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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-203 A Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 0 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 1 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 2 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 3 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 4 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 5 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 6 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 7 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 8 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   
203-203 9 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2024-11-21   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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