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: 298

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-298 A New Haven CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-298 0 New Haven CT   4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-298 1 New Haven CT   639C ONVOY, LLC - CT 920   2021-08-08   
203-298 2 New Haven CT   6624 OMNIPOINT COMMUNICATIONS, INC. - CT 920   2008-04-21   
203-298 3 New Haven CT   639C ONVOY, LLC - CT 920   2021-08-08   
203-298 4 New Haven CT   612K CSC VOICE, LLC 920      
203-298 5 New Haven CT   4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-298 6 New Haven CT   639C ONVOY, LLC - CT 920   2021-08-08   
203-298 7 New Haven CT   639C ONVOY, LLC - CT 920   2021-08-08   
203-298 8 New Haven CT   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 920   2006-03-07   
203-298 9 New Haven CT   612K CSC VOICE, LLC 920      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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