Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-318 A Madison CT MDSNCT01RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-318 0 Madison CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-318 1 Madison CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-318 2 Madison CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-318 3 Madison CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-318 4 Madison CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-03-19   
203-318 5 Madison CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-318 6 Madison CT   199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-10-15   
203-318 7 Madison CT   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 920   2011-12-01   
203-318 8 Madison CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-318 9 Madison CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2013-05-03   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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