Publications

Planning Letters 1997

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-107 NANP - EXTRAORDINARY NPA-SPECIFIC JEOPARDY CONSERVATION PROCEDURES ANNOUNCED FOR 813 NPA (FLORIDA) Dec 1997
PL-106 TRANSFER OF NANP ADMINISTRATION RESPONSIBILITIES TO LOCKHEED MARTIN IMS Dec 1997
PL-105 NANP-SPLIT OF 704 (NORTH CAROLINA) NUMBERING PLAN AREA (NPA) Jan 1998
PL-104 ADDITIONAL CHANGES TO THE SPLIT OF 508 & 617 NPAS (MASSACHUSETTS) Dec 1997
PL-103 NANP INTRODUCTION OF NEW 784 (ST. VINCENT AND THE GRENADINES) NUMBERING PLAN AREA (NPA) Nov 1997
PL-102 NANP - OVERLAY OF 770 AND 404 NUMBERING PLAN AREA (NPA) IN GEORGIA Nov 1997
PL-101 REVISIONS TO THE SPLIT OF 614 (OHIO) NUMBERING PLAN AREA (NPA) Nov 1997
PL-100 NANP-SPLIT OF 910 (NORTH CAROLINA) NUMBER PLAN AREA (NPA) Nov 1997
PL-099 EXTRAORDINARY NPA-SPECIFIC JEOPARDY CONSERVATION PROCEDURES ANNOUNCED FOR 512 NPA (TEXAS) Nov 1997
PL-098 NANP-SPLIT OF 209 (CALIFORNIA) NUMBERING PLAN AREA (NPA) Nov 1997
PL-097 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 516 NPA (NEW YORK) Oct 1997
PL-096 DECLARATION OF JEOPARDY SITUATION IN NPA 847 (ILLINOIS) Oct 1997
PL-095 EXTENSION IN THE PERMISSIVE DIALING PERIOD FOR THE 508 AND 617 NPA RELIEF PLANS (MASSACHUSETTS) Oct 1997
PL-094 CHANGES TO EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 215 AND 717 NPAS (PENNSYLVANIA) Oct 1997
PL-093 CHANGES TO EXTRAORDINARY NPA-SPECIFIC JEOPARDY CONSERVATION PROCEDURES FOR THE 972 NPA (TEXAS) Oct 1997
PL-092 EXTRAORDINARY NPA-SPECIFIC JEOPARDY CONSERVATION PROCEDURES ANNOUNCED FOR 281 AND 713 NUMBERING PLAN AREAS IN HOUSTON,TEXAS Sep 1997
PL-091 NANP-SPLIT OF 412 (PENNSYLVANIA) NUMBERING PLAN AREA (NPA) Sep 1997
PL-090 EXTENSION OF PERMISSIVE DIALING PERIOD FOR NPA 876 (JAMAICA) Sep 1997
PL-089 AUTOMATIC NUMBER IDENTIFICATION DIGITS (ANI 11) FOR PAY PHONE COMPENSATION Sep 1997
PL-088 NANP - SPLIT OF 614 (OHIO) NUMBERING PLAN AREA (NPA) Sep 1997
PL-087 EXTRAORDINARY NPA-SPECIFIC JEOPARDY CONSERVATION PROCEDURES ANNOUNCED FOR NORTH CAROLINA AND SOUTH CAROLINA NUMBERING PLAN AREAS Sep 1997
PL-086 NANP-SPLIT OF 803 (SOUTH CAROLINA) NUMBERING PLAN AREA (NPA) Sep 1997
PL-085 NANP - SPLIT OF 405 (OKLAHOMA) NUMBERING PLAN AREA (NPA) Sep 1997
PL-084 NANP-SPLIT OF 403 (ALBERTA) NUMBERING PLAN AREA (NPA) Sep 1997
PL-083 DECLARATION OF JEOPARDY SITUATION IN NPA 813 (FLORIDA) Sep 1997
PL-082 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 610 NPA (PENNSYLVANIA) Sep 1997
PL-081 NANP - SPLIT OF 615 (TENNESSEE) NUMBERING PLAN AREA (NPA) Aug 1997
PL-080 CHANGES IN TEST NUMBERS AND EFFECTIVES DATES FOR CALIFORNIA NPA SPILTS Aug 1997
PL-079 NANP-SPLIT OF 601 (MISSISSIPPI) NUMBERING PLAN AREA (NPA) Jul 1997
PL-078 DECLARATION OF JEOPARDY SITUATION IN NPA 913 (KANSAS) Jul 1997
PL-077 NANP-SPLIT OF 816 (MISSOURI) NUMBERING PLAN AREA (NPA) Jul 1997
PL-076 NANP SPLIT OF 514 (QUEBEC) NUMBERING PLAN AREA (NPA) Jul 1997
PL-075 DECLARATION OF JEOPARDY SITUATION IN NPA 303 (COLORADO) Jul 1997
PL-074 NANP-ASSIGNMENT OF 877 NPA FOR TOLL-FREE SERVICES Jul 1997
PL-073 DECLARATION OF JEOPARDY SITUATION IN NPA 713 (TEXAS) Jul 1997
PL-072 NANP-SPLIT OF 916 (CALIFORNIA) NUMBERING PLAN AREA (NPA) Jun 1997
PL-071 CHANGES TO THE 415 AND 714 NPA (CALIFORNIA) RELIEF PLANS Jun 1997
PL-070 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 908 NPA (NEW JERSEY) Jun 1997
