Local Calling Guide

Area code/prefix search

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Last updated: Thu, 20 Nov 2014 03:01:16 UTC

How to use this page

NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
203-200 A New Haven CT HRFRCT0379Z 199F BANDWIDTH.COM CLEC, LLC - CT [link] 920 2008-10-22 map
203-200 0 New Haven CT 199F BANDWIDTH.COM CLEC, LLC - CT [link] 920 2008-10-22
203-200 1 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 2009-06-02
203-200 2 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 2009-06-02
203-200 3 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 2009-06-02
203-200 4 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 2009-06-02
203-200 5 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 2009-06-02
203-200 6 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 2009-06-02
203-200 7 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT [link] 920 2009-07-14
203-200 8 New Haven CT 6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920 2010-02-08
203-200 9 New Haven CT 6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT [link] 920 2010-02-08



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