Local Calling Guide

Area code/prefix search

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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 709

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-709 A Waterbury CT WTRBCT00DS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 0 Waterbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-17   
203-709 1 Waterbury CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2007-12-17   
203-709 2 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 3 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 4 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 5 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 6 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 7 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 8 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-709 9 Waterbury CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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