Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-654 A New Haven CT NHVNCT00RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-654 0 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-03-07   
203-654 1 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2003-04-05   
203-654 2 New Haven CT   3863 CTC COMMUNICATIONS CORP. - CT 920   2007-12-04   
203-654 3 New Haven CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2014-01-03   
203-654 4 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-654 5 New Haven CT   6664 SPRINT SPECTRUM L.P. 920   2005-07-07   
203-654 6 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2004-03-17   
203-654 7 New Haven CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-09-03   
203-654 8 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-654 9 New Haven CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-04-01   

Last updated: Thu, 31 Jan 2019 11:20:40 UTC

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