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: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-312 A Danbury CT NWFLCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-312 0 Danbury CT NWFLCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-312 1 Danbury CT SMFRCT0162Z  3863 CTC COMMUNICATIONS CORP. - CT 920   2004-06-18   
203-312 2 Danbury CT NWFLCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-312 3 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2005-01-02   
203-312 4 Danbury CT HRFRCTASBMD  6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2005-07-03   
203-312 5 Danbury CT NWFLCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-312 6 Danbury CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2005-09-11   
203-312 7 Danbury CT HRFRCT0379Z  199F BANDWIDTH.COM CLEC, LLC - CT 920   2010-03-19   
203-312 8 Danbury CT NWFLCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-312 9 Danbury CT NWFLCT00RS1  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

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

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