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
517-705 2 Burlington MI ANTSMIAD0MD  348   2007-02-25   
517-793 1 Litchfield MI LNNGMIMN17Z  346   2012-10-05   
517-858 1 Bronson MI ANTSMIAD0MD  348   2007-02-25   
517-891 5 Frontier MI LNNGMIMN17Z  346   2026-02-22   
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 ANTSMIAD0MD  348      
517-924 0 Coldwater MI ANTSMIAD0MD  348   2007-02-25   
517-924 1 Coldwater MI ANTSMIAD0MD  348   2011-12-01   
517-932 0 Allen MI LNNGMIMN17Z  346   2017-07-22   
517-991 5 Camden MI LNNGMIMN17Z  346   2026-02-22   
517-995 1 Jonesville MI LNNGMIMN17Z  346   2026-01-29   
518-204 1 Mooers NY ALBYNYSS04Z  134   2026-03-22   
518-206 1 Rouses Point NY ALBYNYSS04Z  134   2026-03-22   
518-208 1 Champlain NY ALBYNYSS04Z  134   2026-03-22   
518-215 1 Chazy NY ALBYNYSS04Z  134   2026-03-22   
518-293 5 Saranac NY ALBYNYSS04Z  134   2010-07-29   
518-310 A Plattsburgh NY ALBYNYSS04Z  134      
518-310 0 Plattsburgh NY ALBYNYSS04Z  134   2010-07-29   
518-310 1 Plattsburgh NY ALBYNYSS04Z  134   2011-06-04   
518-310 3 Plattsburgh NY ALBYNYSS04Z  134   2012-07-16   
518-492 3 Dannemora NY ALBYNYSS04Z  134   2010-07-29   
518-566 4 Plattsburgh NY ALBYNYSS04Z  134   2015-05-28   
518-643 5 Peru NY ALBYNYSS04Z  134   2010-07-29   
518-647 0 Au Sable Forks NY ALBYNYSS04Z  134   2016-03-06   
518-778 0 West Chazy NY ALBYNYSS04Z  134   2019-02-01   
518-834 0 Keeseville NY ALBYNYSS04Z  134   2016-02-17   
518-873 1 Elizabethtown NY ALBYNYSS04Z  134   2010-07-29   
518-946 6 Wilmington NY ALBYNYSS04Z  134   2016-02-17   
518-963 3 Willsboro NY ALBYNYSS04Z  134   2022-05-18   
530-215 A Redding CA ARSNCABS1MD  724      
530-215 1 Redding CA ARSNCABS1MD  724   2012-06-02   
530-215 3 Redding CA ARSNCABS1MD  724   2012-09-02   
530-255 8 Redding CA ARSNCABS1MD  724   2010-05-30   
530-319 3 Redding CA ARSNCABS1MD  724   2017-08-06   
530-319 4 Redding CA ARSNCABS1MD  724   2019-02-18   
530-319 7 Redding CA ARSNCABS1MD  724   2017-12-31   
530-338 2 Redding CA ARSNCABS1MD  724   2013-06-10   
530-348 A Cottonwood CA ARSNCABS1MD  724      
530-348 2 Cottonwood CA ARSNCABS1MD  724   2007-09-23   
530-364 A Anderson CA ARSNCABS1MD  724      
530-364 2 Anderson CA ARSNCABS1MD  724   2012-01-15   
530-378 5 Anderson CA ARSNCABS1MD  724   2007-09-23   
530-386 9 Truckee CA SLKTCA101MD  726   2016-10-17   
530-548 9 North Tahoe: Brockway DA CA SLKTCA101MD  726   2021-07-15   
530-549 8 Millville CA ARSNCABS1MD  724   2021-04-15   
530-553 1 North Tahoe: Brockway DA CA SLKTCA101MD  726   2010-07-01   
530-584 2 North Tahoe: Tahoe City DA CA SLKTCA101MD  726   2011-02-25   
530-600 A South Tahoe CA SLKTCA101MD  726      

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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