Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 321J HD CARRIER LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
831-859 8 Salinas CA MTRYCAPM9MD  736   2024-08-23   
831-859 9 Salinas CA MTRYCAPM9MD  736   2024-08-23   
831-999 4 Santa Cruz CA SNFCCA21XOZ  722   2016-06-13   
831-999 5 Santa Cruz CA SNFCCA21XOZ  722   2016-06-17   
831-999 6 Santa Cruz CA SNFCCA21XOZ  722   2016-06-13   
832-408 3 Houston TX   560   2025-07-19   
838-227 A Central Bridge NY ALBYNYSSXEZ  134      
838-227 8 Central Bridge NY ALBYNYSSXEZ  134   2021-01-03   
838-227 9 Central Bridge NY ALBYNYSSXEZ  134   2021-01-03   
838-281 8 Troy NY   134   2026-01-18   
838-839 A Albany NY ALBYNYSSXZY  134      
838-839 9 Albany NY ALBYNYSSXZY  134   2019-03-09   
839-201 A Columbia SC CLMASCTLX5Y  434      
839-201 9 Columbia SC CLMASCTLX5Y  434   2020-08-07   
839-218 A Columbia SC CLMASCTLX6Y  434      
839-218 8 Columbia SC CLMASCTLX6Y  434   2022-10-03   
839-218 9 Columbia SC CLMASCTLX6Y  434   2022-10-03   
839-307 5 Newberry SC   434   2026-02-14   
839-307 6 Newberry SC   434   2026-02-14   
839-307 7 Newberry SC   434   2026-02-14   
840-221 A San Bernardino CA LSANCARCY9X  730      
840-221 8 San Bernardino CA LSANCARCY9X  730   2022-12-22   
840-221 9 San Bernardino CA LSANCARCY9X  730   2022-12-22   
843-647 5 Charleston SC   436   2025-08-11   
843-713 4 Florence SC   432   2026-02-14   
843-942 5 Florence SC   432   2026-02-14   
845-269 4 Haverstraw NY   132   2014-08-01   
845-277 2 Croton Falls NY   132   2014-08-01   
845-287 2 Carmel NY   132   2014-08-01   
845-363 5 Brewster NY NYCMNY37UMD  132   2013-04-05   
845-400 3 Spring Valley NY NYCMNY37UMD  132   2016-08-22   
845-400 7 Spring Valley NY NYCMNY37UMD  132   2014-08-01   
845-403 2 Spring Valley NY NYCMNY37UMD  132   2016-08-22   
845-403 3 Spring Valley NY NYCMNY37UMD  132   2016-08-22   
845-403 4 Spring Valley NY NYCMNY37UMD  132   2016-08-22   
845-403 5 Spring Valley NY NYCMNY37UMD  132   2016-08-22   
845-422 4 New City NY NYCMNY37UMD  132   2014-08-01   
845-504 4 Suffern NY   132   2014-08-01   
845-507 7 Nanuet NY   132   2014-08-01   
845-560 A Ellenville NY PGHKNYWSTMD  133      
845-560 9 Ellenville NY PGHKNYWSTMD  133   2020-09-25   
845-600 7 Mahopac NY NYCMNY37UMD  132   2014-08-01   
845-630 2 Carmel NY   132   2016-08-22   
845-630 3 Carmel NY NYCMNY37UMD  132   2016-08-22   
845-630 4 Carmel NY NYCMNY37UMD  132   2016-08-22   
845-630 6 Carmel NY NYCMNY37UMD  132   2016-08-22   
845-643 6 Nyack NY NYCMNY37UMD  132   2014-08-01   
845-731 5 Pearl River NY   132   2014-08-01   
845-737 7 Peekskill NY   132   2014-08-01   
845-759 9 Sloatsburg NY   132   2014-08-01   

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

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