NANPA Activities
NANPA Activities
NANPA Activities
NANPA Activities
NANPA Activities
NANPA Activities
NANPA Activities

Publications

Planning Letters 2010

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-417 NPA 274 to Overlay NPA 920 (Wisconsin) December 22, 2010
PL-416 Assignment of NPA 544 for Personal Communications Services (PCS) December 17, 2010
PL-415 NPA 270 (Kentucky) - 2-way Split, Creating 364 NPA - Relief Plan Cancelled December 15, 2010
PL-414 NPA 249 to Overlay NPA 705 (Ontario, Canada) December 7, 2010
PL-413 NPA 510 (California) - Relief Plan Dismissed November 22, 2010
PL-412 Implementation of the NPA 855 for Toll Free Services October 1, 2010
PL-411 Assignment of NPA 544 for Personal Communications Services (PCS) September 28, 2010
PL-410 NPA 531 to Overlay NPA 402 (Nebraska) September 1, 2010
PL-409 NPA 272 to Overlay NPA 570 (Pennsylvania) August 24, 2010
PL-408 NPA 270 Split, Creating NPA 364 (Kentucky) - Start of Permissive Dialing Suspended August 19, 2010
PL-407R1 Implementation of the NPA 855 for Toll Free Services August 17, 2010
PL-406 Assignment of NPA 544 for Personal Communications Services (PCS) June 30, 2010
PL-405 NPA 873 to Overlay NPA Code 819 (Western Québec, Canada) June 25, 2010
PL-404 Introduction on NPA 721 (Sint Maarten, Netherlands Antilles March 3, 2010
PL-403 NPA 539 to Overlay NPA 918 (Oklahoma) March 1, 2010
PL-402 NPA 929 to Overlay NPA 718/347 (New York) February 9, 2010
PL-401 NPA 579 to Overlay NPA 450 (Québec, Canada) February 1, 2010
PL-400 NPA 327 to Overlay NPA 870 (Arkansas) January 25, 2010

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