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.

Danbury, CT

<< 1 2 3 4 5 6

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
475-454 5 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-454 6 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-454 7 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-454 8 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-529 A HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-529 0 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
475-529 1 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
475-529 2 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
475-529 3 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920      
475-529 4 HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
475-529 5 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-529 6 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-529 7 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
475-529 8 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
475-529 9 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
475-750 A HRFRCT0344Z  866H BARR TEL USA, INC. - CT 920      
475-750 0 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920      
475-750 1 HRFRCT0344Z  866H BARR TEL USA, INC. - CT 920      
475-750 2 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-750 3 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-750 4 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-750 5 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-750 6   639C ONVOY, LLC - CT 920      
475-750 7 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-750 8 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-750 9 HRFRCTBCDS1  639C ONVOY, LLC - CT 920      
475-867 A HRFRCTBC0MD  939H COMMIO, LLC 920      
475-867 0 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
475-867 1 HRFRCTBC0MD  939H COMMIO, LLC 920      
475-867 2 HRFRCTBC0MD  939H COMMIO, LLC 920      
475-867 3 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-867 4 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
475-867 5 HRFRCTBC0MD  939H COMMIO, LLC 920      
475-867 8 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      
475-867 9 HRFRCT0380Z  539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920      

<< 1 2 3 4 5 6

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.