Local Calling Guide

Area code/prefix search

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-635 4 Westport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-635 5 Westport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-08-26   
203-635 6 Westport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-03-03   
203-636 0 Darien CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-11-11   
203-643 8 Branford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-03-07   
203-648 A Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-648 4 Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-648 9 Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-10-21   
203-651 5 Cheshire CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-10-28   
203-651 7 Cheshire CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-12-12   
203-652 8 New Canaan CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-01-02   
203-654 3 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2014-01-03   
203-654 7 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-09-03   
203-664 7 Redding CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2014-07-06   
203-666 A Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-666 4 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2013-11-17   
203-669 A Darien CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
203-669 2 Darien CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-680 3 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2013-01-12   
203-684 5 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-02-14   
203-687 A New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-687 4 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-692 A Fairfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-692 3 Fairfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-692 4 Fairfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-01-10   
203-694 3 Meriden CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-12-01   
203-698 5 Old Greenwich CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-07-26   
203-704 A Wolcott CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-704 9 Wolcott CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-09-07   
203-712 A Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-712 0 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-04-24   
203-712 2 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-712 3 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-712 4 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-712 5 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-712 9 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-716 A New Canaan CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
203-716 8 New Canaan CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-10-07   
203-718 A Cheshire CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2025-04-26   
203-718 2 Cheshire CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-718 4 Cheshire CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-720 8 Naugatuck CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-04-07   
203-721 6 Waterbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2008-12-10   
203-725 0 Waterbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2001-05-07   
203-745 0 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-05-07   
203-745 2 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-05-07   
203-763 A Fairfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-763 4 Fairfield CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2003-03-23   
203-764 2 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-12-03   
203-774 3 Wallingford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-04   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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