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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 234 [Rate centres in NPA 234] [Dial plan for NPA 234]

NXX: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
234-397 A Niles OH   460K FIRST COMMUNICATIONS, LLC 322      
234-397 0 Niles OH   464C ONVOY, LLC - OH 322      
234-397 1 Niles OH   515J IP HORIZON LLC 322      
234-397 2 Niles OH   624H ONVOY SPECTRUM, LLC 322      
234-397 9 Niles OH   460K FIRST COMMUNICATIONS, LLC 322      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.