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.

OCN: 612K CSC VOICE, LLC

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
740-208 5 Gallipolis OH   324   2014-03-01   
740-315 5 Belpre OH   324   2007-02-16   
740-336 7 Marietta OH   324   2011-04-18   
740-367 2 Cheshire (Gallia) OH   324   2014-03-01   
740-371 A Marietta OH CLMBOH1128Z  324      
740-371 4 Marietta OH   324   2014-01-05   
740-371 5 Marietta OH   324   2014-01-05   
740-428 5 Cheshire (Gallia) OH   324   2009-02-01   
740-434 5 Marietta OH   324   2007-02-16   
740-435 6 Cambridge OH   324   2024-04-14   
740-444 5 Pomeroy OH   324   2007-02-16   
740-578 6 Gallipolis OH   324   2007-02-16   
740-691 A Pomeroy OH ATHNOHXADMD  324      
740-691 4 Pomeroy OH   324   2013-12-29   
740-691 5 Pomeroy OH   324   2013-12-29   
740-799 0 Quaker City OH   324   2024-03-29   
740-860 A Belpre OH CLMBOH1128Z  324      
740-860 3 Belpre OH   324   2014-04-05   
740-896 7 Lowell OH   324   2014-03-01   
760-232 1 Pine Creek CA   730   2015-07-10   
760-258 1 Bishop CA   730   2007-05-17   
760-263 5 Big Pine CA   730   2007-05-17   
760-263 7 Big Pine CA   730   2014-03-23   
760-273 6 Earp: Earp DA CA   730   2014-03-03   
760-276 1 Parker Dam CA   730   2014-03-03   
760-278 5 Blythe CA   730   2014-03-23   
760-544 7 Blythe CA   730   2007-06-19   
760-627 A Earp: Earp DA CA VTVLCAXAXPX  730      
760-627 4 Earp: Earp DA CA   730   2006-10-27   
760-648 8 June Lake CA   730   2015-07-10   
760-709 5 Mammoth Lakes CA   730   2011-09-19   
760-965 0 Mammoth Lakes CA   730   2014-03-03   
775-505 5 Pahrump NV   721   2016-05-05   
816-253 2 Agency MO   524   2014-03-02   
816-259 A St Joseph MO STJSMODNFMD  524      
816-259 2 St Joseph MO   524   2013-12-29   
816-259 3 St Joseph MO   524   2013-12-29   
816-259 4 St Joseph MO   524   2013-12-29   
816-259 5 St Joseph MO   524   2013-12-29   
816-273 0 St Joseph MO   524   2002-07-27   
816-338 A Agency MO STJSMODNFMD  524      
816-338 4 Agency MO   524   2005-04-01   
816-342 A Avenue City MO STJSMODNFMD  524      
816-342 2 Avenue City MO   524   2014-03-02   
816-342 3 Avenue City MO   524   2007-06-19   
816-432 A Savannah MO STJSMODNFMD  524      
816-432 0 Savannah MO   524   2008-04-21   
816-432 2 Savannah MO   524   2014-03-02   
816-432 4 Savannah MO   524   2005-04-01   
816-484 A San Antonio MO STJSMODNFMD  524      
816-484 2 San Antonio MO   524   2014-03-02   
816-484 4 San Antonio MO   524   2006-01-31   
816-689 A St Joseph MO STJSMODNFMD  524      
816-689 0 St Joseph MO   524      
816-689 1 St Joseph MO   524      
816-689 2 St Joseph MO   524      
816-689 3 St Joseph MO   524      
816-689 4 St Joseph MO   524      
816-689 5 St Joseph MO   524      
816-689 6 St Joseph MO   524      
816-749 A St Joseph MO STJSMODNFMD  524      
816-749 1 St Joseph MO   524   2011-03-31   
816-749 2 St Joseph MO   524   2011-03-31   
816-749 4 St Joseph MO   524   2006-12-30   
828-340 3 Sylva NC AHVLNCOH13Z  420   2021-09-27   
828-365 5 Enka-Candler NC AHVLNCOH13Z  420   2021-09-27   
828-377 4 Waynesville NC AHVLNCOH13Z  420   2021-09-27   
828-487 1 Highlands NC AHVLNCOH13Z  420   2021-09-27   
828-519 2 Weaverville NC AHVLNCOH13Z  420   2021-09-27   
828-547 6 Cashiers NC AHVLNCOH13Z  420   2021-09-27   
828-574 A Asheville NC AHVLNCOH13Z  420      
828-574 5 Asheville NC AHVLNCOH13Z  420   2021-08-26   
828-576 1 Franklin NC AHVLNCOH13Z  420   2021-09-27   
828-583 2 Marion NC AHVLNCOH13Z  420   2021-09-27   
828-590 A Fairview NC AHVLNCOH13Z  420      
828-590 3 Fairview NC AHVLNCOH13Z  420   2021-10-23   
828-607 A Morganton NC CHRLNCBOXDZ  422      
828-607 5 Morganton NC CHRLNCBOXDZ  422   2021-08-26   
828-630 3 Arden NC AHVLNCOH13Z  420   2021-09-26   
828-642 A Hendersonville NC AHVLNCOH13Z  420      
828-642 3 Hendersonville NC AHVLNCOH13Z  420   2021-10-23   
828-799 2 Glenwood-Providence NC AHVLNCOH13Z  420   2021-09-27   
828-867 1 Micaville NC AHVLNCOH13Z  420   2021-09-27   
828-882 5 Cullowhee NC AHVLNCOH13Z  420   2021-09-27   
828-900 6 Black Mountain NC AHVLNCOH13Z  420   2021-09-27   
830-651 A Kerrville TX CSHLTX12AMD  566      
830-651 5 Kerrville TX   566   2024-05-23   
831-312 A Monterey CA SLNSCA01XSY  736      
831-312 5 Monterey CA   736   2024-05-26   
832-412 8 Humble TX   560   2013-09-05   
832-412 9 Humble TX   560   2012-05-31   
832-543 5 Splendora TX   560   2014-02-28   
832-966 A Cleveland TX NCGDTXNCKMD  560      
832-966 5 Cleveland TX   560   2014-06-22   
832-990 A Huffman TX BYTWTXXANMD  560      
832-990 4 Huffman TX   560   2013-12-29   
832-990 5 Huffman TX   560   2013-12-29   
845-201 8 Pearl River NY HCVLNYAHDS5  132   2007-07-02   
845-202 7 Beacon NY PGHKNYSHX6X  133   2011-10-20   
845-204 A Poughkeepsie NY PGHKNYSHX6X  133      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.