NRNumberResearch Membership · Data 09/17/2026

Relief Tracker

245 recorded events · compiled from NANPA planning letters 1997–present

Each event page consolidates every letter issued for that decision — initial announcements, revisions and rescissions — with links to the primary documents.

All Overlay (152) Other (43) Jeopardy (26) New npa (20) Split (4)
AnnouncedEventTypeArea codesRegion
2001-03-28 NPA 470 To Overlay NPAs 404, 678, and 770 (Georgia) overlay 404 / 470 GA
2001-03-14 NPA 667 to Overlay NPAs 410 and 443 (Maryland) overlay 410 / 667 MD
2001-01-26 Delayed 10-Digit Dialing in NPA 787 (Puerto Rico) other 787 PR
2001-01-23 Revised Mandatory Dialing Date for NPA 704 (North Carolina) other 704 NC
2000-10-27 NPA 778 To Overlay NPA 604 (Southwestern British Columbia) overlay 604 / 778 —
2000-10-25 NPA 289 To Overlay NPA 905 (Southern Ontario, Canada) overlay 905 / 289 —
2000-07-26 NPA 939 To Overlay NPA 787 (Puerto Rico) overlay 787 / 939 PR
2000-07-17 New Test Number for NPA 478 (Georgia) other 478 GA
2000-07-11 NPA 774 To Overlay NPA 508; NPA 857 To Overlay NPA 617; NPA 339 To Overlay NPA 781; and NPA 351 To Overlay NPA 978 (Massachusetts) overlay 508 / 774 MA
2000-04-28 NPA 980 To Overlay NPA 704 (North Carolina) overlay 704 / 980 NC
2000-03-14 NPA 878 to Overlay NPAs 412 and 724 (Pennsylvania) overlay 412 / 878 PA
2000-03-01 NPA 682 to Overlay NPA 817 (Texas) overlay 817 / 682 TX
2000-02-29 NPA 647 To Overlay NPA 416 (Southern Ontario) overlay 416 / 647 —
2000-02-21 NPA 234 to Overlay NPA 330 (Ohio) overlay 330 / 234 OH
1999-08-25 NANP-Split of 318 Numbering Plan Area (NPA) in Louisiana; introduction of NPA 337 split 337 LA
1999-07-23 Overlay of 718 (New York) Numbering Plan Area (NPA); New NPA 347 overlay 347 NY
1999-02-23 No Mandatory date set for 1 +10 digit dialing in Chicago NPA 847/224 Overlay; update to PL-127 other 847 —
1999-02-01 Jeopardy Conservation Procedures Announced for Arizona NPA 602 jeopardy 602 AZ
1999-02-01 Jeopardy Conservation Procedures Announced for New Jersey NPA 973 jeopardy 973 NJ
1999-02-01 Jeopardy Conservation Procedures Announced for New Jersey NPA 732 jeopardy 732 NJ
1998-10-15 Elimination of 713/281 (Houston, TX) Split Line and Introduction of Overlay NPA 832 overlay 832 —
1998-10-05 Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for Wisconsin NPA 414 jeopardy 414 WI
1998-10-05 Jeopardy Conservation Procedures Announced for Louisiana NPA 504 and Reminder of the Extended Mandatory Date of 8/16/99 for Cellular Service jeopardy 504 LA
1998-10-05 Jeopardy Conservation Procedures Announced for Kentucky NPA 502 jeopardy 502 KY
1998-03-02 NPA 876 Conversion Extension for Jamaican NPA Relief other 876 —
1997-10-10 Declaration of Jeopardy Situation in NPA 847 (Illinois) jeopardy 847 IL
1997-09-02 Declaration of Jeopardy Situation in NPA 813 (Florida) jeopardy 813 FL
1997-07-31 Declaration of Jeopardy Situation in NPA 913 (Kansas) jeopardy 913 KS
1997-07-14 Declaration of Jeopardy Situation in NPA 303 (Colorado) jeopardy 303 CO
1997-07-01 Declaration of Jeopardy Situation in NPA 713 (Texas) jeopardy 713 TX
1997-04-10 Declaration of Jeopardy Situation in NPA 816 (Missouri) jeopardy 816 MO
1997-04-08 Declaration of Jeopardy Situation in NPA 972 (Texas) jeopardy 972 TX
1997-04-07 Declaration of Jeopardy Situation in NPA 614 (Ohio) jeopardy 614 OH
1997-03-20 Declaration of Jeopardy Situation in NPA 770 (Georgia) jeopardy 770 GA
1997-03-12 Declaration of Jeopardy Situation in NPA 403 (Alberta) jeopardy 403 —
1997-02-11 NANP-Declaration of Jeopardy Situation in NPA 215 (Pennsylvania) jeopardy 215 PA
1997-01-15 Declaration of Jeopardy Situation in NPA 405 (Oklahoma) jeopardy 405 OK
1997-01-15 Declaration of Jeopardy Situation in NPA 501 (Arkansas) jeopardy 501 AR
1996-12-11 Declaration of Jeopardy Situation in NPA 717 (Pennsylvania) jeopardy 717 PA
1996-12-02 Declaration of Jeopardy Situation in NPA 210 (Texas) jeopardy 210 TX
1996-11-15 Declaration of Jeopardy Situation in NPA 817 (Texas) jeopardy 817 TX
1996-10-30 Declaration of Jeopardy Situation in NPA 212 (New York) jeopardy 212 NY
1996-10-29 Declaration of Jeopardy Situation in NPA 714 (California) jeopardy 714 CA
1996-08-26 Declaration of Jeopardy Situation in NPA 508 (Massachusetts) jeopardy 508 MA
1996-08-06 Declaration of Jeopardy Situation in NPA 407 (Florida) jeopardy 407 FL

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