these NPAs is rescinded and these NPAs will no longer be included in the relief planning activities report."

NANPA Rate Center Consolidation Notification -- Washington 253 Arletta and Lakebay

The Washington Utilities & Transportation Commission approved a 10/13/10 rate center consolidation merging the centers for Arletta and Lakebay into Fox Island's existing center. As such, the following central office codes will be associated with the Fox Island rate center as of 10/13/10:

• WA 253-313 Comcast Phone of Washington/Oregon, LLC - WA Lakebay
• WA 253-884 Centurytel of Washington, Inc., Lakebay
• WA 253-265 Centurytel of Washington, Inc., Arletta
• WA 253-649 Comcast Phone of Washington/Oregon, LLC - WA Arletta

For more information, visit www.nanpa.com.

NANPA Planning Letter (PL) Number 410 - Nebraska - NPA 531 to Overlay NPA 402

On 6/30/09, the Nebraska Public Service Commission (PSC) approved an all services overlay of the new 531 NPA as the relief method for the 402 NPA. Both the existing 402 and new 531 NPAs will serve the eastern portion of Nebraska - including Bellevue, Columbus, Fremont, Hastings, Lincoln, Norfolk, Omaha, and Valentine. The PSC has also outlined an implementation scheduled for open-ended permissive 10-digit local dialing for the 308 NPA "to be placed in service coincident with the start of permissive dialing in the 402 NPA."

The implementation schedule outlined below was adopted on 9/15/09, with the Commission reserving the "ability to extend the permissive dialing period where it finds such extension is warranted and in the public interest." On 8/31/10, the Commission issued a letter advising that 531 NPA central office codes will not be available for NANPA assignment "until the level of remaining 402 NPA codes reaches ten".

531 Overlay Implementation:

• 6/26/10 – Start of permissive 10-digit dialing.
• 2/26/11 – End of permissive dialing and start of mandatory 10-digit dialing.
• 3/26/11 – Earliest new NPA central office code activation date.*
• TBD** - Earliest date central office codes in the new NPA may be ordered through NANPA.

* Effective Date of the New 531 NPA
** Ten 402 Central Office Codes Remain

While callers may use seven-digit or 10-digit dialing during the permissive period, the latter is encouraged in preparation for implementation of mandatory 10-digit dialing. Also to prepare for the end of the permissive dialing, carriers should ensure their switches are ready to begin sending 10 digits prior to the mandatory dialing conversion date.

Please see PL-397 for complete details on the implementation of the 531 NPA. To access PL-397 and other information, visit http://www.nanpa.com/.