Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 234 [Rate centres in NPA 234] [Dial plan for NPA 234]

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
234-437 A Sterling OH WSTROHXAX9X  793K TWC IP ENABLED SERVICES, LLC 923   2025-02-20   
234-437 0 Sterling OH   793K TWC IP ENABLED SERVICES, LLC 923      
234-437 1 Sterling OH   464C ONVOY, LLC - OH 923   2016-04-11   
234-437 2 Sterling OH   024E ARMSTRONG TELECOMMUNICATIONS, INC. - OH 923   2013-06-21   
234-437 3 Sterling OH   464C ONVOY, LLC - OH 923   2016-04-11   
234-437 4 Sterling OH   464C ONVOY, LLC - OH 923   2016-04-11   
234-437 5 Sterling OH   464C ONVOY, LLC - OH 923   2021-01-31   
234-437 6 Sterling OH   464C ONVOY, LLC - OH 923   2021-01-31   
234-437 7 Sterling OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 923   2014-02-17   
234-437 8 Sterling OH   515J IP HORIZON LLC 923   2024-03-03   

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

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