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: BLPROH420MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
220-999 1 Newport OH 380H CAS COMMUNICATIONS, LLC - OH 324   2021-08-02   
740-371 7 Marietta OH 380H CAS COMMUNICATIONS, LLC - OH 324   2018-01-05   
740-780 A Belpre OH 380H CAS COMMUNICATIONS, LLC - OH 324      
740-780 4 Belpre OH 380H CAS COMMUNICATIONS, LLC - OH 324   2015-05-24   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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