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: 321J HD CARRIER LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
845-808 8 Brewster NY   132   2014-08-01   
845-813 A Clintondale NY PGHKNYWSVMD  133      
845-813 9 Clintondale NY PGHKNYWSVMD  133   2021-04-26   
848-204 2 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-204 3 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-204 4 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-204 5 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-204 6 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-204 7 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-204 8 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-204 9 Woodbridge NJ NWRKNJ0298Z  224   2016-05-19   
848-239 1 New Brunswick NJ   224   2016-09-04   
848-269 3 New Brunswick NJ NWRKNJ0298Z  224   2016-09-04   
848-269 4 New Brunswick NJ NWRKNJ0298Z  224   2016-09-04   
848-269 5 New Brunswick NJ NWRKNJ0298Z  224   2016-09-04   
848-269 6 New Brunswick NJ NWRKNJ0298Z  224   2016-09-04   
848-277 2 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
848-277 3 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
848-277 4 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
848-277 5 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
848-277 6 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
848-277 7 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
848-277 8 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
848-277 9 Seaside Park NJ NWRKNJ0298Z  224   2016-05-22   
854-205 A Charleston SC CHTNSCFU9MD  436      
854-205 9 Charleston SC CHTNSCFU9MD  436   2020-08-07   
854-208 5 Florence SC   432   2026-02-14   
854-291 1 Charleston SC   436   2025-08-11   
854-554 A Myrtle Beach SC   432   2026-01-22   
854-554 6 Myrtle Beach SC   432   2026-01-22   
854-554 7 Myrtle Beach SC   432   2026-01-22   
854-554 8 Myrtle Beach SC   432   2026-01-22   
854-554 9 Myrtle Beach SC   432   2026-01-22   
856-306 7 Berlin NJ CMDNNJCE55Z  222   2020-05-01   
856-357 8 Mullica Hill NJ CMDNNJCE55Z  222   2020-05-01   
856-402 1 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-402 3 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-402 4 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-402 5 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-402 6 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-402 7 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-402 8 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-450 7 Beaver Brook NJ CMDNNJCE55Z  222   2020-05-08   
856-450 8 Beaver Brook NJ CMDNNJCE55Z  222   2020-05-08   
856-458 0 Beaver Brook NJ CMDNNJCE55Z  222   2016-09-04   
856-458 2 Beaver Brook NJ CMDNNJCE55Z  222   2016-09-04   
856-458 8 Beaver Brook NJ CMDNNJCE55Z  222   2016-05-19   
856-474 5 Gloucester NJ   222   2016-09-04   
856-475 3 Gloucester NJ CMDNNJCE55Z  222   2016-05-19   
856-475 4 Gloucester NJ CMDNNJCE55Z  222   2016-05-19   

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

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