Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 475 [Rate centres in NPA 475] [Dial plan for NPA 475]

NXX: 383

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
475-383 A Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2025-01-12   
475-383 0 Greenwich CT NYCMNYBXDSL  639C ONVOY, LLC - CT 132   2025-01-12   
475-383 8 Greenwich CT NYCMNY13XNX  732J NUSO, LLC 132   2025-01-13   
475-383 9 Greenwich CT NYCMNY13XNX  732J NUSO, LLC 132   2025-01-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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