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
580-540 9 Enid OK   536   2012-04-06   
580-572 5 Perry OK   536   2014-08-09   
580-650 2 Weatherford OK   536   2012-05-24   
580-804 4 Woodward OK   536   2022-03-10   
580-910 4 Healdton OK   536   2024-04-08   
580-969 4 Hugo OK   536   2024-04-13   
606-230 1 Allen KY   466   2014-03-01   
606-257 1 South Williamson KY   466   2014-03-01   
606-257 5 South Williamson KY   466   2007-01-10   
606-259 7 Allen KY   466   2009-02-04   
606-263 4 Prestonsburg KY   466   2007-01-10   
606-264 A Paintsville KY WNCHKYMAXLY  466      
606-264 4 Paintsville KY   466   2014-03-01   
606-264 5 Paintsville KY   466   2007-01-10   
606-313 2 Pikeville KY   466   2022-03-12   
606-333 1 Virgie KY   466   2022-09-18   
606-390 2 Warfield KY   466   2014-03-01   
606-390 5 Warfield KY   466   2007-01-10   
606-431 9 Elkhorn City KY   466   2022-03-12   
606-458 1 Grayson KY   466   2024-04-20   
606-506 A Prestonsburg KY WNCHKYMAXLY  466      
606-506 4 Prestonsburg KY   466   2013-12-28   
606-506 5 Prestonsburg KY   466   2013-12-28   
606-518 9 Fedscreek KY   466   2022-09-18   
606-519 A Stone KY WNCHKYMAXLY  466      
606-519 3 Stone KY   466   2014-03-01   
606-519 4 Stone KY   466   2007-01-10   
606-534 3 Inez KY   466   2014-03-01   
606-534 4 Inez KY   466   2014-03-01   
606-534 7 Inez KY   466   2007-01-10   
606-646 6 Meads KY   466   2024-03-04   
606-705 9 Lewisburg (Mason) KY   466   2024-04-21   
609-208 3 Allentown NJ CMDNNJCEXZY  222   2011-07-15   
609-223 0 Allentown NJ CMDNNJCEXZY  222   2004-07-11   
609-223 2 Allentown NJ CMDNNJCEXZY  222   2004-07-11   
609-228 3 Princeton NJ CMDNNJCEXZY  222   2004-07-11   
609-245 8 Mercerville NJ CMDNNJCEXZY  222   2011-10-13   
609-249 4 Mercerville NJ CMDNNJCEXZY  222   2013-05-04   
609-281 2 Pennington NJ CMDNNJCEXZY  222   2004-07-08   
609-301 7 Hightstown NJ CMDNNJCEXZY  222   2007-12-12   
609-323 4 Ewing NJ CMDNNJCEXZY  222   2004-07-11   
609-336 A Hightstown NJ CMDNNJCE25Z  222      
609-336 0 Hightstown NJ CMDNNJCEXZY  222   2004-07-11   
609-341 8 Trenton NJ CMDNNJCEXZY  222   2006-10-19   
609-424 5 Bordentown NJ CMDNNJCEXZY  222   2004-07-11   
609-438 9 Mercerville NJ CMDNNJCEXZY  222   2015-11-30   
609-450 2 Lawrenceville NJ CMDNNJCEXZY  222   2004-07-11   
609-508 A Trenton NJ CMDNNJCEXYZ  222      
609-508 1 Trenton NJ CMDNNJCEXYZ  222   2012-04-22   
609-521 0 Fort Dix NJ CMDNNJCEXZY  222   2004-07-11   
609-528 0 Mercerville NJ CMDNNJCEXZY  222   2007-07-22   
609-570 5 Mercerville NJ CMDNNJCEXZY  222   2007-08-03   
609-570 8 Mercerville NJ CMDNNJCEXZY  222   2008-10-17   
609-738 3 New Egypt NJ CMDNNJCEXZY  222   2004-07-11   
609-785 A Plainsboro NJ CMDNNJCE38Z  222      
609-785 9 Plainsboro NJ CMDNNJCEXZY  222      
609-834 A Hightstown NJ CMDNNJCEXSZ  222      
609-834 1 Hightstown NJ CMDNNJCEXSZ  222   2015-07-23   
609-838 0 Mercerville NJ CMDNNJCEXZY  222   2004-07-11   
609-838 1 Mercerville NJ CMDNNJCEXZY  222   2006-09-23   
609-838 2 Mercerville NJ CMDNNJCEXZY  222   2005-01-22   
609-838 7 Mercerville NJ CMDNNJCEXZY  222   2005-01-22   
609-838 9 Mercerville NJ CMDNNJCEXZY  222   2007-04-22   
609-931 A Trenton NJ CMDNNJCE38Z  222      
609-931 0 Trenton NJ CMDNNJCE38Z  222      
609-931 9 Trenton NJ CMDNNJCE38Z  222      
609-981 7 Mercerville NJ CMDNNJCE38Z  222   2011-07-01   
620-618 A Fort Scott KS WCHTKSMBX0Z  532      
620-618 5 Fort Scott KS   532   2024-05-23   
620-949 9 Anthony KS   532   2024-04-21   
631-203 4 Central Islip NY WHPLNYGR1MD  132   2018-03-08   
631-204 5 Southampton NY WHPLNYGR1MD  132   2013-06-08   
631-214 A Deer Park NY WHPLNYGR1MD  132      
631-214 1 Deer Park NY WHPLNYGR1MD  132   2015-07-23   
631-223 2 Huntington NY WHPLNYGR1MD  132   2002-06-10   
631-223 3 Huntington NY WHPLNYGR1MD  132   2002-06-10   
631-228 4 Shoreham NY WHPLNYGR1MD  132   2007-10-12   
631-236 5 Brentwood NY WHPLNYGR1MD  132   2003-01-31   
631-237 1 Bridgehampton NY WHPLNYGR1MD  132   2010-07-22   
631-238 A Montauk Point NY WHPLNYGR1MD  132      
631-238 5 Montauk Point NY WHPLNYGR1MD  132   2001-11-10   
631-239 1 Northport NY WHPLNYGR1MD  132   2007-07-02   
631-239 5 Northport NY WHPLNYGR1MD  132   2002-06-11   
631-239 6 Northport NY WHPLNYGR1MD  132   2002-06-11   
631-245 6 Brentwood NY WHPLNYGR1MD  132   2007-11-17   
631-250 A St James NY WHPLNYGR1MD  132      
631-250 9 St James NY WHPLNYGR1MD  132   2013-05-31   
631-256 5 Sayville NY WHPLNYGR1MD  132   2011-10-27   
631-256 6 Sayville NY WHPLNYGR1MD  132   2002-12-16   
631-257 5 Smithtown NY WHPLNYGR1MD  132   2013-09-14   
631-259 2 Southampton NY WHPLNYGR1MD  132   2004-11-25   
631-259 3 Southampton NY WHPLNYGR1MD  132   2001-09-18   
631-267 5 Amagansett NY WHPLNYGR1MD  132   2001-09-18   
631-270 4 Farmingdale NY WHPLNYGR1MD  132   2002-06-10   
631-274 5 Deer Park NY WHPLNYGR1MD  132   2002-06-10   
631-284 3 Riverhead NY WHPLNYGR1MD  132   2003-07-02   
631-284 9 Riverhead NY WHPLNYGR1MD  132   2010-10-29   
631-285 2 Ronkonkoma NY WHPLNYGR1MD  132   2013-03-17   
631-285 3 Ronkonkoma NY WHPLNYGR1MD  132   2013-09-28   
631-291 9 Brentwood NY WHPLNYGR1MD  132   2004-08-25   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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