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Publications

Planning Letters 1999

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-205 606 NPA Split, Creating 859 NPA - Kentucky December 30, 1999
PL-204 NPA 980 to Overlay NPA 704 (North Carolina) December 13, 1999
PL-203 Permissive Dialing Extended for the 503 / 971 Concentrated Overlay (Oregon) December 10, 1999
PL-202 912 NPA split, Creating 229 and 478 NPAs - Georgia December 9, 1999
PL-201 409 NPA split, Creating 936 and 979 NPAs - Texas December 7, 1999
PL-200 612 NPA split, Creating 763 and 952 (Minnesota) November 30, 1999
PL-199 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 484 and 610 NPAs (Pennsylvannia) November 30, 1999
PL-198 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 412 NPA (Pennsylvannia) November 29, 1999
PL-197 Assignment of NPA codes 866 and 855 for Toll-Free Service November 29, 1999
PL-196 NANP- Overlay of 360 Numbering Plan Area (NPA) with 564 NPA (Washington) October 29, 1999
PL-195 NPA 872 to Overlay NPAs 312 and 773
NPA 464 to Overlay NPA 708
NPA 331 to Overlay NPA 630
October 24, 1999
PL-194 NANP- Split of 760 Numbering Plan Area (NPA) with 442 NPA - California October 24, 1999
PL-193 NANP- Overlay of 650 Numbering Plan Area (NPA) with 764 NPA - California October 24, 1999
PL-192 NANP - Overlay of 810 Numbering Plan Area (NPA) with 586 NPA - Michigan September 2, 1999
PL-191 NANP- Overlay of 415 Numbering Plan Area (NPA) with 628 NPA - California August 26, 1999
PL-190 NANP- Overlay of 510 Numbering Plan Area (NPA) with 341 NPA - California August 26, 1999
PL-189 NANP- Split of 909 Numbering Plan Area (NPA) with 951 NPA and subsequent Overlay of 909 Numbering Plan Area (NPA) with 752 NPA - California August 26, 1999
PL-188 NANP-Split of 318 Numbering Plan Area (NPA) in Louisiana; introduction of NPA 337 August 25, 1999
PL-187 Urgent Reminder: Mandatory dialing for the Louisiana 225/504 Wireless Codes July 28, 1999
PL-186 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 817 NPA (Texas) July 27, 1999
PL-185 Overlay of 718 (New York) Numbering Plan Area (NPA); New NPA 347 July 23, 1999
PL-184 Geographic Split of 516 (New York) Numbering Plan Area (NPA); addition of 631 NPA July 22, 1999
PL-183 Geographic Split of 423 (Tennessee) Numbering Plan Area (NPA); addition of 865 NPA July 22, 1999
PL-182 Concentrated Overlay of 503 Numbering Plan Area (NPA) with 971 NPA July 21, 1999
PL-181 Urgent reminder to update networks for the 602 NPA Split in Phoenix, Arizona with the new 623 and 480 NPAs June 21, 1999
PL-180 Geographic Split of 941 (Florida) Numbering Plan Area (NPA); addition of 863 NPA June 19, 1999
PL-179 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 704 NPA (North Carolina) June 1, 1999
PL-178 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 810 NPA (Michigan) June 1, 1999
PL-177 Overlay of 703 (Virginia) Numbering Plan Area (NPA) June 1, 1999
PL-176 Urgent reminder to Industry to update networks for the 403 NPA Split in Alberta, Canada with new 780 NPA May 11, 1999
PL-175 Overlay of 212 (New York) Numbering Plan Area (NPA) May 7, 1999
PL-174 Geographic Split of 414 (Wisconsin) Numbering Plan Area (NPA); addition of 262 NPA May 6, 1999
PL-173 Geographic Split of 609 (New Jersey) Numbering Plan (NPA); addition of 856 NPA May 5, 1999
PL-172 710 Numbering Plan Area (NPA) for the U.S. Government April 26, 1999
PL-171 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 561 NPA (Florida) April 22, 1999
PL-170 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 954 NPA (Florida) April 22, 1999
PL-169 NANP Overlay of 714 NPA with 657 NPA in Southern California April 22, 1999
PL-168 NANP Split Boundary Extension Concentrated Overlay of 407 NPA with 321 NPA April 22, 1999
PL-167 Geographic Split of 616 (Michigan) Numbering Plan Area (NPA) March 11, 1999
PL-166 Geographic Split of 601 (Mississippi) Numbering Plan Area (NPA) March 4, 1999
PL-165 Geographic Split of 314 (Missouri) Numbering Plan Area (NPA) February 23, 1999
PL-164 Update of Jeopardy Procedures for Numbering Plan Area (NPA) 314 in Missouri; this notice updates PL-147 February 23, 1999
PL-163 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 603 NPA (New Hampshire) February 23, 1999
PL-162 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 716 NPA (New York) February 23, 1999
PL-161 Reminder of July 1, 1999 date for the Introduction of the 469 NPA for Dallas, Texas to overlay existing 214/972 NPAs; Please refer to PL-142 February 23, 1999
PL-160 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 760 NPA (California) February 23, 1999
PL-159 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 707 NPA (California) February 23, 1999
PL-158 Update of Jeopardy Procedures for Numbering Plan Area (NPA) 512 in Texas; this notice updates PL-099 February 23, 1999
PL-157 No Mandatory date set for 1 +10 digit dialing in Chicago NPA 847/224 Overlay; update to PL-127 February 23, 1999
PL-156 Mandatory dialing for the Louisiana 225/504 Wireless Codes; update to PL-123 February 22, 1999
PL-155 NANP-Split of 502 Numbering Plan Area (NPA) in Kentucky February 1, 1999
PL-154 NANP - Split of 512 (Texas) Numbering Plan Area (NPA) February 1, 1999
PL-153 NANP-Split of the 602 (Arizona) Numbering Plan Area (NPA) and the Addition of the 480 and 623 NPA's February 1, 1999
PL-152 Jeopardy Conservation Procedures Announced for Arizona NPA 602 February 1, 1999
PL-151 Jeopardy Conservation Procedures Announced for New Jersey NPA 973 February 1, 1999
PL-150 Jeopardy Conservation Procedures Announced for New Jersey NPA 732 February 1, 1999
PL-149 NANP- Overlay of 408 Numbering Plan Area (NPA) with 669 NPA - California January 25, 1999
PL-148 Reissue of the 403 NPA Split in Alberta, Canada, to add new Test Numbers, NXX listing, and Permissive Dialing Dates (first issued in PL-084 on September 2, 1998.) January 8, 1999

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