Local Calling Guide

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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 817

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-817 A Stamford CT NRWLCT02YMD  4950 CABLEVISION LIGHTPATH, INC. - CT 920      
203-817 0 Stamford CT   612K CSC VOICE, LLC 920   2011-12-05   
203-817 1 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-01-17   
203-817 2 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-01-17   
203-817 3 Stamford CT   4950 CABLEVISION LIGHTPATH, INC. - CT 920   2007-02-22   
203-817 4 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-01-17   
203-817 5 Stamford CT   4950 CABLEVISION LIGHTPATH, INC. - CT 920   2012-08-27   
203-817 6 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2014-12-05   
203-817 7 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-07-25   
203-817 8 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-07-25   
203-817 9 Stamford CT   6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 920   2013-07-25   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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