Local Calling Guide

Area code/prefix search

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

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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: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
203-821 A New Haven CT NWHNCT03DS0 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920 map
203-821 0 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-821 1 New Haven CT 6624 OMNIPOINT COMMUNICATIONS, INC. - CT [link] 920 2007-09-10
203-821 2 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-821 3 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-821 4 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-821 5 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-821 6 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-821 7 New Haven CT 7621 COMCAST PHONE OF CONNECTICUT, INC. - CT [link] 920 2010-10-23
203-821 8 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920
203-821 9 New Haven CT 9147 SOUTHERN NEW ENGLAND TELEPHONE CO. [link] 920



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