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: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
234-370 A Youngstown OH YNTWOH74X4X  321J HD CARRIER LLC 322      
234-370 0 Youngstown OH YNTWOH78ZMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2024-12-13   
234-370 1 Youngstown OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2025-02-03   
234-370 2 Youngstown OH   478J NUSO, LLC 322   2025-06-27   
234-370 8 Youngstown OH YNTWOH74X4X  321J HD CARRIER LLC 322   2023-05-11   
234-370 9 Youngstown OH YNTWOH74X4X  321J HD CARRIER LLC 322   2023-05-11   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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