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 7 8 9 10 11 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
203-617 0 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2007-12-03   
203-617 1 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-06-26   
203-617 2 HRFRCT0383Z  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2008-08-11   
203-617 3 HRFRCT0383Z  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2006-12-30   
203-617 4 SMFRCT0162Z  3863 CTC COMMUNICATIONS CORP. - CT 920   2008-09-10   
203-617 5 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-09-13   
203-617 6 HRFRCT0383Z  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920   2006-12-30   
203-617 7 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-09-13   
203-617 8 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2011-05-19   
203-617 9 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2006-10-27   
203-628 A NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-628 0 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-03-27   
203-628 1 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2021-09-06   
203-628 2 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-09-06   
203-628 3 BLFDCTAP2MD  5562 METROPCS, INC. 920   2013-10-21   
203-628 4 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2013-07-26   
203-628 5 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2013-01-30   
203-628 6 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2011-05-02   
203-628 7 HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2009-03-22   
203-628 8 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-11-26   
203-628 9 NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-648 A SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-648 0 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-07-22   
203-648 1 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-07-22   
203-648 2 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-10-11   
203-648 3 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-10-11   
203-648 4 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920      
203-648 5 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2003-11-02   
203-648 6 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-02-18   
203-648 7 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-02-18   
203-648 8 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2004-07-15   
203-648 9 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-10-21   
203-702 A SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 0 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 1 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 2 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 3 BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-01-17   
203-702 4 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 5 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 6 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 7 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 8 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-702 9 SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-730 A DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 A DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 0 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-09-20   
203-731 1 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      
203-731 2 DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 3 DNBRCT00DS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-731 4 HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920      

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

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.