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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
651-314 5 Lake City MN   628   2012-08-27   
706-330 1 Columbus GA   438   2013-01-03   
706-610 1 Columbus GA CLMBGAMTXKX  438   2006-08-02   
706-610 5 Columbus GA CLMBGAMTXKX  438   2005-12-20   
706-610 6 Columbus GA CLMBGAMTXKX  438   2006-01-03   
706-610 7 Columbus GA CLMBGAMTXKX  438   2006-01-17   
706-610 8 Columbus GA CLMBGAMTXKX  438   2006-04-28   
706-610 9 Columbus GA CLMBGAMTXKX  438   2006-05-12   
706-753 A Waverly Hall GA CLMBGAMTXKX  438      
706-753 0 Waverly Hall GA CLMBGAMTXKX  438   2010-05-14   
706-801 8 Hamilton GA CLMBGAMTXKX  438   2010-05-14   
706-987 6 Columbus GA CLMBGAMTXKX  438   2006-12-04   
707-281 6 Kelseyville CA SNRSCA01LMD  722   2017-10-30   
707-289 4 Kelseyville CA SNRSCA01LMD  722   2010-08-20   
707-348 8 Upper Lake CA SNRSCA01LMD  722   2010-09-03   
707-413 3 Lakeport CA SNRSCA01LMD  722   2010-08-20   
707-461 4 Lower Lake CA SNRSCA01LMD  722   2015-12-24   
707-560 5 Clearlake Oaks CA SNRSCA01LMD  722   2010-08-20   
707-600 A Nice CA SNRSCA01LMD  722      
707-600 0 Nice CA SNRSCA01LMD  722   2015-05-17   
707-600 1 Nice CA SNRSCA01LMD  722   2010-08-20   
707-701 6 Lower Lake CA SNRSCA01LMD  722   2010-08-20   
707-730 1 Lakeport CA SNRSCA01LMD  722   2018-12-16   
707-809 7 Middletown CA SNRSCA01LMD  722   2010-08-20   
707-881 3 Cobb Mountain CA SNRSCA01LMD  722   2010-08-20   
712-215 9 Shenandoah IA OMAHNENWXXX  644   2010-04-16   
712-220 A Carroll IA OMAHNENWXXX  644      
712-220 1 Carroll IA OMAHNENWXXX  644   2010-04-16   
712-250 8 Atlantic IA OMAHNENWXXX  644   2015-07-12   
712-254 9 Atlantic IA OMAHNENWXXX  644   2010-04-16   
712-267 8 Denison IA OMAHNENWXXX  644   2010-04-16   
712-292 4 Carroll IA OMAHNENWXXX  644   2005-07-14   
712-307 8 Avoca IA ADBNIAXO0MD  644   2010-05-07   
712-357 A Red Oak IA OMAHNENWXXX  644      
712-357 1 Red Oak IA OMAHNENWXXX  644   2010-05-04   
712-404 1 Harlan IA ADBNIAXO0MD  644   2010-05-07   
712-453 A Essex IA OMAHNE16X4X  644      
712-453 9 Essex IA OMAHNE16X4X  644   2010-04-16   
712-497 A Glidden IA ADBNIAXO0MD  644      
712-497 1 Glidden IA ADBNIAXO0MD  644   2010-05-07   
712-520 9 Glenwood IA OMAHNENWXXX  644   2010-04-16   
712-523 1 Bedford IA OMAHNENWXXX  644   2010-04-16   
712-588 A Audubon IA ADBNIAXO0MD  644      
712-588 1 Audubon IA ADBNIAXO0MD  644   2010-04-16   
712-623 1 Red Oak IA OMAHNENWXXX  644   2005-07-14   
712-662 8 Sac City IA OMAHNENWXXX  644   2010-04-16   
712-850 A Clarinda IA CLRDIAXT3MD  644      
712-850 1 Clarinda IA CLRDIAXT3MD  644   2010-05-04   
712-939 A Villisca IA OMAHNE16X4X  644      
712-939 9 Villisca IA OMAHNE16X4X  644   2010-04-16   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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