In Spring 2007, the KY-PSC approved a split for Area Code 270 in western Kentucky, where "far western" Kentucky would have split to the new 364 Area Code, while 270 would be retained by the eastern part of the existing 270.
270 itself was a split from 502 for all of western Kentucky, back in 1999. 502 was retained by the Louisville KY extended area.As for the 270/364 split, it has been postponed several times. The most recent dates for permissive dialing was to have taken effect in late
2011 (although the KY-PSC "official" permissive date was for 01-January-2012... the telco industry wanted to have permissive begin earlier, before the Christmas/etc. Holidays of 2011/2012, to have the telco network already prepared for permissive dialing), and there was NO currently announced date for mandatory dialing.But as of the April 2010 NeuStar-NANPA (semi-annual) "NRUF" projections of Area Code exhaust (US and Canada), 270 would likely exhaust sometime in 2014. And on Friday 13-August-2010, the KY-PSC yet again postponed the pending 270/364 Area Code split -- now even the permissive dialing date is still to be determined later on.
NeuStar-NANPA Planning Letter 408, dated today Thursday 19-August-2010 addresses this:
Hopefully this recent (yet again) postponement will eventually be turned into an OVERLAY as has happened in other states, especially in California (as well as Utah 801/385 and West Virginia 304/681).
Even the previously postponed splits in California -- the 619/935 split for the areas east of San Diego CA Metro (the second half of what was to be a STAGGERED 3-way split of 619 for 1999-2001), and the staggered 3-way split of 707 along the northern California coast which was scheduled for 2000-02, both having been postponed, could likely be OVERLAYS whenever relief is needed. 707 has never been split at all, it dates back to 1959, the only pre-1995 area code in California which so far has never been split or overlaid -- even some of the post-1995 area codes in California have had additional split or overlay relief since.
When planned for in 1999, the 818/747 relief in California was to have been a split at a TBD date, but in 2007/08 planning for implementation, it was decided that it was to be an overlay which took effect in 2009. And the previously planned for 760/442 split was changed to an overlay.
760 (which covers the old, pre-1982 714) is the largest area code geographically in California, even though large areas are unpopulated or sparsely populated, but when the CA-PUC changed relief from a split to an overlay in 2008 (taking effect in 2009), it was determined that there would probably never be another split in California -- all future NPA relief would be overlay, since the largest geographic code was now overlaid.There always "could" be further splits approved by one state or another. But right now, all NPA relief planning which is close to being approved by the specific state, is being planned for by the telco industry as an overlay, and is likely to be approved by the state regulatory agency as an overlay:
603 / ?? 946 ?? NH 812 / ?? 930 ?? IN 814 / ?? 582 ?? PA 717 / ?? 223 ?? PA876 Jamaica in the NANP-Caribbean might need relief in another several years, and it is likely that this might be an overlay as well.
All pending relief in Canada is for overlays -- there have been several overlays in Canada, in 2001, 2006, 2008, 2010, and future. But the last split in Canada was the Alberta 403/780 split in early 1999.
Mark J. Cuccia markjcuccia at yahoo dot com Lafayette LA, formerly of New Orleans LA pre-Katrina