Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

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Last updated: Fri, 17 May 2013 01:26:12 UTC

How to use this page

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

NXX: 553

NPA-NXX-X Rate Centre Region Switch OCN LATA Eff date Disc date Map
203-553 New Haven CT NWHNCT03DS0 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 map
203-553-0 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 map
203-553-1 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-553-2 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-553-3 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-553-4 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-553-5 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-553-6 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-553-7 New Haven CT 7621 COMCAST PHONE OF CONNECTICUT, INC. - CT [link] 920 2008-09-26
203-553-8 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-553-9 New Haven CT 4950 CABLEVISION LIGHTPATH, INC. - CT [link] 920 2011-08-26


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