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: CLMDOH44LMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
380-266 4 Columbus OH 478J NUSO, LLC 324   2023-12-03   
380-266 5 Columbus OH 478J NUSO, LLC 324   2023-12-03   
614-618 A Columbus OH 478J NUSO, LLC 324      
614-618 1 Columbus OH 478J NUSO, LLC 324   2020-09-03   
614-999 1 Columbus OH 478J NUSO, LLC 324   2012-04-06   

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

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