Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 4800 LEVEL 3 COMMUNICATIONS, LLC - CT

<< 1 2 3 4 5 6 7 8 9 10 11 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
203-404 0 New Haven CT SMFRCTPU4MD  920      
203-404 1 New Haven CT SMFRCTPU4MD  920      
203-404 3 New Haven CT SMFRCTPU4MD  920   2005-01-09   
203-404 4 New Haven CT SMFRCTPU4MD  920   2004-07-22   
203-404 5 New Haven CT SMFRCTPU4MD  920   2006-04-07   
203-404 6 New Haven CT SMFRCTPU4MD  920   2006-09-23   
203-404 7 New Haven CT SMFRCTPU4MD  920   2004-12-03   
203-416 6 Bridgeport CT SMFRCTPU4MD  920   2008-01-31   
203-416 8 Bridgeport CT SMFRCTPU4MD  920   2002-10-07   
203-423 0 Wilton CT SMFRCTPU4MD  920   2006-01-02   
203-423 5 Wilton CT SMFRCTPU4MD  920   2010-11-23   
203-427 8 Meriden CT SMFRCTPU4MD  920   2008-05-19   
203-428 4 Stamford CT SMFRCTPU4MD  920   2004-07-14   
203-429 3 Westport CT SMFRCTPU4MD  920   2010-08-23   
203-429 8 Westport CT SMFRCTPU4MD  920   2002-09-12   
203-433 0 Branford CT SMFRCTPU4MD  920   2008-05-15   
203-433 5 Branford CT SMFRCTPU4MD  920   2011-01-31   
203-433 8 Branford CT SMFRCTPU4MD  920   2005-12-09   
203-437 4 Waterbury CT SMFRCTPU4MD  920   2003-03-02   
203-437 6 Waterbury CT SMFRCTPU4MD  920   2005-02-19   
203-437 7 Waterbury CT SMFRCTPU4MD  920   2004-10-27   
203-441 8 Wolcott CT SMFRCTPU4MD  920   2005-09-22   
203-445 6 Trumbull CT SMFRCTPU4MD  920   2005-03-17   
203-446 2 Ansonia-Derby CT SMFRCTPU4MD  920   2004-12-28   
203-446 3 Ansonia-Derby CT SMFRCTPU4MD  920   2004-12-28   
203-446 4 Ansonia-Derby CT SMFRCTPU4MD  920   2003-08-12   
203-446 5 Ansonia-Derby CT SMFRCTPU4MD  920   2005-02-04   
203-456 2 Danbury CT SMFRCTPU4MD  920   2012-02-06   
203-460 8 Danbury CT SMFRCTPU4MD  920   2002-07-16   
203-463 2 Seymour CT SMFRCTPU4MD  920   2005-12-18   
203-463 4 Seymour CT SMFRCTPU4MD  920   2004-12-12   
203-487 5 Stamford CT SMFRCTPU4MD  920      
203-487 8 Stamford CT SMFRCTPU4MD  920   2014-10-24   
203-490 0 Naugatuck CT SMFRCTPU4MD  920   2005-01-17   
203-490 2 Naugatuck CT SMFRCTPU4MD  920   2005-02-07   
203-490 4 Naugatuck CT SMFRCTPU4MD  920   2003-08-12   
203-493 A Georgetown CT SMFRCTPU4MD  920      
203-493 0 Georgetown CT SMFRCTPU4MD  920   2004-11-11   
203-493 2 Georgetown CT SMFRCTPU4MD  920   2006-01-02   
203-502 7 Bridgeport CT SMFRCTPU4MD  920   2006-07-28   
203-504 7 Stamford CT SMFRCTPU4MD  920   2006-05-05   
203-504 9 Stamford CT SMFRCTPU4MD  920   2006-01-08   
203-513 3 Huntington CT SMFRCTPU4MD  920   2003-07-21   
203-513 5 Huntington CT SMFRCTPU4MD  920   2007-05-26   
203-516 2 Ansonia-Derby CT SMFRCTPU4MD  920      
203-516 3 Ansonia-Derby CT SMFRCTPU4MD  920      
203-516 4 Ansonia-Derby CT SMFRCTPU4MD  920      
203-517 A Stamford CT SMFRCTPU4MD  920      
203-517 0 Stamford CT SMFRCTPU4MD  920   2005-03-20   
203-517 4 Stamford CT SMFRCTPU4MD  920      

<< 1 2 3 4 5 6 7 8 9 10 11 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.