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: 422

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-422 A Greenwich CT GNWCCTGNDS0  9104 VERIZON NEW YORK, INC. 132      
203-422 0 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 1 Greenwich CT   4950 CABLEVISION LIGHTPATH, INC. - CT 132   2007-11-22   
203-422 2 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 3 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 4 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 5 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 6 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 7 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 8 Greenwich CT   9104 VERIZON NEW YORK, INC. 132      
203-422 9 Greenwich CT   350E YMAX COMMUNICATIONS CORP. - CT 132   2010-10-26   

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

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