Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 380 [Rate centres in NPA 380] [Dial plan for NPA 380]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
380-257 A Dublin OH HLRDOHEJGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324      
380-257 0 Dublin OH   073H TELNYX LLC 324   2023-03-03   
380-257 1 Dublin OH   464C ONVOY, LLC - OH 324   2023-07-30   
380-257 2 Dublin OH   464C ONVOY, LLC - OH 324   2023-03-11   
380-257 3 Dublin OH   464C ONVOY, LLC - OH 324   2023-05-22   
380-257 4 Dublin OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2023-09-04   
380-257 5 Dublin OH   464C ONVOY, LLC - OH 324   2023-07-30   
380-257 6 Dublin OH   464C ONVOY, LLC - OH 324   2023-07-30   
380-257 7 Dublin OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2023-04-23   
380-257 8 Dublin OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2023-02-23   
380-257 9 Dublin OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2023-02-23   

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

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