Publications

Planning Letters 2020

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
PL555 Assignment of 943 to overlay 404/470/678/770 (Georgia) December 23, 2020
PL554 Assignment of NPA 526 for Non-Geographic Services December 16, 2020
PL553 NPA 428 to Overlay NPA 506 (New Brunswick, Canada) supersedes PL549 December 8, 2020
PL552 NPA 656 to Overlay 813 (Florida) supersedes PL541 December 4, 2020
PL551 NPA 448 to Overlay 850  (Florida) supersedes PL534 December 4, 2020
PL550 NPA 742 overlay on NPA 289/365/905 (Southern Ontario) December 1, 2020
PL549 NPA 428 to Overlay NPA 506 (New Brunswick, Canada) December 1, 2020
PL548 NANPA Planning Letter 548, 800-855 number management October 29, 2020
PL547 NPA 202 and 771 All-Services Ovelray (District of Columbia) October 22, 2020
PL546 757 and 948 All-Services Overlay (Virginia) – amending PL536 August 20, 2020
PL545 NPA 540 and 826 All-Services Overlay (Virginia) August 18, 2020

PL544

 

Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline

 August 17, 2020
PL543 NPA 582 to Overlay 814  (Pennsylvania) supersedes PL540 July 14, 2020
PL542 Assigning from NPA 525 for Non-Geographic Services July 13, 2020
PL541 NPA 656 to Overlay NPA 813 (Florida) June 29, 2020
PL540 NPA 582 to Overlay NPA 814 (Pennsylvania) June 4, 2020
PL539 NPA 428 to Overlay NPA 506 (New Brunswick, Canada) May 6, 2020
PL538 Assignment of NPA 525 for Non-Geographic Services April 13, 2020
PL537 NPA 945 to Overlay 214/469/972 (Texas) April 8, 2020
PL536 NPA 948 to Overlay 757 (Virginia) April 6, 2020
PL535  NPA 572 to Overlay NPA 405 (Oklahoma) March 4, 2020

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