PL-069 NANP-SPLIT OF 617 (MASSACHUSETTS) NUMBERING PLAN AREA (NPA) Jun 1997
PL-068 NANP-SPLIT OF 508 (MASSACHUSETTS) NUMBERING PLA NAREA (NPA) Jun 1997
PL-067 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 210 NPA (TEXAS) Jun 1997
PL-066 NANP-SPLIT OF 313 (MICHIGAN) NUMBERING PLAN AREA (NPA) May 1997
PL-065 NANP-SPLIT OF 801 (UTAH) NUMBERING PLAN AREA (NPA) May 1997
PL-064 CHANGE IN TEST NUMBER FOR SPLIT OF 817 NPA (TEXAS) May 1997
PL-063 NANP-SPLIT OF 408 (CALIFORNIA) NUMBERING PLAN AREA (NPA) May 1997
PL-062 NANP-SPLIT OF 213 (CALIFORNIA) NUMBERING PLAN AREA (NPA) May 1997
PL-061 NANP-SPLIT OF 510 (CALIFORNIA) NUMBERING PLAN AREA (NPA) May 1997
PL-060 ANNOUNCEMENT OF JEOPARDY PROCEDURES FOR 510 AND 916 NPAS (CALIFORNIA) May 1997
PL-059 NANP-SPLIT OF 904 (FLORIDA) NUMBERING PLAN AREA (NPA) May 1997
PL-058 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 972 NAP (TEXAS) May 1997
PL-057 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 770 NPA (GEORGIA) May 1997
PL-056 NANP-INTRODUCTION OF NEW 340 (US VIRGIN ISLANDS) NUMBERING PLAN AREA (NPA) Apr 1997
PL-055 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 215 NPAS (PENNSYLVANIA) Apr 1997
PL-054 EXTRAORDINARY NPA-SPECIFIC JEOPARDY CONSERVATION PROCEDURES ANNOUNCED FOR SEVEN CALIFORNIA NUMBERING PLAN AREAS (NPAS) Apr 1997
PL-053 NANP-SPLIT OF 913 (KANSAS) NUMBERING PLAN AREA (NPA) Apr 1997
PL-052 IMPORTANT NOTICE OF DELAY IN IMPLEMENTATION OF NPA RELIEF FOR THE 412 NPA (PENNSYLVANIA) Apr 1997
PL-051 DECLARATION OF JEOPARDY SITUATION IN NPA 816 (MISSOURI) Apr 1997
PL-050 DECLARATION OF JEOPARDY SITUATION IN NPA 972 (TEXAS) Apr 1997
PL-049 DELCARATION OF JEOPARDY SITUATION IN NPA 614(OHIO) Apr 1997
PL-048 DECLARATION OF JEOPARDY SITUATION IN NPA 770 (GEORGIA) Mar 1997
PL-047 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 508 AND 617 NPAS (MASSACHUSETTS) Mar 1997
PL-046 DECLARATION OF JEOPARDY SITUATION IN NPA 403 (ALBERTA) Mar 1997
PL-045 NANP-SPLIT OF 216 (OHIO) NUMBERING PLAN AREA (NPA) Mar 1997
PL-044 NANP-SPLIT OF 714 (California) NUMBERING PLAN AREA (NPA) Mar 1997
PL-043 ASSIGNMENT OF SERVICE CODES 311 AND 711 Feb 1997
PL-042 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 501 NPA (ARKANSAS) Feb 1997
PL-041 EXTRAORDINARY NPA-SPECIFIC CONSERVATION PROCEDURES FOR 717 NPA (ARKANSAS) Feb 1997
PL-040 REISSUANCE OF NOTIFICATION OF NANP-SPLIT OF 414 (WISCONSIN) NUMBERING PLAN AREA (NPA) TO CORRECT END PERMISSIVE DATE Feb 1997
PL-039 NANP-DECLARATION OF JEOPARDY SITUATION IN NPA 215(PENNSYLVANIA) Feb 1997
PL-038 NORTH AMERICA NUMBERING PLAN AREA CODES - 1997 UPDATE Jan 1997
PL-037 NANP - SPLIT OF 908 (NEW JERSEY) NUMBERING PLAN AREA (NPA) Jan 1997
PL-036 NANP-SPLIT OF 201 (NEW JERSEY) NUMBERING PLAN AREA (NPA) Jan 1997
PL-035 NANP-SPLIT OF 210 (TEXAS) NUMBERING PLAN AREA (NPA) Jan 1997
PL-034 NANP-SPLIT OF 817 (TEXAS) NUMBERING PLAN AREA (NPA) Jan 1997
PL-033 NANP-SPLIT OF 501 (ARKANSAS) NUMBERING PLAN AREA (NPA) Jan 1997
PL-032 NANP-SPLIT OF 414 (WISCONSIN) NUMBERING PLAN AREA (NPA) Jan 1997
PL-031 DECLARATION OF JEOPARDY SITUATION IN NPA 405 (OKLAHOMA) Jan 1997
PL-030 DECLARATION OF JEOPARDY SITUATION IN NPA 501 (ARKANSAS) Jan 1997
PL-029 NANP-INTRODUCTION OF NEW 649 (TURKS AND CALCOS ISLANDS) NUMBERING PLAN AREA (NPA) Jan 1997
PL-028 NANP-SPLIT OF 818 (CALIFORNIA) NUMBERING PLAN AREA (NPA) Jan 1997

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