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: HMTNOHHMDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
513-529 A Oxford OH 309B CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 922      
513-737 A Hamilton OH 9348 CINCINNATI BELL 922      
513-785 A Hamilton OH 9348 CINCINNATI BELL 922      
513-820 A Hamilton OH 9348 CINCINNATI BELL 922      
513-844 A Hamilton OH 9348 CINCINNATI BELL 922      
513-856 A Hamilton OH 9348 CINCINNATI BELL 922      
513-863 A Hamilton OH 9348 CINCINNATI BELL 922      
513-867 A Hamilton OH 9348 CINCINNATI BELL 922      
513-868 A Hamilton OH 9348 CINCINNATI BELL 922      
513-869 A Hamilton OH 9348 CINCINNATI BELL 922      
513-887 A Hamilton OH 9348 CINCINNATI BELL 922      
513-889 A Hamilton OH 9348 CINCINNATI BELL 922      
513-892 A Hamilton OH 9348 CINCINNATI BELL 922      
513-893 A Hamilton OH 9348 CINCINNATI BELL 922      
513-894 A Hamilton OH 9348 CINCINNATI BELL 922      
513-895 A Hamilton OH 9348 CINCINNATI BELL 922      
513-896 A Hamilton OH 9348 CINCINNATI BELL 922      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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