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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OCN: 612K CSC VOICE, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
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      
845-204 9 Poughkeepsie NY PGHKNYSHX6X  133   2010-09-19   
845-208 7 Mahopac NY HCVLNYAHDS5  132   2003-09-10   
845-209 A Elizaville NY PGHKNYSHXBY  133      
845-209 8 Elizaville NY PGHKNYSHXBY  133   2004-10-11   
845-214 0 Poughkeepsie NY PGHKNYSHX6X  133   2007-10-12   
845-215 5 Nanuet NY HCVLNYAHDS5  132   2003-05-05   
845-215 9 Nanuet NY HCVLNYAHDS5  132   2005-04-07   
845-218 9 Wappingers Falls NY PGHKNYSHX6X  133   2012-09-02   
845-232 A Poughkeepsie NY PGHKNYSHXMY  133      
845-232 7 Poughkeepsie NY PGHKNYSHXMY  133   2010-08-20   
845-233 4 Hyde Park NY PGHKNYSHX6X  133   2004-07-27   
845-233 5 Hyde Park NY PGHKNYSHX6X  133   2004-07-27   
845-236 0 Marlboro NY PGHKNYSHX6X  133   2004-07-27   
845-238 2 Monroe NY PGHKNYSHX6X  133   2004-07-26   
845-238 3 Monroe NY PGHKNYSHX6X  133   2004-07-26   
845-238 5 Monroe NY PGHKNYSHX6X  133   2004-07-26   
845-240 1 Poughkeepsie NY PGHKNYSHX6X  133   2007-06-17   
845-241 5 Haverstraw NY HCVLNYAHDS5  132   2013-09-14   
845-256 7 New Paltz NY PGHKNYSHX6X  133   2004-07-26   
845-259 7 Brewster NY HCVLNYAHDS5  132   2003-07-15   
845-261 2 Highland NY PGHKNYSHXBY  133   2018-08-13   
845-262 1 Spring Valley NY HCVLNYAHDS5  132   2011-10-20   
845-266 0 Clinton Corners NY PGHKNYSHX6X  133   2004-07-26   
845-267 8 Congers NY HCVLNYAHDS5  132   2003-05-05   
845-269 3 Haverstraw NY HCVLNYAHDS5  132   2005-05-12   
845-270 7 Haverstraw NY HCVLNYAHDS5  132   2004-08-20   
845-271 3 Haverstraw NY HCVLNYAHDS5  132   2010-09-19   
845-271 4 Haverstraw NY HCVLNYAHDS5  132   2007-09-08   
845-273 A Highland Mills NY PGHKNYSHRMD  133      
845-273 1 Highland Mills NY PGHKNYSHRMD  133   2015-07-23   
845-284 2 Lakeland NY HCVLNYAHDS5  132   2003-11-24   
845-290 A Spring Valley NY WHPLNYGR1MD  132      
845-290 0 Spring Valley NY WHPLNYGR1MD  132   2004-07-23   
845-290 1 Spring Valley NY WHPLNYGR1MD  132   2004-07-23   

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

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