Publications

Planning Letters 2013

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-459 NPA 629 to Overlay NPA 615 (Tennessee) December 3, 2013
PL-458 Assignment of NPA 577 for Non-Geographic Services October 11, 2013
PL-457 NPA 930 to Overlay NPA 812 (Indiana) September 3, 2013
PL-456 NPA 959 to Overlay NPA 860 (Connecticut) August 27, 2013
PL-455 Implementation of the 844 NPA for Toll-Free Services August 5, 2013
PL-454 NPA 782 to Overlay NPA 902 (Nova Scotia/Prince Edward Island, Canada) May 31, 2013
PL-453 NPA 346 to Overlay NPAs 281/713/832 (Texas) May 30, 2013
PL-452 Implementation of the 844 NPA for Toll-Free Services May 8, 2013
PL-451 NPA 272 to Overlay NPA 570 (Pennsylvania) April 2, 2013
PL-450 NPA 236 to Overlay NPA 250/604/778 (British Columbia, Canada) February 6, 2013
PL-449 NPA 364 to Overlay NPA 270 (Kentucky) January 29, 2013
PL-448 NPA 365 to Overlay NPA 289/905 (Southern Ontario, Canada) January 24, 2013
PL-447 NPA 437 to Overlay NPA 416/647 (Toronto, Canada) January 24, 2013
PL-446 NPA 639 to Overlay NPA 306 (Saskatchewan, Canada) January 22, 2013
     

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