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
203-745 A New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-745 0 New Haven CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-05-07   
203-745 1 New Haven CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-745 2 New Haven CT   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-05-07   
203-745 3 New Haven CT   7621 COMCAST PHONE OF CONNECTICUT, INC. - CT 920   2006-06-03   
203-745 4 New Haven CT   7621 COMCAST PHONE OF CONNECTICUT, INC. - CT 920   2006-06-03   
203-745 5 New Haven CT   7621 COMCAST PHONE OF CONNECTICUT, INC. - CT 920   2006-06-03   
203-745 6 New Haven CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2007-09-21   
203-745 7 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-28   
203-745 8 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-28   
203-745 9 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2008-07-07   

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

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