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: 445

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-445 A Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-445 0 Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-445 1 Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-445 2 Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-445 3 Trumbull CT BLFDCTAP2MD  6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2007-12-27   
203-445 4 Trumbull CT   829J PAETEC ITEL, LLC 920   2006-10-24   
203-445 5 Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-445 6 Trumbull CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2005-03-17   
203-445 7 Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-445 8 Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-445 9 Trumbull CT TMBLCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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