Publications

Planning Letters 2015

These Informational Letters (IL) or Planning Letters (PL) may be downloaded from this web site. These files require the use of the Adobe Acrobat Reader.

Number Subject Date
PL-490 NPA 986 to Overlay NPA 208 (Idaho) December 23, 2015
PL-489 NPA 332 to Overlay NPAs 212/646/917 (New York) December 21, 2015
PL-488 NPA 825 to Overlay NPAs 403/587/780 (Alberta Canada) December 2, 2015
PL-487 Assignment of NPA 588 for Non-Geographic Services September 9, 2015
PL-486 Assignment of NPA 588 for Non-Geographic Services August 28, 2015
PL-485 NPA 680 to Overlay NPA 315 (New York) August 21, 2015
PL-484 Assignment of NPA 622 for Non-Geographic Services July 9, 2015
PL-483 Moratorium on 555 Line Number Assignments and Requirement to Provide Information on Current 555 Assignments June 19, 2015
PL-482 NPA 463 to Overlay NPA 317 (Indiana) May 13, 2015
PL-481 Implementation of the NPA 833 for Toll-Free Services April 15, 2015
PL-480 NPA 825 to Overlay NPAs 403/587/780 (Alberta Canada) April 6, 2015
PL-479 Assignment of NPA 588 for Non-Geographic Services April 2, 2015
PL-478 Assignment of NPA 622 for Non-Geographic Services February 26, 2015
PL-477 NPA 380 to Overlay NPA 614 (Ohio) February 20, 2015
PL-476R1 NPA 934 to Overlay NPA 631 (New York) February 19, 2015
PL-475 NPA 743 to Overlay NPA 336 (North Carolina) January 9, 2015
     

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