Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
509-424 3 Yakima WA   676   2012-10-07   
509-426 2 Yakima WA   676   2010-05-09   
509-470 3 Wenatchee WA   676   2018-08-19   
509-470 6 Wenatchee WA   676   2007-05-29   
509-470 7 Wenatchee WA   676   2008-02-10   
509-470 8 Wenatchee WA   676   2010-05-09   
509-470 9 Wenatchee WA   676   2014-02-27   
509-476 7 Oroville WA   676   2014-02-28   
509-486 9 Tonasket WA   676   2013-10-24   
509-491 1 Kennewick WA   676   2012-05-15   
509-491 3 Kennewick WA   676   2013-03-01   
509-497 1 Benton City WA   676   2010-09-01   
509-504 7 Yakima WA   676   2020-09-06   
509-515 A Sunnyside WA   676      
509-515 0 Sunnyside WA   676   2007-06-23   
509-515 2 Sunnyside WA   676   2014-06-30   
509-557 6 Omak WA   676   2012-11-29   
509-567 A Pasco WA   676      
509-567 7 Pasco WA   676   2016-12-09   
509-571 1 Yakima WA   676   2014-02-04   
509-572 2 Kennewick WA   676   2011-05-06   
509-578 1 Richland WA   676   2014-03-10   
509-579 0 Kennewick WA   676   2015-08-31   
509-579 4 Kennewick WA   676   2017-11-05   
509-579 5 Kennewick WA   676   2017-07-12   
509-584 A Wapato WA   676      
509-584 0 Wapato WA   676   2007-07-07   
509-619 A Kennewick WA   676      
509-619 0 Kennewick WA   676   2007-05-02   
509-620 8 Coulee Dam WA   676   2019-05-22   
509-644 A Loon Lake WA   676      
509-644 0 Loon Lake WA   676   2017-10-08   
509-653 8 Naches WA   676   2025-03-30   
509-673 9 Tieton WA   676   2025-03-30   
509-678 3 Cowiche WA   676   2025-03-30   
509-685 7 Colville WA   676   2016-06-25   
509-698 2 Selah WA   676   2013-10-31   
509-713 7 Richland WA   676   2011-06-02   
509-738 9 Kettle Falls WA   676   2016-07-10   
509-781 6 Prosser WA   676   2007-06-23   
509-792 1 Pasco WA   676   2014-02-27   
509-820 3 Kennewick WA   676   2014-12-11   
509-823 4 Yakima WA   676   2008-07-25   
509-873 0 Kennewick WA   676   2018-12-04   
509-876 A Walla Walla WA   676      
509-876 0 Walla Walla WA   676   2015-11-12   
509-876 2 Walla Walla WA   676   2007-05-02   
509-876 4 Walla Walla WA   676   2008-07-25   
509-876 8 Walla Walla WA   676   2012-12-01   
509-895 6 Yakima WA   676   2018-10-07   
509-895 7 Yakima WA   676   2007-05-02   
509-896 6 Mabton WA   676   2007-06-23   
509-902 A Yakima WA   676      
509-902 1 Yakima WA   676   2016-07-29   
509-902 8 Yakima WA   676   2018-01-07   
509-936 9 Chewelah WA   676   2017-08-30   
509-940 5 Richland WA   676   2017-07-23   
509-940 9 Richland WA   676   2017-12-03   
509-968 5 Ellensburg WA   676   2013-10-31   
509-987 1 Kennewick WA   676   2010-05-27   
517-238 6 Coldwater Lake MI   348   2007-02-25   
517-296 8 Montgomery MI LNNGMIMN17Z  346   2017-07-08   
517-376 9 Howell MI   340   2007-02-25   
517-583 1 Tekonsha MI   348   2007-02-25   
517-639 2 Quincy MI   348   2007-02-25   
517-705 2 Burlington MI   348   2007-02-25   
517-793 1 Litchfield MI LNNGMIMN17Z  346   2012-10-05   
517-858 1 Bronson MI   348   2007-02-25   
517-901 A Reading MI LNNGMIMN17Z  346   2025-02-13   
517-901 0 Reading MI LNNGMIMN17Z  346   2007-11-19   
517-919 9 Laingsburg MI LNNGMIMN17Z  346   2024-09-15   
517-924 A Coldwater MI   348      
517-924 0 Coldwater MI   348   2007-02-25   
517-924 1 Coldwater MI   348   2011-12-01   
517-932 0 Allen MI LNNGMIMN17Z  346   2017-07-22   
531-255 A Omaha NE OMAHNENWXSY  644      
531-255 4 Omaha NE OMAHNENWXSY  644   2022-08-09   
541-203 8 Stateline OR   676   2014-03-24   
541-204 9 Leaburg OR   670   2019-09-20   
541-205 3 Klamath Falls OR   670   2007-06-14   
541-205 5 Klamath Falls OR   670   2009-08-17   
541-205 6 Klamath Falls OR   670   2008-01-11   
541-219 8 Lakeview OR   670   2017-03-15   
541-226 2 Grants Pass OR   670   2008-01-11   
541-226 9 Grants Pass OR   670   2009-08-30   
541-244 1 Grants Pass OR   670   2007-05-31   
541-254 9 Brookings OR   670   2016-03-25   
541-264 8 Newport OR   670   2008-03-03   
541-272 5 Newport OR   670   2012-05-31   
541-295 8 Grants Pass OR   670   2014-04-19   
541-299 0 Rogue River OR   670   2007-05-31   
541-305 2 Florence OR   670   2018-10-01   
541-315 2 Oakland OR   670   2007-07-18   
541-329 2 Bandon OR   670   2011-06-01   
541-348 1 Langlois OR   670   2011-06-01   
541-361 6 Reedsport OR   670   2008-05-30   
541-366 2 Port Orford OR   670   2009-06-18   
541-423 5 Central Point OR   670   2010-10-16   
541-425 5 Gold Beach OR   670   2008-05-30   
541-458 A Wolf Creek OR   670   2025-03-05   

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Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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