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.

Switch: WTRBCT001MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
203-267 8 Woodbury CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2008-04-25   
203-379 2 Meriden CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2006-02-17   
203-706 A Waterbury CT 3863 CTC COMMUNICATIONS CORP. - CT 920      
203-706 1 Waterbury CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2004-04-04   
203-707 5 Waterbury CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2011-06-03   
203-714 1 Naugatuck CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2005-04-18   
203-718 1 Cheshire CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2004-06-06   
203-806 3 Cheshire CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2006-10-16   
475-263 6 Waterbury CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2020-02-28   
475-343 6 Meriden CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2015-07-08   
860-378 6 Southington CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2006-07-10   
860-393 3 Litchfield CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2006-08-17   
860-484 8 Thomaston CT 3863 CTC COMMUNICATIONS CORP. - CT 920   2006-12-28   

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

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