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: 355

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-355 A Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      

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

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