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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Switch: AGSTGAMT06Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
762-257 A Augusta GA 478J NUSO, LLC 442      
762-257 1 Augusta GA 478J NUSO, LLC 442   2020-10-12   
762-343 3 Augusta GA 478J NUSO, LLC 442   2023-12-01   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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