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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-457 A Guilford CT MDSNCT02RS0  9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-457 0 Guilford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-457 1 Guilford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-457 2 Guilford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-457 3 Guilford CT   539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT 920   2018-10-20   
203-457 4 Guilford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      
203-457 5 Guilford CT   318J COMCAST IP PHONE LLC 920   2015-02-04   
203-457 6 Guilford CT   639C ONVOY, LLC - CT 920   2019-02-18   
203-457 7 Guilford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920   2007-09-07   
203-457 8 Guilford CT   639C ONVOY, LLC - CT 920   2019-02-18   
203-457 9 Guilford CT   9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT 920      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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