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 Effective immediately the jeopardy status for these NPAs is rescinded and these NPAs will no longer be included in the relief planning activities report."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/.

NANPA Planning Letter (PL) Number 409 - Pennsylvania - NPA 272 to Overlay NPA 570

An all services overlay was approved by the Pennsylvania Public Utility Commission (PUC) on 7/15, as the relief method for the existing 570 NPA. The new NPA, 272, and the existing 570 NPA will serve northeastern Pennsylvania (including Scranton, Williamsport and Wilkes-Barre).

The Commission provided "unique implementation interval requirements" necessitating NANPA to "provide a monthly report on the projected exhaust date of the 570 NPA based on actual carrier demand. When the PUC determines the 570 NPA is within 3-months of exhaust it will notify the industry to start customer education and permissive dialing." As a result, the implementation timeline has yet to be determined, and the only date identified is for all network preparation to be completed no later than 3/1/11.

Once the timeframe is made available, the dialing plan for 570/272 ("coincident with the introduction of mandatory 10-digit dialing") will be as follows:

• Local & Toll Calls Terminating in Overlay Home NPAs (HNPAs) … 10-Digits (NPA-NXX-XXXX)*
• Local & Toll Calls Terminating in Foreign NPA (FNPA) Outside Overlay … 1+ 10-Digits (1+ NPA-NXX-XXXX)
• Operator Services HNPA or FNPA Call … 0+ 10-Digits (0+ NPA-NXX-XXXX)

"*1+10 digit dialing for all HNPA and FNPA calls permissible at service providers discretion."

International and domestic carriers should ensure network-wide activation of the new 272 NPA. A test number for routing verification will be available 90-days prior to the new NPA effective date. NANPA will provide another planning letter once timeline dates have been established. To view a 570/272 NPA overlay rate center map, or for additional information, please visit http://www.nanpa.com/.

NANPA Planning Letter (PL) Number 408 - Kentucky - NPA 270; 2-Way Split, Creating 364 NPA - Start of Permissive Suspended

In 2007, a two-way geographic split was ordered by the Kentucky Public Service Commission (KY PSC) as the relief method for the 270 NPA (serving the western portion of KY).

PL 408 advises the KY PSC ordered a suspension to the 1/1/12 permissive dialing date. Additionally, it was ordered that the commission will continue monitoring 270 NPA developments in order to determine future relief efforts (including permissive dialing implementation dates). As a result, no dates are identified for the implementation of the 270 NPA split; and, the "mandatory dialing date shall remain open until further Order by the Commission".

For additional information, visit http://www.nanpa.com/.

NANPA Rate Center Consolidation Notifications -- Utah 801/385; South Dakota 605

Utah - 801/385 Rate Center Consolidation under Midvale -- The Utah Public Service Commission approved an 11/16/10 rate center consolidation in which the rate centers for Holladay, Magna and Kearns will be merged into the Midvale rate center.

South Dakota - 605 Colman and Morristown Consolidations -- In two separate orders, the Public Utilities Commission of South Dakota ordered the following rate center consolidations, both to be effective 11/16/10:

• Order TC 10-083: Approves consolidating Colman under the Flandreau rate center. The following central office codes currently assigned to the Coleman rate center will be associated with Flandreau as of 11/16/10: SD 605-530 Western Wireless Corporation-SD; SD 605-534 Qwest Corporation; SD 605-684 Knology of the Plains, Inc. SD.
• Order TC 10-082: Approves merging the Morristown rate center with McIntosh. SD 605-524 Qwest Corporation central office code will be associated with the McIntosh rate center, instead of its current Morristown rate center, as of 11/16/10.

NANPA's separate notifications for the Utah and South Dakota rate center consolidations both included the following Central Office Code Administration reminder: "Also please note that in a rate center consolidation an SP must update its NRUF forecast and Appendix 1 in the new rate center(s) in order to receive resources in that rate center. Forecasts in the old rate center(s) will be deleted on the effective date of the consolidation. (Section 6.3.4 of the Central Office Code (NXX) Assignment Guidelines). Please note that service providers are not required to submit Part 1 forms to NANPA for these types of changes, per Section 6.3.4 of the Central Office Code (NXX) Assignment Guidelines). "

For additional information, visit www.nanpa.com.