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: 700J WAVENATION, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
956-492 A Harlingen TX   568      
956-492 1 Harlingen TX   568   2026-03-14   
959-279 A Hartford CT   920   2026-03-28   
959-279 0 Hartford CT   920   2026-03-28   
971-528 A Portland OR   672   2026-03-26   
971-528 0 Portland OR   672   2026-03-26   
979-369 A Hearne TX   570   2025-09-12   
979-369 0 Hearne TX   570   2025-09-12   
980-537 A Charlotte NC   422   2026-02-06   
980-537 0 Charlotte NC   422   2026-02-06   
983-219 A Denver CO   656   2025-08-28   
983-219 0 Denver CO   656   2025-08-28   
984-408 A Raleigh NC   426   2026-02-06   
984-408 0 Raleigh NC   426   2026-02-06   
986-303 A Boise ID   652   2026-06-12   
986-303 0 Boise ID   652   2026-06-12   
986-304 A Coeur D'Alene ID   960   2026-06-12   
986-304 0 Coeur D'Alene ID   960   2026-06-12   
989-543 A Saginaw MI   344   2026-03-06   
989-543 0 Saginaw MI   344   2026-03-06   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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