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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-517 4 Stamford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-528 A Waterbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-528 0 Waterbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-529 4 Wilton CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-04-16   
203-529 6 Wilton CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-03-10   
203-533 A Guilford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-533 4 Guilford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-04-16   
203-538 6 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-03-14   
203-539 6 Stamford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-12-21   
203-548 A Stamford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-548 9 Stamford CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-07-16   
203-551 9 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-07-01   
203-567 4 Huntington CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-09-08   
203-577 5 Waterbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-01-31   
203-583 A Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-583 3 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-03-31   
203-583 4 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-583 8 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-09-03   
203-584 9 New Haven CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2010-12-09   
203-586 4 Woodbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2016-06-11   
203-590 A Trumbull CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-590 4 Trumbull CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-11-26   
203-590 6 Trumbull CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-03-03   
203-599 A Meriden CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-599 0 Meriden CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-01-17   
203-599 1 Meriden CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-07   
203-599 3 Meriden CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2006-07-22   
203-599 4 Meriden CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2003-01-06   
203-604 A Norwalk CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-604 0 Norwalk CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-03-12   
203-604 2 Norwalk CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-09-11   
203-604 6 Norwalk CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-11-03   
203-604 8 Norwalk CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2002-07-16   
203-604 9 Norwalk CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-06-04   
203-612 A Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-612 2 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-612 3 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-612 5 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-07-17   
203-612 9 Bridgeport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-616 A Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-616 2 Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-616 3 Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-616 4 Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-617 0 Danbury CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-12-03   
203-633 A Wolcott CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-633 0 Wolcott CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-04   
203-633 1 Wolcott CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-02-14   
203-633 4 Wolcott CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-635 A Westport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-635 0 Westport CT 4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-12-29   

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

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