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.

Westport, CT

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
203-216 A MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 0 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 1 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 2 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 3 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 4 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 5 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 6 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 7 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 8 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920      
203-216 9 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-10-22   
203-221 A WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-222 A WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-226 A WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-227 A WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 A WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 0 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 1 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 2 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 3 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 4 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 5 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 6 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 7 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 8 WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-291 9 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-10-22   
203-293 A SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-293 0 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-05-11   
203-293 1 SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      
203-293 2 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-05-11   
203-293 3 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2011-01-24   
203-293 4 NRWLCT028MD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2007-12-07   
203-293 5 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2008-12-12   
203-293 6 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-02-28   
203-293 7 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-09-09   
203-293 8 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2008-11-29   
203-293 9 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2015-05-11   
203-341 A WSPTCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-349 A HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-349 0   5562 METROPCS, INC. 920   2011-03-24   
203-349 1 MDTWCTNIGT1  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2015-11-15   
203-349 2 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-04-13   
203-349 3 HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2012-11-26   
203-349 4 HRFRCTCRDS0  7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT 920      
203-349 5 NRWLCT028MD  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2010-09-23   
203-349 6 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2015-05-08   
203-349 7 NRWLCTCVDS0  4950 CABLEVISION LIGHTPATH, INC. - CT 920   2011-05-27   
203-349 8 SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2004-12-01   
203-349 9 HRFRCTBCDS1  639C ONVOY, LLC - CT 920   2016-02-15   
203-429 A SMFRCTDSDS0  7230 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT 920      

1 2 3 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.