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: GNBONCEU84Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
743-235 A Greensboro NC 478J NUSO, LLC 424      
743-235 1 Greensboro NC 478J NUSO, LLC 424   2020-10-27   
743-902 0 Greensboro NC 478J NUSO, LLC 424   2024-09-22   
743-902 1 Greensboro NC 478J NUSO, LLC 424   2023-12-02   
743-910 1 Greensboro NC 478J NUSO, LLC 424   2024-09-22   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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