Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 330 [Rate centres in NPA 330] [Dial plan for NPA 330]

NXX: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
330-423 A Youngstown OH YNTWOHHD0MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 322      
330-423 0 Youngstown OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 322   2005-02-03   
330-423 1 Youngstown OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 322   2005-07-16   
330-423 2 Youngstown OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2007-07-20   
330-423 3 Youngstown OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2007-07-20   
330-423 4 Youngstown OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 322      
330-423 5 Youngstown OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2008-02-24   
330-423 6 Youngstown OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 322   2010-07-24   
330-423 7 Youngstown OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2007-10-15   
330-423 8 Youngstown OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2007-10-15   
330-423 9 Youngstown OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 322   2007-10-15   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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